Re: Jenix DRO's - any experience with these?

I saw some Jenix DROs on eBay (the one I was looking at went for
$627). Anyone have an experience with these? They're from a Korean
company but I can't find anything about them on the web.

Ken J.
kjenkins@...

> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
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>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto:
> aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if
> you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this to be a sister
> site to the CCED group, as many of the same members are there, for OT
> subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM.
> DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> bill
> List Mom
> List Owner
>
>
> ------------------------------------------------------------------------
>
> There are 25 messages in this issue.
>
> Topics in this digest:
>
> 1. Re: How do I 'make' a ballscrew antibacklash nut?
> From: "dspinnett" <dspinnett@...>
> 2. Re: NAMES get together
> From: "jmkasunich" <jmkasunich@...>
> 3. Re: Tonmac Mills - Good Choice for Retrofit?
> From: "natchamp_87" <mark@...>
> 4. Re: Re: DRO issue "HEDs in hand"
> From: "John A. McFadden" <mcfadden@...>
> 5. Re: Names One of the very few Off Topic posts
> allowed......................
> From: "jmkasunich" <jmkasunich@...>
> 6. Re: Added a VFD to my CNC mill
> From: "jmkasunich" <jmkasunich@...>
> 7. CNC Flood Coolant?
> From: "Chris and Dee" <brunoblazer@...>
> 8. Re: How do I 'make' a ballscrew antibacklash nut?
> From: "afogassa" <afogassa@...>
> 9. Re: Tonmac Mills - Good Choice for Retrofit?
> From: Marv Frankel <dcdziner@...>
> 10. Coolant pumps
> From: Bill Higdon <w.higdon@...>
> 11. 0.0007" Resolution for Z axis, good enough?
> From: "John A. McFadden" <mcfadden@...>
> 12. Hobby CNC Close Out Prices and New Website
> From: "darigotti" <drigotti@...>
> 13. Re: Re: Added a VFD to my CNC mill
> From: Country Bubba <axtein@...>
> 14. Re: 0.0007" Resolution for Z axis, good enough?
> From: Country Bubba <axtein@...>
> 15. Nuts and Volts cnc article
> From: "bdrmachine" <bdrmachine@...>
> 16. Re: Free 3-D simulator
> From: "Raymond Heckert" <jnr@...>
> 17. Re: Bridgeport Series II CNC specifications
> From: "Raymond Heckert" <jnr@...>
> 18. Re: CNC Flood Coolant?
> From: "dakota8833" <dakota8833@...>
> 19. Re: CNC Flood Coolant?
> From: C.S. Mo <cs@...>
> 20. Re: Re: Newbie Questions
> From: C.S. Mo <cs@...>
> 21. RE: Free 3-D simulator
> From: "Lloyd Leung" <lloyd@...>
> 22. Re: Re: Ballscrew accuracy
> From: "Raymond Heckert" <jnr@...>
> 23. Re: CNC Flood Coolant?
> From: "Raymond Heckert" <jnr@...>
> 24. Re: CNC Flood Coolant?
> From: Jerry Kimberlin <kimberln@...>
> 25. Re: Toshiba laptop for CNC router
> From: cnc002@...
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 1
> Date: Wed, 30 Oct 2002 20:04:34 -0000
> From: "dspinnett" <dspinnett@...>
> Subject: Re: How do I 'make' a ballscrew antibacklash nut?
>
> Thanks Ray.
>
> My work envelope at one shot is rarely over 6" anyway. Would that
> justify .001 screws and anti-backlash? I'd like to be accurate over
> 6" within a couple thou if practical.
>
> Final goal is to make mini running engines, and probably a full size
> engine too. The 'Griz' doesn't seem too bad overall - better quality
> that the lathe anyway. (both are brand new).
>
>
> --- In CAD_CAM_EDM_DRO@y..., "Raymond Heckert" <jnr@a...> wrote:
>> Ball screws are practically anti-backlash, nevertheless,
>> FYO, you'd basically put the two nuts back-to-back, and
>> screw them together, until they almost 'bind'. now you have
>> a backlash-free nut. Of course, you wouldn't really mount
>> them back-to-back, you'd mount each 'back' to either side
>> of a mounting plate, and use spring washers to 'pre-load'
>> the screws, allowing some 'give' under severe pressures,
>> instead of making it a 'hard' mechanical back-to-back
>> interface. With a Grizzly, and 0.004"/ft screws, I'd not
>> bother with the antibacklash, as 'machine slop' coupled
>> with the 0.004"/ft will be the real test for your system.
