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Forum: Troubleshooting Fri 29 May 2015, 11:05
Replies: 49
Views: 60,285
Posted By Rocky Mountain Teardrops
SOLVED Needed to tune the drives to the...

SOLVED

Needed to tune the drives to the motors.

They always sounded "okay", but I tuned them better then ran a X, Y, & XY rapid test at 300ipm rapid, 25ips/s acceleration.
(end to end ten...
Forum: Troubleshooting Thu 28 May 2015, 20:04
Replies: 49
Views: 60,285
Posted By Rocky Mountain Teardrops
I left as much shielding as possible. (just...

I left as much shielding as possible. (just enough to get the separate wires to their terminations)


Going to set up the "back and forth" test tomorrow.
Thanks for your help.

Lee
Forum: Troubleshooting Thu 28 May 2015, 19:38
Replies: 49
Views: 60,285
Posted By Rocky Mountain Teardrops
Yes. Grounded on one end only. (main Gecko...

Yes. Grounded on one end only. (main Gecko mounting plate)
Forum: Troubleshooting Thu 28 May 2015, 19:33
Replies: 49
Views: 60,285
Posted By Rocky Mountain Teardrops
Same here.

Same here.
Forum: Troubleshooting Thu 28 May 2015, 19:05
Replies: 49
Views: 60,285
Posted By Rocky Mountain Teardrops
From what I've been reading: 1. Bad parallel...

From what I've been reading:
1. Bad parallel cable (too much resistance.
2. Not enough memory / processing power in computer.
3. Grounding ?

Does anybody know if the Gecko 203V work Active High...
Forum: Troubleshooting Thu 28 May 2015, 18:19
Replies: 49
Views: 60,285
Posted By Rocky Mountain Teardrops
Fairly certain I'm losing steps. Pulled the...

Fairly certain I'm losing steps.

Pulled the gantry against the stops and zeroed the machine.
Ran my hole drill test at 200ipm, 20ips/s acceleration. (approx 120holes drilled)

When I ran the...
Forum: Troubleshooting Mon 25 May 2015, 17:13
Replies: 49
Views: 60,285
Posted By Rocky Mountain Teardrops
But wouldn't loss steps show up in both...

But wouldn't loss steps show up in both directions in my criss-cross drilling pattern?
Forum: Troubleshooting Mon 25 May 2015, 16:21
Replies: 49
Views: 60,285
Posted By Rocky Mountain Teardrops
That's a good idea. I've got some Loctite 640...

That's a good idea. I've got some Loctite 640 sleeve retainer.
I'll add that to the shafts. I've read good things about the strength of that stuff.

My rapid/cutting speed is only 200 ipm, with...
Forum: Troubleshooting Sun 24 May 2015, 16:48
Replies: 49
Views: 60,285
Posted By Rocky Mountain Teardrops
Ran my "hole test" pattern. Rows of holes in...

Ran my "hole test" pattern.
Rows of holes in patterns to run the machine all directions from hole to hole.

Results are not good.

Vast majority of holes are offset in the X axis with some...
Forum: Troubleshooting Sun 24 May 2015, 14:51
Replies: 49
Views: 60,285
Posted By Rocky Mountain Teardrops
Ahh. That makes sense. I was measuring...

Ahh.
That makes sense. I was measuring repeatability.

Backlash now measures:
One side of X axis measures .008". The other X is .009"
Y axis is .007"

This is way less than what my parts are...
Forum: Troubleshooting Sat 23 May 2015, 20:22
Replies: 49
Views: 60,285
Posted By Rocky Mountain Teardrops
Holes only seem to be off in the X axis, and...

Holes only seem to be off in the X axis, and consistently the same direction.

Mach3 says my(steps per inch) at 3055.75 & 200 ipm (can be higher)
Kernel speed at 25K (24,998)
Mach3 driver test...
Forum: Troubleshooting Sat 23 May 2015, 18:51
Replies: 49
Views: 60,285
Posted By Rocky Mountain Teardrops
Spoke too soon... Can't get repeatability. ...

Spoke too soon...
Can't get repeatability.
Drilling a through hole (.250", .755" deep)
Then coming back over, using the same geometry, drilling a .302" hole .650" deep.
Holes do not...
Forum: Troubleshooting Tue 19 May 2015, 13:40
Replies: 49
Views: 60,285
Posted By Rocky Mountain Teardrops
Problem solved! Thank you all. Steps...

Problem solved!
Thank you all.

Steps taken.
1. Shimmed motors to make sure the gears have perfect contact with rack.
2. Adjusted motor pivot bolts (mine were too tight, not allowing the motors...
Forum: Troubleshooting Sat 16 May 2015, 18:45
Replies: 49
Views: 60,285
Posted By Rocky Mountain Teardrops
Well, now I'm not sure. :o The green "LED" box...

Well, now I'm not sure. :o
The green "LED" box on the main screen tab "Settings" is not active.
But the check box on "Config>General Config" is checked.
So I guess I do have constant velocity...
Forum: Troubleshooting Sat 16 May 2015, 15:17
Replies: 49
Views: 60,285
Posted By Rocky Mountain Teardrops
Okay, I think this shows *something* better. ...

Okay, I think this shows *something* better.
Pocket program with Sharpie marker.
100 ipm

Pay special attention to the line of shudders at 6:30 and 12:30
(ignore the line at 3:00, that is the...
Forum: Troubleshooting Sat 16 May 2015, 13:01
Replies: 49
Views: 60,285
Posted By Rocky Mountain Teardrops
Here's another test from today. Eight total...

Here's another test from today.
Eight total circles, two showed signs of irregularity.

One in conventional (clockwise) and one in climb.
Ignore the inner circle, there was a groove in the...
Forum: Troubleshooting Sat 16 May 2015, 10:13
Replies: 49
Views: 60,285
Posted By Rocky Mountain Teardrops
CV is off (has been always) From what reading I...

CV is off (has been always)
From what reading I have done, 100ipm does not seem too fast...
Calculations show I'm making lots of dust instead of chips.


You are exactly right, flattened circles...
Forum: Troubleshooting Fri 15 May 2015, 16:48
Replies: 49
Views: 60,285
Posted By Rocky Mountain Teardrops
Nils, The motors are very new. I would estimate...

Nils,
The motors are very new. I would estimate less than 100 hrs.
I don't know what is normal for these motors. But .030" in the gantry seems like a lot, and I certainly cant get an accurate...
Forum: Troubleshooting Fri 15 May 2015, 10:56
Replies: 49
Views: 60,285
Posted By Rocky Mountain Teardrops
ARG! Can't get the edit to submit Specs:...

ARG! Can't get the edit to submit


Specs:
Standard welded table base (per Gerald's plans)
Oriental motors 7.2 geared
Motors have two flats ground on shafts with two setscrews each
Porter...
Forum: Troubleshooting Fri 15 May 2015, 10:19
Replies: 49
Views: 60,285
Posted By Rocky Mountain Teardrops
Cutting errors - slop in motors?

Hello All,
Having some trouble with cutting errors in my Mechmate.

Specs: Standard welded base
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