Search found 25 matches

by DarkApollo
Fri Oct 10, 2014 11:53 am
Forum: Assembly
Topic: More Z axis issues
Replies: 14
Views: 2646

Re: More Z axis issues

:fingers crossed: I may have fixed it. The motor was stalling even when removed from the axis so the root of the problem was before the lead screw. After swapping the plugs to a different axis, I noticed that the motor was turning a lot slower even though the speed and acceleration numbers were a lo...
by DarkApollo
Thu Oct 09, 2014 7:02 pm
Forum: Assembly
Topic: More Z axis issues
Replies: 14
Views: 2646

Re: More Z axis issues

Is it possible that the M8 nuts that sandwich the bearing are not tapped straight? I know some others have had that problem. The only other thing that I can think of is that it looks like your controller can take up to 60v. Maybe is just needs more voltage to run the Z axis properly. I never though...
by DarkApollo
Thu Oct 09, 2014 6:22 pm
Forum: Assembly
Topic: More Z axis issues
Replies: 14
Views: 2646

Re: More Z axis issues

'upgraded' the threaded rod to a 12" rod and added a second carrier bearing to the bottom. I bet this is your problem. Try taking that bottom bearing off. Threaded rod is not a "precision" screw. You have probably over constrained your Z axis causing to it bind randomly. It was stalling and acting ...
by DarkApollo
Thu Oct 09, 2014 5:04 pm
Forum: Assembly
Topic: More Z axis issues
Replies: 14
Views: 2646

Re: More Z axis issues

The build is: Standard size SO2 Nema 17 42oz on X/Y Nema 17 83oz on Z 300w spindle 24v PSU MX3660 3axis digital controller LinuxCNC All of the motors were wired using a multimeter to check for resistance pairs. The wiring is run to terminal blocks, and the screw connectors to the controller are tigh...
by DarkApollo
Thu Oct 09, 2014 12:39 pm
Forum: Assembly
Topic: More Z axis issues
Replies: 14
Views: 2646

Re: More Z axis issues

Right now the acceleration is as slow as LinuxCNC will allow. I will mess with the speeds to see if that improves. There really is no gravity to overcome when it is only attached to the lead screw and there is no carriage attached. It is just spinning the rod... :-(
by DarkApollo
Thu Oct 09, 2014 4:38 am
Forum: Assembly
Topic: More Z axis issues
Replies: 14
Views: 2646

Re: More Z axis issues

ANYONE? Inventables sent me a new MX3660 and it STILL stalls. The motor (17's) is ONLY attached to the lead screw and the carrage is off, only the delrin nut is on the screw. I had the motor running for about 10min on +-15" cycles uncoupled from the lead screw and it didnt miss a beat. This is getti...
by DarkApollo
Tue Sep 30, 2014 2:47 pm
Forum: Assembly
Topic: More Z axis issues
Replies: 14
Views: 2646

Re: More Z axis issues

Upped the amps, loosened the delrin nut, same random stalling (it actually stalled more when the nut was loosened)
by DarkApollo
Mon Sep 29, 2014 6:18 pm
Forum: Assembly
Topic: More Z axis issues
Replies: 14
Views: 2646

Re: More Z axis issues

Thank you for the reply! I would have to check on the motor, but it was brand new. The motor is running at 2.04amp. What do you mean tighten it too much? To the back of the carriage? I am going to 'upgrade' my Z to a longer M8 and have a bearing at both ends to keep it aligned. I will try to loosen ...
by DarkApollo
Mon Sep 29, 2014 2:56 pm
Forum: Lounge
Topic: Mechanicsburg, PA --- Milling Machine and 3D Printing Demo
Replies: 8
Views: 3106

Re: Mechanicsburg, PA --- Milling Machine and 3D Printing De

Darn! I didnt even know about this.. :-/
by DarkApollo
Sat Sep 27, 2014 2:00 pm
Forum: Assembly
Topic: More Z axis issues
Replies: 14
Views: 2646

More Z axis issues

http://i384.photobucket.com/albums/oo288/kheldarq/Mobile%20Uploads/th_trim7192728B-748A-42AD-9A61-F0D7B969FEFF_zps1228cc32.mp4 Ive looked at a lot of threads and straightened and rebuilt the Z axis a dozen times. It moves smoothly 90% of the time so I doubt it is binding... The motor stalls out in ...