>> 'Less'n, of course, you're looking for some REAL accurate
>> work.
>>
>> RayHex
>
>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 2
> Date: Wed, 30 Oct 2002 20:09:32 -0000
> From: "jmkasunich" <jmkasunich@...>
> Subject: Re: NAMES get together
>
> --- In CAD_CAM_EDM_DRO@y..., "Dave Kowalczyk" <dkowalcz@d...> wrote:
>> Matt:
>>
>> It's pretty early to tell for sure, but I'll probably be there
>> again in 2003.
>>
>
> Ditto... I went to NAMES for the first time this year. I spent
> most of Sunday hanging around the CNC area talking to Jon Elson
> and others. They pointed me to this group and re-kindled my
> interest in CNC and computer controlled motion (includes robotics
> as well as machines). I haven't had much time to work on it, but
> I'm slowly gathering parts and materials to CNC my Shoptask.
>
>> Since it's noisy and hard to find people at the show, a CNC
>> pow-wow is an excellent idea, perhaps on one of the evenings.
>> I was a bit frustrated with how difficult it was to socialize
>> at the NAMES 2002; and there were a few folks I would have
>> really liked to chat more with.
>>
>
> Good idea!
>
>> If someone lives near the site and is willing to host, I'd
>> say a good CCED house party would fit the bill.
>
> I live closer than you, but Cleveland is still a little too far
> from Detroit for a pow-wow site.
>
> Question for Ray Henry: Will there be BDI installs, etc., at
> NAMES next year?
>
> John Kasunich
>
>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 3
> Date: Wed, 30 Oct 2002 20:13:38 -0000
> From: "natchamp_87" <mark@...>
> Subject: Re: Tonmac Mills - Good Choice for Retrofit?
>
> Thanks Jerry, I'm going to follow up with the link you provided to
> get info on them too. It wouldn't take too many people to make the
> shipping cost dramatically reduce.
> Mark
>
> --- In CAD_CAM_EDM_DRO@y..., Jerry Kimberlin <kimberln@a...> wrote:
>> natchamp_87 wrote:
>>
>>> http://tonmac.com.cn/e/product/tonmac/index_x6323a.htm
>>>
>>> I can purchase this brand spankin new for 2k. Only problem is
>>> shipping which is 1,700 to West coast.
>>
>>> I know its not a BP, but what do you guys think?
>>
>> It is an attractive price and machine size. In fact I might be
>> interested. They are made in China, however. That may be a
>> downside against which one could compare those made in Taiwan.
>> See offerings at: http://www.handyage.com.tw/metal/machine.htm.
>> If you go thru all the pages, you will come to the GEM500GV and
>> the GEM600PV. A couple years ago these machines were offered in
>> CNC versions with ball screws, etc. We were all wondering if the
>> GEM500 could be had without the control, but with the ball
>> screws. Inquiries never came to anything so far as I know. The
>> GEMs are mill drills but very unordinary ones.
>>
>> I've never seen a tonmac so far as I know. They may be rebranded
>> over here, of course. Have you actually seen one in the flesh?
>>
>> OTOH, a decent Bridgeport (Boss 6 or better with servo motors)
>> can be had for less money, or so I'm told.
>>
>> JerryK
>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 4
> Date: Wed, 30 Oct 2002 15:15:05 -0800
> From: "John A. McFadden" <mcfadden@...>
> Subject: Re: Re: DRO issue "HEDs in hand"
>
> Jeff:
> Its $85 for 600mm, $50 for 166-200mm lengths (asked about that length range
> for my Y and Z axis).
> Its a good thing you mentioned EncoderTech, I never did the math on the
> metric scales, and only looked at the 720CPI scales but took them off my
> list of possibles when they said that they did not have any longer than
> 3.25". With .0004" resolution and Don Mauch's method for protecting the
> strips, it looks like I am good to go.
