Author Topic: Slightly odd behavior when cutting triangles  (Read 963 times)

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Re: Slightly odd behavior when cutting triangles
« Reply #15 on: September 08, 2016, 02:07:21 PM »
Thanks. I can assure you that is not what I get. Looking for camera but it is among the missing.

Then there is something with your frame setup that is not correct. Belts too loose or stepper motor screws not tight. Stepper belt pulley not tight. I had a similar problem a couple of months ago and I took all my belts off and manually turned all my steppers (disconnected the wires first). I found my left Y axis stepper did not turn smoothly at all. I replaced it and that solved the problem.
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ggallant571

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Re: Slightly odd behavior when cutting triangles
« Reply #16 on: September 08, 2016, 04:33:27 PM »
First - thanks for confirming that the problem is at my end. Today I played with acceleration and firmware. No significant difference. I am currently leaning towards aninadequate stepper drive board.
Noticed that increasing the current limits on the A4988 seem to increase the current draw on the Nano 5V regulator, getting quite hot. This has all the characteristics of a simple problem that is  eluding me.
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Re: Slightly odd behavior when cutting triangles
« Reply #17 on: September 08, 2016, 04:40:31 PM »
Here are my Grbl settings:

Grbl settings commands sent:
$$

$0=10 (step pulse, usec)
$1=25 (step idle delay, msec)
$2=2 (step port invert mask:00000010)
$3=1 (dir port invert mask:00000001)
$4=0 (step enable invert, bool)
$5=0 (limit pins invert, bool)
$6=0 (probe pin invert, bool)
$10=3 (status report mask:00000011)
$11=3.000 (junction deviation, mm)
$12=0.020 (arc tolerance, mm)
$13=0 (report inches, bool)
$20=0 (soft limits, bool)
$21=0 (hard limits, bool)
$22=0 (homing cycle, bool)
$23=0 (homing dir invert mask:00000000)
$24=25.000 (homing feed, mm/min)
$25=500.000 (homing seek, mm/min)
$26=250 (homing debounce, msec)
$27=1.000 (homing pull-off, mm)
$100=80.000 (x, step/mm)
$101=80.000 (y, step/mm)
$102=80.000 (z, step/mm)
$110=4000.000 (x max rate, mm/min)
$111=4000.000 (y max rate, mm/min)
$112=500.000 (z max rate, mm/min)
$120=400.000 (x accel, mm/sec^2)
$121=400.000 (y accel, mm/sec^2)
$122=400.000 (z accel, mm/sec^2)
$130=300.000 (x max travel, mm)
$131=300.000 (y max travel, mm)
$132=200.000 (z max travel, mm)
ok
Admin -- Ralph -- support @ BenCutLaser dot us
http://www.BenCutLaser.us/BenCutLaserSetup1.8.4a.exe.zip
BCL Paid license: $39.95
via Paypal to bclpp@primemail.com