Re: Software

Thanks Bubba;
I think I'm on the right track and with the help of this group, it
should be quite benificial (and even fun). I received some info on
my servos (which I purchased on ebay) and was quite disappointed (I
think). The servos are obsolete and are electro-craft model e586's.
I have 5 of them. The dwawing I received from the factory list them
as "servo tachs" and have a built in tachometer. The specs on the
servo is 30V DC with a no load speed of 5700 RPM. The no load
current at rated voltage is .65 amps. Armiture resistance (dynamic)
is 1.00 ohms min to 1.25 ohms max when checked at 4 amps. Is this
enough information to figure out the torque of these things??? If
they won't push the mill, maybe I'll build a router later with them.
I'm looking forward to your spread sheet and hope to learn from it.
I just downloaded the information from Gecko on power supplys so my
next project will be to source the parts. Any recommendations from
the baord. I'd much rather purchase from a group member and keep the
money at home!
Thanks in advance.
billyjack.






--- In CAD_CAM_EDM_DRO@yahoogroups.com, Art Eckstein
<a_eckstein@b...> wrote:

> BillyJack,
> What I have found to work for ME, is SheetCam as my cam processor

(2 1/2D)

> and presently sells for $150 or you can download Ace converter at
> www.dak.com for free. In either case, these programs use a dxf file

as the

> input. For the cnc controller I use TurboCnc which when registered

cost $60

> (AND you get the source code!) or you can go the windows route and

get the

> Mach series of controller. Either of these programs can run g code

files

> without being registered. In the case of TurboCnc, it is unlimited

file

> size and I believe Mach is limited to 1000 lines of code (from

memory and

> please don't hold me to this one)
>
> As far as the size of the servos go, a little more information

would be

> helpful to "see" if they are possibly to small. I have set up a

spread

> sheet based on the many formulas that Mariss has posted several

times and

> based on the voltage and rpm, can give a "decent analysis" of what

you

> might be able to expect.
>
> Now, at the risk of starting a flame war, I know many people brag

or insist

> that you need to have super high rapid speeds, but lets put this in
> perspective. IF you are operating a "manual" mill, how fast are the

rapids

> - 200 IPM? I doubt it as you would have to crank that handle real

fast. The

> point being is, if you can tolerate "slow" speeds, even a rather

small

> servo can be geared to handle the forces necessary. This way, you

can get

> started with the small servos and later (with out "buying another

wife")

> and later replace the existing units with larger ones depending on

your

> power supply.
>
>
>
> At 04:18 PM 6/15/2005, you wrote:
> >I just recently ordered a few of the parts requred to convert a
> >mill/drill to cnc for use in my custom 1911 handgun hobby/business.
> >I recently ordered a lathemaster mill (after reading a lot of

posts),

> >gecko servo drives, a breakout board, and have on hand some servos
> >(reliance (most likely too small)) and USdigital encoders to instll
> >on them. I still need to source a power supply and the software to
> >use. I am a cnc beginner but have a working knowledge of both
> >mechanics, electronics as well as computer skills. I think the
> >project will be fun and I will learn a great deal about cnc. I

plan

> >to take advantage and learn from all the knowledge available on

this

> >site.
> >My first (and I'm sure not last) question is, what would you
> >recommend for software to get me started?? Of course, cost is a

big

> >factor at this stage, at least until I get the mill paid off. I
> >can't afford to pay off another wife!!!
> >I think I need cad software (I have turbocad version 6.5 - old),

cam

> >software and machine controlling software. I've glanced at mach 2
> >for control but the other required programs, I'm not quite sure of.
> >Any help will be appreciated. I hope to receive the mill in the

next

> >3 weeks (they are on vacation this week) and start construction
> >shortly there after.
> >Have a good day and be safe.
> >billyjack
> >
> >
> >
> >
> >Addresses:
> >FAQ: http://www.ktmarketing.com/faq.html
> >FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
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wanliker@a...,

> >timg@k...
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> >davemucha@j... [Moderators]
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> >
> >OFF Topic POSTS: General Machining
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Google.com to

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> >
> >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

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> >
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EXCEPTIONS........

> >bill
> >List Mom
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> >
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> >
>
> Bubba
>
> OLDER THAN DIRT
> Country Bubba
> (Actually the inventor of Country and Bubba)
> In God We Trust
>
> LaGrange, GA
>
> http://bellsouthpwp.net/A/r/Arts_home_page/cnc/
>
> [Non-text portions of this message have been removed]