>
> I am also a little confused by the math, the US Digital encoders and strips
> can only quadrature out, giving the resolution as four times the lines per
> inch of the scales, but Encoder Tech's encoders double the resolution and
> then quadrature it? Seems a little strange to me, but if it works, it
> works. What are you using to read the output of the encoder? Are you
> getting .01mm resolution?
>
> John
>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 5
> Date: Wed, 30 Oct 2002 20:23:40 -0000
> From: "jmkasunich" <jmkasunich@...>
> Subject: Re: Names One of the very few Off Topic posts
> allowed......................
>
> --- In CAD_CAM_EDM_DRO@y..., "mariss92705" <mariss92705@y...> wrote:
>> Bill,
>>
>> Do you have an exact date in April? If scheduling permits, I will
> fly
>> out for the day to make it.
>>
>> Mariss
>>
>
> If you come to NAMES, bring Geckos - you will leave with money!
> (My money anyway... I have decided to use Geckos for my Shoptask
> conversion. Haven't bought them yet cause I haven't had the time
> to work on it much.)
>
> I look forward to the opportunity to meet you and talk about
> power electronics and motor control. (I design high power AC
> drives for a living, but my knowledge of small servo and
> stepper drives is sketchy at best.)
>
> John Kasunich
>
>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 6
> Date: Wed, 30 Oct 2002 20:29:05 -0000
> From: "jmkasunich" <jmkasunich@...>
> Subject: Re: Added a VFD to my CNC mill
>
> --- In CAD_CAM_EDM_DRO@y..., Country Bubba <axtein@d...> wrote:
>> Dan,
>>
>> I also have another file from a motor manufacturer that
>> includes this information:
>>
>> "Maximum Safe Mechanical
>> Speed Limits
>> (does not imply constant
>> horsepower capability)
>> Motor @ 1800 rpm
>> Frame Direct Belted*
>> 56-184 5400 2250
>> 213-256 4200 2250
>> 284-286 3600 2250
>> 324-326 3600 2250
>> 364-365 2700 2250
>> 404-449 2700 2250
>> *Belted per NEMA MG1-14.41 (dated
>> 1993)"
>>
>> nobody that I have talked with can tell me WHY the
>> belted rate is lower than the direct drive rate???
>>
>
> I can't be sure, but I expect that the side load on the
> shaft and bearings in belted duty is the reason for the
> lower speed limit. I am most familiar with larger motors
> (5HP and up, to 600-1000 HP). In the larger sizes, there
> are different motor designs for belted vs. direct drive.
> Bearings and shaft sizes, among other things, are adjusted
> to handle the side loading.
>
> John Kasunich
>
>
>
>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 7
> Date: Wed, 30 Oct 2002 20:51:55 -0000
> From: "Chris and Dee" <brunoblazer@...>
> Subject: CNC Flood Coolant?
>
> This may get axed as off topic - and if so I apologize and would
> welcome people to respond off list, its just that I know of no other
> group that would have good ideas.
>
> When I'm machining manually, I don't mind so much using the squirt
> bottle for coolant supply. However, I'm not so sure that's going to
> cut it when I get the CNC running so I wanted to setup an easily
> controlled flood coolant system (but cheap - since I'm good like
> that). I was going to try building one using a windshield washer
> pump. You can basically get them next to free (if not free) at a
> junkyard and they're easily controlled with a dc relay off the
> parallel port. Has anybody tried this? Anybody know any good
> reasons why this may not work? The only concern I have is duty
> cycle, but if another pump is practically free, maybe its not an
> issue. THoughts?
>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 8
> Date: Wed, 30 Oct 2002 21:19:43 -0000
> From: "afogassa" <afogassa@...>
> Subject: Re: How do I 'make' a ballscrew antibacklash nut?
>
> --- In CAD_CAM_EDM_DRO@y..., "dspinnett" <dspinnett@y...> wrote:
>>
>>> Some ballnuts has one end with outside fine treads on it, put
> both
>>> ballnuts agaist each other and using the adjusting outside nut
> you
>>> can put pressure on the two ballnuts forcing them to pull apart
>> from
>>> each other thus, preloading them.
