Y-Axis can't find zero right
Y-Axis can't find zero right
Hi all,
for a few days now I'm having trouble with my Y-Axis finding zero and or skipping steps with the result in shifting in x and y.
I made a video in this video every stop means zero on Y-Axis. http://youtu.be/S3VjHBG3UqY
Any ideas what could course that?
The link for the factory file. http://www.printashape.com/makergear/Sp ... Holder.rar
And below the G-code.
for a few days now I'm having trouble with my Y-Axis finding zero and or skipping steps with the result in shifting in x and y.
I made a video in this video every stop means zero on Y-Axis. http://youtu.be/S3VjHBG3UqY
Any ideas what could course that?
The link for the factory file. http://www.printashape.com/makergear/Sp ... Holder.rar
And below the G-code.
Re: Y-Axis can't find zero right
Why, in your video, does it travel to max Y before homing? Are you doing that with the jog controls, or is it doing that by itself?
Re: Y-Axis can't find zero right
The sequence is a macro it makes the Y_Axis home zero then Y+255 and back to Y home zero. (The home is commanded with G28 Y0.)jsc wrote:Why, in your video, does it travel to max Y before homing? Are you doing that with the jog controls, or is it doing that by itself?
I need to move Y in a + distance in order to make it visible for everybody, How far I travel makes no difference.
Michael
Re: Y-Axis can't find zero right
I'm not sure what I'm supposed to be looking for in the video, I don't see anything obviously wrong. Some of the more mechanically minded members might be more helpful, but to me it sounds like your Y axis is skipping steps? Have you checked the set screw on the y motor pulley? It can come loose through vibration.
Re: Y-Axis can't find zero right
You need to concentrate on Y- movement every time the machine stops it thinks it is on zero.
Sometimes when I move back from Y+ 250 ish it takes 3-4 time hitting the home Y button before I actually hit the switch.
I tried to catch it on video but it didn't do it with camara.
Sometimes when I move back from Y+ 250 ish it takes 3-4 time hitting the home Y button before I actually hit the switch.
I tried to catch it on video but it didn't do it with camara.
Re: Y-Axis can't find zero right
You are not making full contact with the end switch hence the bouncing. There is a slot in the spider mount plate that allows an adjustment
of the nylon bushing that makes contact with the y end-stop switch, just loosen the bolt and move it until makes better contact with the
micro-switch.
of the nylon bushing that makes contact with the y end-stop switch, just loosen the bolt and move it until makes better contact with the
micro-switch.
Re: Y-Axis can't find zero right
Hi chh2,
you miss understood the switch is right on the spot.
Let's put it this way!
After every print for some of us the Y-Axis moves forward (to 240) to present the object.
If I now start my next print the start code gives the command G28 (all axis home), the X-Axis goes to zero first then the Y-Axis goes to zero, but it stops sometimes at 230 or somewhere in between.
after pushing the Home Y button again and again it finally hits the end switch.
And with the start everything goes back to normal. Same code.
Michael
you miss understood the switch is right on the spot.
Let's put it this way!
After every print for some of us the Y-Axis moves forward (to 240) to present the object.
If I now start my next print the start code gives the command G28 (all axis home), the X-Axis goes to zero first then the Y-Axis goes to zero, but it stops sometimes at 230 or somewhere in between.
after pushing the Home Y button again and again it finally hits the end switch.
And with the start everything goes back to normal. Same code.
Michael
Re: Y-Axis can't find zero right
Okay, your last description is clear.
My only thought is, raise the table up close to nozzle height and have a look under the bed from the front while running it back and forth to the stops by hand. See if anything has the potential to contact the Y end stop. In particular, for me, the bed wiring harness would flex in such a way that it had the potential to trigger the end stop, so I loosely cable tied it out of position.
My only thought is, raise the table up close to nozzle height and have a look under the bed from the front while running it back and forth to the stops by hand. See if anything has the potential to contact the Y end stop. In particular, for me, the bed wiring harness would flex in such a way that it had the potential to trigger the end stop, so I loosely cable tied it out of position.
Re: Y-Axis can't find zero right
Hi jsc,
as you could see in my video I even took the bed of to prevent any movement, even wiggling on the cable didn't make it stop.
as you could see in my video I even took the bed of to prevent any movement, even wiggling on the cable didn't make it stop.
Re: Y-Axis can't find zero right
Oh, right. Sorry.