|
Post by macdrum on May 15, 2019 19:13:42 GMT
I just finished adjusting the voltage on all three axis circuits and yesterday the Carve King ran very well.
This morning I tried to continue to use the machine and every time I brought the head to Zero, it found different locations. Sometimes it WAS zeroed in but 1 out of 5 times it missed it mark. Then on my last try. I hit the home button. The Z axis dropped below the work and headed for home causing the cutter to drag along the work.
The voltage is set at .64v - .65v
The V circuit board, I get no reading at all.
Any input would be great.
Thank you very much
|
|
|
Post by sternman318 on May 16, 2019 21:48:41 GMT
I just finished adjusting the voltage on all three axis circuits and yesterday the Carve King ran very well. This morning I tried to continue to use the machine and every time I brought the head to Zero, it found different locations. Sometimes it WAS zeroed in but 1 out of 5 times it missed it mark. Then on my last try. I hit the home button. The Z axis dropped below the work and headed for home causing the cutter to drag along the work. The voltage is set at .64v - .65v The V circuit board, I get no reading at all. Any input would be great. Thank you very much How did you set zero? Are you using homing ($H)? This requires homing switches
|
|
|
Post by macdrum on May 17, 2019 14:49:39 GMT
I do have homing switches on the machine for xyz. I jog to the location for zero coordinates for each axis and on UGS press each axis to zero state. Then I press home machine. Then when I press return to zero the head jogs to working coordinates. The problem I'm have is the Z axis is not returning to zero. It's either too high or below the work.
I'm still trying to figure it out.
Thank you
|
|
|
Post by Bruce on May 17, 2019 16:10:44 GMT
FYI: If you jog any of the axis close to the end of the rail and you hear the motor make a grinding sound you have lost position and you will need to re-home the machine. When jogging the Z axis it is easy to hit the top of the rails and lose position.
|
|
|
Post by Derek the Admin on May 17, 2019 16:43:38 GMT
I replied to your email about this macdrum. Just to let you know.
Regards Derek
|
|
rowiac
Full Member
Posts: 230
Location: California
Machine: M3
|
Post by rowiac on May 17, 2019 20:28:20 GMT
I do have homing switches on the machine for xyz. I jog to the location for zero coordinates for each axis and on UGS press each axis to zero state. Then I press home machine. Then when I press return to zero the head jogs to working coordinates. The problem I'm have is the Z axis is not returning to zero. It's either too high or below the work. I'm still trying to figure it out. Thank you Just to be sure...you should home the machine first before setting your zero coordinates. That will make sure that if for some reason you have lost motor steps previously, everything will be good to go.
|
|
|
Post by macdrum on May 19, 2019 14:38:50 GMT
Thank you everyone for the input/advise. Derek had me run some test and I believe it's not electrical. To that end I am ordering new wheels for the Z axis and will recalibrate them and see if that helps. I will respond and let everyone know the outcome.
Thank you
|
|
rcferguson
Full Member
Posts: 182
Machine: Carve King
|
Post by rcferguson on May 24, 2019 18:18:09 GMT
I had similar trouble at one point, and a couple possibilities come to mind.
I originally had my router up too high in the holder, so when the Z dropped to cut a paice that was low on the table the Z axis was at or near the bottom limit of travel. As the leadscrew binds up near the limit the depths would be inconsistent. Also, if you get chips building up on that bottom Z plate it may also interfere with travel when you are near the limit.
The other issue was when I was tying to cut something too high, again near the limit of travel, but this time at the top of the Z axis. The default retract height in Fusion 360 seems to be 10 mm, but sometimes I didn't have that much travel available. The first thing the head does is try to retract the tool to the retract height before moving, and if your retract height is above the top Z limit the motor is going to bind and miss steps, then it will think it is higher than it is, so as a result will drop lower than intended when it goes to cut.
Hope this helps.
|
|