>>> sort of split acme nuts.
>>> The springs, takes the adjusting nut place ,and it works ok only
>> for
>>> small loads.
>>
>>
>> Ah, I think get it.
>>
>> If I went the adjusting nut route, I would thread both ball nuts
> into
>> the center coupling nut then mount just one of the ball nuts to the
>> bed attaching where the original split brass nut went?
>>
>> If so, should be easy enough.. On the square ball nuts, is there
> room
>> to bolt the flat directly through the corners of the body, or do
> you
>> always have to have a flange to mount to?
>>
>> Thanks for the input..
>>
>> Dave.
>
> I don't know what size ballscrews you need, but technoisel have
> ballscrews that have a zero backlash ballnuts, cheaper and easyer to
> install than any other ballscrews.
> they have it with 16mm od ballscrews, and 25mm od.
> I've got three 16mm diameter ballscrews 1m long and three ballnuts
> for about $450.00 bucks.
> the nuts are split in half, so i just needed to make a square block
> with a hole on it for the nut,adjusting is just a matter of tightening
> the setscrew and it's all done.
> the nut is split axialy not in a cross section.
> I'm using it on my minimill and on a 24x24 gantry with good results.
>
>
>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 9
> Date: Wed, 30 Oct 2002 12:58:01 -0800
> From: Marv Frankel <dcdziner@...>
> Subject: Re: Tonmac Mills - Good Choice for Retrofit?
>
> Mark,
> If it was my money, I'd look for a good used Bridgeport here on the
> west coast, which can be had for less than your $2,000.
>
> Marv Frankel
> Los Angeles
>
> ----- Original Message -----
> From: "natchamp_87" <mark@...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Wednesday, October 30, 2002 10:39 AM
> Subject: [CAD_CAM_EDM_DRO] Tonmac Mills - Good Choice for Retrofit?
>
>
>> I'm still in the process of deciding what mill to get for my retrofit
>> project, burning lots of midnight oil on the net. I came across this
>> manufacture:
>>
>> http://tonmac.com.cn/e/product/tonmac/index_x6323a.htm
>>
>> I can purchase this brand spankin new for 2k. Only problem is
>> shipping which is 1,700 to West coast. I might be able to piggy back
>> on another shipment because the 20' cargo container can hold way more
>> than one machine.
>>
>> I know its not a BP, but what do you guys think?
>> Mark
>>
>>
>> Addresses:
>> FAQ: http://www.ktmarketing.com/faq.html
>> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
>> Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
>>
>> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
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>> Moderator: jmelson@... timg@... [Moderator]
>> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
>>
>> OFF Topic POSTS: General Machining
>> If you wish to post on unlimited OT subjects goto:
> aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if
> you have trouble.
>> http://www.metalworking.com/news_servers.html
>>
>> http://groups.yahoo.com/group/jobshophomeshop I consider this to be a
> sister site to the CCED group, as many of the same members are there, for OT
> subjects, that are not allowed on the CCED list.
>>
>> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM.
> DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
>> bill
>> List Mom
>> List Owner
>>
>>
>>
>> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>>
>>
>
>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 10
> Date: Wed, 30 Oct 2002 13:49:33 -0800
> From: Bill Higdon <w.higdon@...>
> Subject: Coolant pumps
>
> I don't know about using a windsheld washer pump for this for safety
> reasons. IMHO a external electric fuel pump from a car would be a better
> idea.
> Bill Higdon
>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 11
> Date: Wed, 30 Oct 2002 17:15:04 -0800
> From: "John A. McFadden" <mcfadden@...>
> Subject: 0.0007" Resolution for Z axis, good enough?
>
> I'm trying to convert my mill/drill to DRO on the cheap (being a college kid
> and not having much cash to spare), and right now I've got the option of doing
> it with 0.0004" resolution on all three axis for $350 or 0.0004" on X and Y
> and 0.0007" on the Z for $300. Is the higher resolution on the Z axis really
> critical for general machining? I'm new to machining, so I thought I would
> ask everyone on the list for input and thoughts.
