Tree Mill Journeyman 300
Posted by
Dan Mauch
on 2005-02-10 10:34:37 UTC
When I cleaned up my $750 Tree mill Journeyman 300 I was concerned that it
may have quite a bit of wear since it came out of one of GE production
plants. It probably had at least 35,000 hours on it. But when I checked the
ways I found .001 wear on the home side of the X axis and surprisingly only
.0002 on the Y ways. But that is a very arrangement which is why I bought
the Tree mill in the first place.
My Tree mill uses a bijur lube system for the XY axis. The quill and spindle
use a gear driven pump which makes sure the quill and the spindle gets
properly lube.
Last I jury rigged three Gecko G320's and set up using 3 80VDc 20A power
supplies in parallel to run the 3/4HP 130VDC servo motors. Using Mach2 I can
get 96 IPM out of the XYZ axis and probably more after I tune it.
I made my first cut with this temporary set up and was impressed with the
rigidity of the machine and how nice it ran. really nice to have a 5 HP
spindle motor.
I still plan to use the CNC Teknix 200V 40A continuous servo amps but I am
having a problem with the PID filter. The program for the I and D needs to
be adjusted as I can't get the speed out of the servo amps without them
faulting. I also have to use the 12 bit error amp setup in stead of the 8
bit which I prefer. The guys at CNCTEKNIX are going to email me a revised
file so I can reprogram the Cypress PSOC chip. In the meantime the Geckos
will do just fine.
Dan
Camtronics Inc
may have quite a bit of wear since it came out of one of GE production
plants. It probably had at least 35,000 hours on it. But when I checked the
ways I found .001 wear on the home side of the X axis and surprisingly only
.0002 on the Y ways. But that is a very arrangement which is why I bought
the Tree mill in the first place.
My Tree mill uses a bijur lube system for the XY axis. The quill and spindle
use a gear driven pump which makes sure the quill and the spindle gets
properly lube.
Last I jury rigged three Gecko G320's and set up using 3 80VDc 20A power
supplies in parallel to run the 3/4HP 130VDC servo motors. Using Mach2 I can
get 96 IPM out of the XYZ axis and probably more after I tune it.
I made my first cut with this temporary set up and was impressed with the
rigidity of the machine and how nice it ran. really nice to have a 5 HP
spindle motor.
I still plan to use the CNC Teknix 200V 40A continuous servo amps but I am
having a problem with the PID filter. The program for the I and D needs to
be adjusted as I can't get the speed out of the servo amps without them
faulting. I also have to use the 12 bit error amp setup in stead of the 8
bit which I prefer. The guys at CNCTEKNIX are going to email me a revised
file so I can reprogram the Cypress PSOC chip. In the meantime the Geckos
will do just fine.
Dan
Camtronics Inc
----- Original Message -----
From: "Thomas Powell" <tppjr@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Thursday, February 10, 2005 9:14 AM
Subject: Re: [CAD_CAM_EDM_DRO] Bridgeport way wear,lubrication fix
>
> Speaking of which. The tubing used with those manifolds is 1/8" OD but
> has
> a teeny, tinny ID. Anybody know where I can get some of this? I will be
> setting up a oilier for my RF-45 conversion real soon. I have the
> manifold
> but no tubing. All I can seem to find has a pretty big ID compared to the
> OEM Bridgeport stuff.
>
> Thanks,
>
> Thomas
>
>
> ----- Original Message -----
> From: "R Rogers" <rogersmach@...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Thursday, February 10, 2005 6:26 AM
> Subject: Re: [CAD_CAM_EDM_DRO] Bridgeport way wear,lubrication fix
>
>
>>
>> Way wear is a concern with continuous duty machines especially under CNC
>> control. They just move more. On my B'ports, the amount of lubrication
>> from the Bijur oiler did not seem sufficient. As I've noticed with many
>> B'ports over the years. There is a manifold under the saddle that has
>> filters and metering valves, usually eight of them. And three more
>> located
>> on the knee. The look like a small fitting for the plastic tubing. I took
>> all mine out and drilled straight thru them in the lathe. I'm not sure if
>> this is the proper thing to do. But, my machines get plenty of way lube
>> now. I'd rather have too much than not enough. The metering valve/filters
>> become restricted over time. I think the idea was to pull the lubrication
>> lever and it kept the oil weeping all day. When a way is dry, I want oil
>> and plenty of it there immediately.
>>
>> Ron
>>
>> Polaraligned <polaraligned@...> wrote:
>>
>>
>> With all the talk about anti-backlash ball screws, and ground vs.
>> rolled leadscrews, Does anyone have problems with way wear when
>> CNC'ing? After all, most of these machines are 30+ years old and
>> have been used almost daily by some machinist making a living.
>>
>>
>> Scott
>>
>>
>>
>>
>>
>>
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>> If you wish to post on unlimited OT subjects goto:
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>> 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
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>> Yahoo! Groups Links
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>
>
> 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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> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
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> timg@...
> Moderator: pentam@... indigo_red@... davemucha@...
> [Moderators]
> 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
>
>
> Yahoo! Groups Links
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