Search found 100 matches
- Thu Nov 02, 2017 5:01 am
- Forum: Using the LitePlacer
- Topic: Backlash and Slack Compensation [SOLVED]
- Replies: 50
- Views: 47884
Re: Backlash and Slack Compensation
But talking about belts, any chance that there is looseness at the belt attachment? Far fetched, but could it be that where the belt is fixed there is any play? Maybe the tear drop shape is changing or there is a belt tooth that happens to align on a plate edge or something like that? Tooth sits on...
- Thu Oct 26, 2017 9:00 pm
- Forum: Using the LitePlacer
- Topic: Backlash and Slack Compensation [SOLVED]
- Replies: 50
- Views: 47884
Re: Backlash and Slack Compensation
I suggest loosing the belt and checking that the gantry moves easily and all idler wheels roll without friction Checked, no issues. When putting the belt back on, don’t put it very tight. I’m thinking that maybe a tight belt is flexing something? Tried at a few levels of tightness (apart from the o...
- Fri Oct 20, 2017 11:08 pm
- Forum: Using the LitePlacer
- Topic: Backlash and Slack Compensation [SOLVED]
- Replies: 50
- Views: 47884
Re: Backlash and Slack Compensation
More information on this issue. I've compiled the Liteplacer code and changed Slack Compensation from 0.4mm to 1mm, 5mm, 10mm and 20mm Issue is reduced at 10mm, and completely gone at 20mm of Slack Compensation. I.E. It looks like it's backlash, however it's a considerable about of backlash, and 20m...
- Thu Oct 19, 2017 6:54 pm
- Forum: Using the LitePlacer
- Topic: Backlash and Slack Compensation [SOLVED]
- Replies: 50
- Views: 47884
Re: Backlash and Slack Compensation
Here's a video of the issue. Move right and back to center x 2 by 100mm (note it returns precisely to the starting position) Move left and back to center x 1 (note it's now off by approx -0.1mm) Move left and back to center x 1 (note, still off by approx -0.1mm) Move right and back to center (note i...
- Thu Oct 19, 2017 6:27 pm
- Forum: Using the LitePlacer
- Topic: Backlash and Slack Compensation [SOLVED]
- Replies: 50
- Views: 47884
Re: Backlash and Slack Compensation
-do you see any perioidity in the error? You are looking for errors for 40mm period (pulley revolution) or approx. 72mm (revolution of V wheels, measured by eye). I've tried moving 40mm and 72mm, the 0.1mm error still persists. Also, thinking about it, as the error is apparent at the center point, ...
- Thu Oct 19, 2017 4:04 pm
- Forum: Using the LitePlacer
- Topic: Backlash and Slack Compensation [SOLVED]
- Replies: 50
- Views: 47884
Re: Backlash and Slack Compensation
Do fix the camera cable, so that machine moves don't cause the (possibly loose) camera electronics to shift inside the chassis. That is all that I can think of right away. Assuming this doesn't fix the issue: Camera cable is attached at a few places, and doesn't move unless touched. Camera module i...
- Thu Oct 19, 2017 5:13 am
- Forum: Using the LitePlacer
- Topic: Backlash and Slack Compensation [SOLVED]
- Replies: 50
- Views: 47884
Backlash and Slack Compensation [SOLVED]
I'm having an issue with Backlash on the machine, so I'm considering just the X axis for now First, I've changed the acceleration to 1 and the speed to 1, and small moves speed to 10 to reduce camera movement from inside the casing due to inertia etc., as that's another issue that was compounding th...
- Thu Oct 19, 2017 2:36 am
- Forum: Using the LitePlacer
- Topic: Bad data in warning threshold
- Replies: 4
- Views: 3253
Re: Bad data in warning threshold
Thanks.
Also, that box gets cleared out on every restart of the app
Also, that box gets cleared out on every restart of the app
- Mon Oct 16, 2017 9:57 pm
- Forum: Using the LitePlacer
- Topic: Bad data in warning threshold
- Replies: 4
- Views: 3253
Bad data in warning threshold
I'm getting a Bad data in warning threshold error during nozzle calibration, however it doesn't say calibrationfailed. If this an issue or not? Thanks: Measuring nozzle, min. size 0.3, max. size0.5 CNC_A_m, a: 0 -- zero A movement command -- CNC_A_m, a: 22.5 ==> {"gc":"G0 A22.5"}...
- Sat May 13, 2017 5:07 am
- Forum: Building the LitePlacer
- Topic: How to test/run load and unload of nozzles
- Replies: 3
- Views: 3353
Re: How to test/run load and unload of nozzles
A couple of things I noticed. 1. If you have your stepper current set too high (excessive whinning when moving, whinning when stopped), then lower it. Lower stepper current means less chance of damage to the machine if you crash. Speed is also a factor here, so lower it whilst setting up. Based on m...