>
> John
>
> [Non-text portions of this message have been removed]
>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 12
> Date: Wed, 30 Oct 2002 22:37:58 -0000
> From: "darigotti" <drigotti@...>
> Subject: Hobby CNC Close Out Prices and New Website
>
> Hobby CNC is pleased to announce that we have lowered the price on
> our 60oz-in CNC package to close out levels. NEW lower prices on our
> planset, driver boards, and other CNC packages too!
> We have also updated our website with a new look.
> Please have a visit. www.hobbycnc.com
>
> Thank You
> Dave Rigotti
> Hobby CNC
>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 13
> Date: Wed, 30 Oct 2002 18:50:34 -0500
> From: Country Bubba <axtein@...>
> Subject: Re: Re: Added a VFD to my CNC mill
>
> John,
> Thanks as that makes more sense than anything I have heard!
>
> As stated previously, I have limited my upper rpm, but this is mainly due
> to the heating that occurs on the lower end of the quill. This has been
> reported by many and seems to be related to the shaft seal more than
> anything else. (Poor design)??????
>
> Anyhow, I rarely need any speeds above 2000 rpm.
>
>
>
> At 08:29 PM 10/30/02 +0000, you wrote:
>> --- In CAD_CAM_EDM_DRO@y..., Country Bubba <axtein@d...> wrote:
>>> Dan,
>>>
>>> I also have another file from a motor manufacturer that
>>> includes this information:
>>>
>>> "Maximum Safe Mechanical
>>> Speed Limits
>>> (does not imply constant
>>> horsepower capability)
>>> Motor @ 1800 rpm
>>> Frame Direct Belted*
>>> 56-184 5400 2250
>>> 213-256 4200 2250
>>> 284-286 3600 2250
>>> 324-326 3600 2250
>>> 364-365 2700 2250
>>> 404-449 2700 2250
>>> *Belted per NEMA MG1-14.41 (dated
>>> 1993)"
>>>
>>> nobody that I have talked with can tell me WHY the
>>> belted rate is lower than the direct drive rate???
>>>
>>
>> I can't be sure, but I expect that the side load on the
>> shaft and bearings in belted duty is the reason for the
>> lower speed limit. I am most familiar with larger motors
>> (5HP and up, to 600-1000 HP). In the larger sizes, there
>> are different motor designs for belted vs. direct drive.
>> Bearings and shaft sizes, among other things, are adjusted
>> to handle the side loading.
>>
>> John Kasunich
>
> Bubba
>
> OLDER THAN DIRT
> Country Bubba
> (Actually the inventor of Country and Bubba)
>
> axtein@...
> LaGrange, GA
>
> [Non-text portions of this message have been removed]
>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 14
> Date: Wed, 30 Oct 2002 19:01:45 -0500
> From: Country Bubba <axtein@...>
> Subject: Re: 0.0007" Resolution for Z axis, good enough?
>
> John,
> I did my mill/drill for less than $200 for all THREE axis and that included
> a used computer/monitor!!!
>
> The biggest cost will be the encoders; however if you can find an old
> deskjet printer, you can get a 360 lPI strip and encoder. Realize this will
> be a max of about 10" long; but that will be good for the Y and Z axis.
> This would leave you having to get only the X axis encoder at a higher price.
>
> 360 LPI in quadrature will give you 1/ (360*4) or a resolution of 0.00069"
> See my tag line for info on how I did it.
>
> At 05:15 PM 10/30/02 -0800, you wrote:
>> I'm trying to convert my mill/drill to DRO on the cheap (being a college
>> kid and not having much cash to spare), and right now I've got the option
>> of doing it with 0.0004" resolution on all three axis for $350 or 0.0004"
>> on X and Y and 0.0007" on the Z for $300. Is the higher resolution on the
>> Z axis really critical for general machining? I'm new to machining, so I
>> thought I would ask everyone on the list for input and thoughts.
>>
>> John
>
> Bubba
>
> OLDER THAN DIRT
> Country Bubba
> (Actually the inventor of Country and Bubba)
>
> axtein@...
> LaGrange, GA
>
> http://ns1.dicomm.net/~axtein/dro
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 15
> Date: Thu, 31 Oct 2002 00:36:30 -0000
> From: "bdrmachine" <bdrmachine@...>
> Subject: Nuts and Volts cnc article
>
> What ever happened to the Nuts and Volts cnc article that was to air
> in the Nov. issue?
