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Search: Posts Made By: KevinL
Forum: MechMates already cutting Sun 01 March 2009, 10:12
Replies: 53
Views: 52,157
Posted By KevinL
No problem, but I make no claims at all that this...

No problem, but I make no claims at all that this is even remotely optimized.

All axes Steps per are set at 3666.93. Velocity and acceleration on X and Y are 300 and 20, and Z is at 120 and 4.
...
Forum: MechMates already cutting Fri 27 February 2009, 19:26
Replies: 53
Views: 52,157
Posted By KevinL
I'm using the Oriental Motors PK296A2A-SG7.2....

I'm using the Oriental Motors PK296A2A-SG7.2. There is more friction with the linear bearings simply because there is more bearing area, but the motors have no problem moving the gantry or y-car. I...
Forum: MechMates already cutting Sun 22 February 2009, 16:54
Replies: 53
Views: 52,157
Posted By KevinL
I think I actually started on it over the...

I think I actually started on it over the Christmas holiday, so I'd say Dec. 20th 2007. My table size is actually 100" by 56" which would give the 4'x8' cutting area, but I am currently limited to...
Forum: MechMates already cutting Wed 18 February 2009, 05:08
Replies: 53
Views: 52,157
Posted By KevinL
Thanks. I think the rafters (floor trusses in...

Thanks. I think the rafters (floor trusses in this case) are an optical illusion. There is hopefully enough clearance to get a vacuum hose in that space. I'm pretty happy with the Milwaukee, this is...
Forum: MechMates already cutting Tue 17 February 2009, 20:13
Replies: 53
Views: 52,157
Posted By KevinL
Bolted Mechmate in Kansas now cutting

I might get in trouble for my excess use of aluminum, but hey, it's easy to work with and I had it laying around. Some updated pictures and the proof that it's cutting. Still need to tidy up some...
Forum: Troubleshooting Wed 11 February 2009, 17:07
Replies: 24
Views: 21,189
Posted By KevinL
I didn't know that was possible. I knew you could...

I didn't know that was possible. I knew you could change the priority of a process, but that doesn't stick, you have to remember to do it each time. Or maybe you could write a script. I'll check the...
Forum: Troubleshooting Tue 10 February 2009, 06:24
Replies: 24
Views: 21,189
Posted By KevinL
All motors run fine then start slipping

Nice bit of detective work Gerald. I'm not sure if this is the exact problem, but if not, it is something related, I'm sure. Last night I swapped out the (trusty?) IBM computer for my self assembled...
Forum: Troubleshooting Mon 09 February 2009, 11:19
Replies: 24
Views: 21,189
Posted By KevinL
Thanks for the suggestions Mike. Yes, I am...

Thanks for the suggestions Mike. Yes, I am talking one continuous move, and I am controlling the move with the jog or shuttle pop up (Tab in Mach 3). The computer was a $200 surplus piece, so it...
Forum: Troubleshooting Mon 09 February 2009, 09:09
Replies: 24
Views: 21,189
Posted By KevinL
I'm not in front of the machine right now, but...

I'm not in front of the machine right now, but that 3666.93 value seems familiar, so I think that's what I've got keyed in. Yes, the DP is 20, but both the grinding noise and ticking occur even with...
Forum: Troubleshooting Mon 09 February 2009, 06:07
Replies: 24
Views: 21,189
Posted By KevinL
I have the Oriental PK296A2A-SG7.2 motors and a...

I have the Oriental PK296A2A-SG7.2 motors and a 25 tooth pinion. Which, if my math is right, should only require about 9200 pulses/second.

The first field in Motor Tuning says "Steps Per" .......
Forum: Troubleshooting Mon 09 February 2009, 05:01
Replies: 24
Views: 21,189
Posted By KevinL
I have run the Mach test program. I even ran it...

I have run the Mach test program. I even ran it up to 100,000 pulses, and was still getting excellent response according to the test program. I currently have it set at the recommended 25,000 pulses....
Forum: Troubleshooting Sun 08 February 2009, 20:10
Replies: 24
Views: 21,189
Posted By KevinL
I bought the computer at surplus, but it is an...

