Search found 102 matches

by George Butty
Mon Mar 11, 2024 5:49 pm
Forum: User Machines
Topic: 5 axis CNC Router/3d printer
Replies: 171
Views: 10237

Re: 5 axis CNC Router/3d printer

Tom, can the backlash add on be changed to add on negative an no add in positive direction. That would be
a typical convention say in a manual lathe.

George
by George Butty
Mon Mar 11, 2024 12:26 am
Forum: User Machines
Topic: 5 axis CNC Router/3d printer
Replies: 171
Views: 10237

Re: 5 axis CNC Router/3d printer

Tom , if you are talking about encoder error in the Tecnik, then the errors run average 0 to +- 3 counts on a 8000 cnts per rev. encoder when based on Kmotion sending a 0 position output. I will double check this number again because it does seem crazy low. One thing about those motors is they are a...
by George Butty
Sun Mar 10, 2024 7:32 pm
Forum: User Machines
Topic: 5 axis CNC Router/3d printer
Replies: 171
Views: 10237

Re: 5 axis CNC Router/3d printer

Hi Tom, I agree backlash comp sucks. At this point it does look mechanical because both Kmotion and Tecnik zero all the time. I have been playing with the backlash comp and it seems to be working. Does the MoveAtVel account for the Backlash value? It seems like it does not. Is there away to have it ...
by George Butty
Sat Mar 09, 2024 4:36 pm
Forum: User Machines
Topic: 5 axis CNC Router/3d printer
Replies: 171
Views: 10237

Re: 5 axis CNC Router/3d printer

hi Tom , found how to setup backlash. Will give it a try.

George
by George Butty
Sat Mar 09, 2024 4:13 pm
Forum: User Machines
Topic: 5 axis CNC Router/3d printer
Replies: 171
Views: 10237

Re: 5 axis CNC Router/3d printer

What does backlash rate mean?
George
by George Butty
Sat Mar 09, 2024 4:11 pm
Forum: User Machines
Topic: 5 axis CNC Router/3d printer
Replies: 171
Views: 10237

Re: 5 axis CNC Router/3d printer

HI Tom, found problem. It is backlash but not obvious. Kmotion is going back to zero and so is the motor.
I had to push lot harder than I thought to get the backlash to show. How does backlash comp work. Would this
help improve problem?

Thanks
George
by George Butty
Fri Mar 08, 2024 9:49 pm
Forum: User Machines
Topic: 5 axis CNC Router/3d printer
Replies: 171
Views: 10237

Re: 5 axis CNC Router/3d printer

OK and also I can check the Teknic motor positions as well by connecting to it.
Will do this tomorrow.

Thanks
George
by George Butty
Fri Mar 08, 2024 8:02 pm
Forum: User Machines
Topic: 5 axis CNC Router/3d printer
Replies: 171
Views: 10237

Re: 5 axis CNC Router/3d printer

Hi Tom, moving the bar by hand will deflect position but it bounces back to the position it was at before deflecting it+-. If at zero bounces back to zero. If at error position bounces back to error. The only value changing on DOR is the C angle. C rotation is very smooth and quiet and not aggressiv...
by George Butty
Fri Mar 08, 2024 3:51 pm
Forum: User Machines
Topic: 5 axis CNC Router/3d printer
Replies: 171
Views: 10237

Re: 5 axis CNC Router/3d printer

HI Tom, I attached a video of the problem. This will give you a better idea what is happening. In G49 mode you can see that I run the C axis only, to C-180 and then back to C0 then C180 and then back to zero. I set up a round tip probe so you can see the difference of the C0 going one way and then t...
by George Butty
Thu Mar 07, 2024 11:01 pm
Forum: User Machines
Topic: 5 axis CNC Router/3d printer
Replies: 171
Views: 10237

Re: 5 axis CNC Router/3d printer

Hi Tom, fixed homing file. Unfortunately this did not fix problem. The switching problem between RTCP and G49 mode is there but is very random. What is not random is I home machine and then set B90 and zero out the end of the setup bar ( 20" from rotation center) to a dial indicator. I set G49 and t...