>
>
> Brian
>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 16
> Date: Wed, 30 Oct 2002 11:53:10 -0600
> From: "Raymond Heckert" <jnr@...>
> Subject: Re: Free 3-D simulator
>
> Did anybody else get the advert from cncsimulator.com
> offering a free 'hobby' version of their 3-D program, as a
> download? Anybody try it yet? I'll foreward the ad sent to
> me to the list, if it's okay with 'Mom' & others on the
> list
>
> RayHex
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 17
> Date: Wed, 30 Oct 2002 18:36:22 -0600
> From: "Raymond Heckert" <jnr@...>
> Subject: Re: Bridgeport Series II CNC specifications
>
> I just measured my SERIES I, and it's 87.5" OA.H. Not sure
> how S. I & S. II compare. Could you bring the machine in on
> it's 'back', or it's 'tummy'... maybe on it's side? Cut a
> hole on the door if you must, but get that machine in, and
> working!
>
> RayHex
>
> ----------
>> From: tmartin23 <tmartin23@...>
>>
>> I have the opportunity to try to squeeze one of these
> machines into
>> my garage and I have been having difficulty finding out
> the
>> dimensions of this beast. This is an early 1980's Boss5
> / stepper
>> motor controlled machine with the rigid ram and
> kwik-switch tooling.
>> Does anyone know the specific height requirements? A
> manual Series
>> II Special Bridgeport is 84" - I've been told. I know
> this CNC
>> machine is a bit taller than that. Any ideas?
>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 18
> Date: Thu, 31 Oct 2002 01:21:42 -0000
> From: "dakota8833" <dakota8833@...>
> Subject: Re: CNC Flood Coolant?
>
> --- In CAD_CAM_EDM_DRO@y..., "Chris and Dee" <brunoblazer@y...> wrote:
>> This may get axed as off topic - and if so I apologize and would
>> welcome people to respond off list, its just that I know of no other
>> group that would have good ideas.
>>
>> When I'm machining manually, I don't mind so much using the squirt
>> bottle for coolant supply. However, I'm not so sure that's going to
>> cut it when I get the CNC running so I wanted to setup an easily
>
>> reasons why this may not work? The only concern I have is duty
>> cycle, but if another pump is practically free, maybe its not an
>> issue. THoughts?
>
> The electric fuel pump is your best bet. No duty cycle. The washer
> pump will not hold up to oil bases. You could buy an external one new,
> but if you like cheap, pick up an in tank type from the local salvage
> yard. I like the Gm ones but what can I say.
>
> I use one for my lathe.
>
> Frank
>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 19
> Date: Wed, 30 Oct 2002 20:22:19 -0500
> From: C.S. Mo <cs@...>
> Subject: Re: CNC Flood Coolant?
>
> I've been using a 2.5 gallon parts washer on my Bandsaw very
> successfully.. The only real problem I have with it is I haven't had time
> to make a decent cover for it so the coolant evaporates very quickly.
> I've also been meaning to make a real drip pan - for now I just clamped
> the parts washer underneath the bandsaw table with a bit of overhang on
> both sides. The parts washer cost me $30 and I picked up a couple 1/4"
> NPT connectors and a valve at Home Despot for another $5. Not quite free
> but pretty cheap... Runs on 110..etc.
>
> --C.S.
>
>> This may get axed as off topic - and if so I apologize and would
>> welcome people to respond off list, its just that I know of no other
>> group that would have good ideas.
>>
>> When I'm machining manually, I don't mind so much using the squirt
>> bottle for coolant supply. However, I'm not so sure that's going to
>> cut it when I get the CNC running so I wanted to setup an easily
>> controlled flood coolant system (but cheap - since I'm good like
>> that). I was going to try building one using a windshield washer
>> pump. You can basically get them next to free (if not free) at a
>> junkyard and they're easily controlled with a dc relay off the
>> parallel port. Has anybody tried this? Anybody know any good
>> reasons why this may not work? The only concern I have is duty
>> cycle, but if another pump is practically free, maybe its not an
>> issue. THoughts?