I bought the computer at surplus, but it is an IBM 6221 which is dual CPU 2.6 GHZ, so it should be overkill if anything. I don't think any other processes are starting, but I can check for that....
Forum: Troubleshooting Sun 08 February 2009, 18:01
Replies: 24
Views: 21,189
Posted By KevinL
All motors run fine then start chattering and loosing steps - interrupt in the PC

I'm stumped. I thought I had a grounding problem, but I've rechecked all the grounds and everything looks good. The symptoms are:

1) If I go very slow, there seem to be no problems, although I do...
Forum: 60. Wiring & Cable Management Thu 15 January 2009, 06:31
Replies: 4
Views: 11,970
Posted By KevinL
Thanks Marc and Mike. So it sounds like having a...

Thanks Marc and Mike. So it sounds like having a short length of unshielded cable not only will not hurt anything, but is preferred anyway.
Forum: 60. Wiring & Cable Management Wed 14 January 2009, 16:22
Replies: 4
Views: 11,970
Posted By KevinL
Connecting Shielded Cable to motors

Is there a preferred approach to connecting the shielded cable to the motors? It appears that Gerald has plugs, but I can't tell how the plugs are tied into the motor. The options seem to be 1) open...
Forum: 10. Base Table Fri 02 January 2009, 10:32
Replies: 30
Views: 38,922
Posted By KevinL
My table is also bolted together for easy...

My table is also bolted together for easy trasport. A couple hints on the way I did it might help. As was mentioned, you still need to weld flanges on the different sections to allow bolting...
Forum: MechMates already cutting Thu 25 December 2008, 16:50
Replies: 53
Views: 52,157
Posted By KevinL
Wow, Gerald has got a memory like a steel trap!...

Wow, Gerald has got a memory like a steel trap! Yes, we are in Maragogi. About 120 kilometers south of Recife. I´m curious, the guys from Brasil, what kinds of things are you going to be cutting with...
Forum: MechMates already cutting Wed 24 December 2008, 12:45
Replies: 53
Views: 52,157
Posted By KevinL
Thanks Jonny. I am on vacation in Brazil right...

Thanks Jonny. I am on vacation in Brazil right now. Will post some more pictures when \i get back. I hope to be cutting within a week or two after returning. Don´t tell my wife that I am suffering...
Forum: MechMates already cutting Tue 23 December 2008, 06:09
Replies: 53
Views: 52,157
Posted By KevinL
I´ve had a couple guys express interest in having...

I´ve had a couple guys express interest in having me cut foam molds for race car and custom car body panels. Plus, the incremental cost was insignificant. As I´m set up now, my z travel is only about...
Forum: 50. Toolheads Fri 12 December 2008, 08:02
Replies: 11
Views: 13,379
Posted By KevinL
Thanks, that's area is actually our ultimate...

Thanks, that's area is actually our ultimate destination. her parents have a place in Maragogi.
Forum: 40. Z-Slide Thu 11 December 2008, 22:58
Replies: 54
Views: 79,949
Posted By KevinL
That looks like it contains a "constant force...

That looks like it contains a "constant force spring" that I referenced in an earlier post. I think this is an excellent solution, but my concern was that the springs I found were only good for...
Forum: 50. Toolheads Thu 11 December 2008, 22:45
Replies: 11
Views: 13,379
Posted By KevinL
Sounds interesting. As you get information on the...

Sounds interesting. As you get information on the new spindles being developed, let us know.

My wife and I usually fly through Sao Paulo to Recife, but both American and Delta now fly direct, so...
Forum: 50. Toolheads Wed 10 December 2008, 11:44
Replies: 11
Views: 13,379
Posted By KevinL
Hi Fabio, My interest would probably be more...

Hi Fabio,

My interest would probably be more in the smaller spindle. I believe you said you paid $850 for that model in your original post. And knowing how bad the exchange rate was back then, and...
Forum: 50. Toolheads Tue 09 December 2008, 12:08
Replies: 11
Views: 13,379
Posted By KevinL
Brazilian Spindle (Tecmaf)

There's a thread on here talking about Chinese spindles, so I thought I'd start one asking about Brazilian spindles. I know there are several Brazilian builders on here, and I think Fabio is using a...
Forum: 40. Z-Slide Wed 03 December 2008, 21:02
Replies: 54
Views: 79,949
Posted By KevinL
Gerald, In the original post to this thread...

Gerald,

In the original post to this thread you mention a "wire coil spring" approach. I don't see any more dicussion of that. I've been looking at alternatives to multiple gas springs since I...
Showing results 1 to 25 of 37

 
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