>>
>> Addresses:
>> FAQ: http://www.ktmarketing.com/faq.html
>> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
>> Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
>>
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>> Moderator: jmelson@... timg@... [Moderator]
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>>
>> OFF Topic POSTS: General Machining
>> If you wish to post on unlimited OT subjects goto:
>> aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it
>> if you have trouble.
>> http://www.metalworking.com/news_servers.html
>>
>> http://groups.yahoo.com/group/jobshophomeshop I consider this to be a
>> sister site to the CCED group, as many of the same members are there, for
>> OT subjects, that are not allowed on the CCED list.
>>
>> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM.
>> DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
>> bill
>> List Mom
>> List Owner
>>
>>
>>
>> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 20
> Date: Wed, 30 Oct 2002 20:34:14 -0500
> From: C.S. Mo <cs@...>
> Subject: Re: Re: Newbie Questions
>
>> Hi C.S.,
>>
>> Firstly I have a concern about your band saw and mill stands.
>> Although your welds look very good, you still should consider adding
>> braces to the legs! As you raise and lower your saw head you're
>
> The bandsaw stand is boxed so I wouldn't worry about that. The mill stand
> is 2x2 1/4" wall square steel tube - you could park a truck on it....
>
> ----
>
> To bring back a question that has been recently discussed with Ballscrews
> but not Acme rod..
>
> I have roughly .015" backlash in my X and Y travels. I've heard talk
> about "double-nutting" in order to reduce backlash. Has anyone done this
> to one of the little Mill/Drills? Any advice on how to go about doing it?
> I've considered going to ball screws but my understanding is that ball
> screws make it so that the machine can not be used for manual milling -
> is that correct?
>
> --C.S.
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 21
> Date: Wed, 30 Oct 2002 20:37:19 -0500
> From: "Lloyd Leung" <lloyd@...>
> Subject: RE: Free 3-D simulator
>
> I've tried it, but could only get it to work with the mill module.
> Seems to work well.
>
> The lathe module never worked for me, but if anyone knows a way to get
> it to work, please share.
>
> I sent in a request for support, but haven't got a reply in about 3
> weeks now. But it's free, so I can't complain.
>
> Cheers.
>
>
>
> -----Original Message-----
> From: Raymond Heckert [mailto:jnr@...]
> Sent: October 30, 2002 12:53 PM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: Re: [CAD_CAM_EDM_DRO] Free 3-D simulator
>
> Did anybody else get the advert from cncsimulator.com
> offering a free 'hobby' version of their 3-D program, as a
> download? Anybody try it yet? I'll foreward the ad sent to
> me to the list, if it's okay with 'Mom' & others on the
> list
>
> RayHex
>
>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 22
> Date: Wed, 30 Oct 2002 19:32:54 -0600
> From: "Raymond Heckert" <jnr@...>
> Subject: Re: Re: Ballscrew accuracy
>
> 'dspinnett', A leadscrew that's, say, 12.004" instead of
> 12.000" for "x" pitches would be, more than likely, 3.001
> at 3.000, 6.002 at 6.000, and 9.003 at 9.000. Very rarely,
> due to the mfg processes used, do the actual pitches vary
> back & forth. So, if you're lucky, you can use your
> software to compensate for the 0.00033 per inch
> discrepancy. Good Luck!
>
> RayHex
>
> ----------
>> From: dspinnett <dspinnett@...>
>>
>> My work envelope at one shot is rarely over 6" anyway.
> Would that
>> justify .001 screws and anti-backlash? I'd like to be
> accurate over
>> 6" within a couple thou if practical.
>>
>> Final goal is to make mini running engines, and probably
> a full size
>> engine too. The 'Griz' doesn't seem too bad overall -
> better quality
>> that the lathe anyway. (both are brand new).
>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 23
> Date: Wed, 30 Oct 2002 19:52:08 -0600
> From: "Raymond Heckert" <jnr@...>
> Subject: Re: CNC Flood Coolant?
>
> I was planning to use a windshield washer, in conjunction
> with a '555' timer circuit to give me adjustable spurts of
> coolant, instead of flooding, 'cause, some jobs, I have a
> wet-vac that I use to suck up chips as they're being cut...
> getting the swarf outa there keeps the finish better, and
> extends the life of the cutting edge. as far as being O.T.,
> I plan on using my M07 relay output for the intermittent,
> and M08 for continuous, with M09 shutting off both relays.
>
> RayHex
>
> ----------
>> From: Chris and Dee <brunoblazer@...>
>>
>> This may get axed as off topic - and if so I apologize
> and would
>> welcome people to respond off list, its just that I know
> of no other
>> group that would have good ideas.
>>
>> When I'm machining manually, I don't mind so much using
> the squirt
>> bottle for coolant supply. However, I'm not so sure
> that's going to
>> cut it when I get the CNC running so I wanted to setup an
> easily
>> controlled flood coolant system (but cheap - since I'm
> good like
>> that). I was going to try building one using a
> windshield washer
>> pump. You can basically get them next to free (if not
> free) at a
>> junkyard and they're easily controlled with a dc relay
> off the
>> parallel port. Has anybody tried this? Anybody know any
> good
>> reasons why this may not work? The only concern I have
> is duty
>> cycle, but if another pump is practically free, maybe its
> not an
>> issue. THoughts?
>>
>>
>> Addresses:
>> FAQ: http://www.ktmarketing.com/faq.html
>> FILES:
> http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
>> Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
>>
>> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
>> Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
>
>> List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com,
> wanliker@...
>> Moderator: jmelson@... timg@...
> [Moderator]
>> URL to this group:
> http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
>>
>> OFF Topic POSTS: General Machining
>> If you wish to post on unlimited OT subjects goto:
> aol://5863:126/rec.crafts.metalworking or go thru
> Google.com to reach it if you have trouble.
>> http://www.metalworking.com/news_servers.html
>>
>> http://groups.yahoo.com/group/jobshophomeshop I
> consider this to be a sister site to the CCED group, as
> many of the same members are there, for OT subjects, that
> are not allowed on the CCED list.
>>
>> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN
> BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT
> THIS.....NO EXCEPTIONS........
>> bill
>> List Mom
>> List Owner
>>
>>
>>
>> Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
>>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 24
> Date: Wed, 30 Oct 2002 18:15:16 -0800
> From: Jerry Kimberlin <kimberln@...>
> Subject: Re: CNC Flood Coolant?
>
> Raymond Heckert wrote:
>>
>> I was planning to use a windshield washer, in conjunction
>> with a '555' timer circuit to give me adjustable spurts of
>> coolant, instead of flooding,
>
> Ray, the pump on the windshield washer will burn up after about 5
> minutes of continuous use. They aren't built for anything close
> to continuous use.
>
> JerryK
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 25
> Date: Wed, 30 Oct 2002 21:18:22 EST
> From: cnc002@...
> Subject: Re: Toshiba laptop for CNC router
>
> In a message dated 10/30/02 8:38:15 AM Eastern Standard Time,
> jerry.jankura@... writes:
>
>
>> I don't know if this will help, but a google search for "T4500" DOS Download
>> turned up several URL's. One looked interesting, so I followed it.
>>
>> http://209.167.114.38/support/Tsbs/300/tsb0393.htm
>>
>> It pointed to a file - TSEP622.EXE - which contains the 'enhancements' for
>> the Toshiba notebooks. This might give you a lead as to what you're looking
>> for.
>>
>> Also, the DOS will be the same as any standard release. What's different
>> will be the drivers. If you know the kind of video board, etc. in the
>> machine, you can search google for those boards, and can often download the
>> drivers from the manufacturer.
>>
>> Hope this helps....
>>
>> -- Jerry
>>
>>
>>
>
> I must have missed the original post for this subject. Is this notebook for
> an Italian machine by any chance? E-mail me off list, I may be able to help
> if you are looking for the DOS software to communicate with the router.
>
>
>
> Regards,
>
> Randy Abernathy
> 4626 Old Stilesboro Road
> Acworth, GA 30101
> Phone / Fax: 770-974-5295
> E-mail: cnc002@...
> We service, install and repair industrial woodworking machinery
> Specializing in SCM / SCMI CNC Panel Saws and Routers
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
>
>
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