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Topic starter
The Z axis stoped turning suddenly.
My first thought was that any screw has loosened on the axel, but no.
I´m using UCCNC and when I "quick jog" shift+jog it turn for some reason.
Could it depend on any of the three cables that have gone off?
/Mika+
Stepcraft M.1000 + HIWIN Ball Screw + Semi-Closed Loop System + MM-1000 DI + Automatic Tool Changer + 2 Rows Tool Magazine Pneumatic Lifting + Engraving Laser DL445 + 4th Axis + Aluminum T-slot table + 3D Touch Probe + UCR201 + UCCNC + VCarve Pro + Cut3D + CorelDraw 2018 + Autodesk Inventor
Posted : 25/05/2017 7:44 pm
Topic starter
This is a video of what happening.
https://www.youtube.com/watch?v=rD02LWfB8r0
/Mika+
Stepcraft M.1000 + HIWIN Ball Screw + Semi-Closed Loop System + MM-1000 DI + Automatic Tool Changer + 2 Rows Tool Magazine Pneumatic Lifting + Engraving Laser DL445 + 4th Axis + Aluminum T-slot table + 3D Touch Probe + UCR201 + UCCNC + VCarve Pro + Cut3D + CorelDraw 2018 + Autodesk Inventor
Posted : 25/05/2017 10:50 pm
Topic starter
The motor has no power, and I can stop it with my fingers without any problems.
No one has any idea what it might be wrong ???
/Mika+
Stepcraft M.1000 + HIWIN Ball Screw + Semi-Closed Loop System + MM-1000 DI + Automatic Tool Changer + 2 Rows Tool Magazine Pneumatic Lifting + Engraving Laser DL445 + 4th Axis + Aluminum T-slot table + 3D Touch Probe + UCR201 + UCCNC + VCarve Pro + Cut3D + CorelDraw 2018 + Autodesk Inventor
Posted : 28/05/2017 8:07 am
Hi Mikath,
It looks very much as though only one of the two stepper coils is being driven. Three possibilities for this situstion :-
1) Fractured wire or loose connection in the wiring loom. (Most likely)
2) Open circuit winding inside stepper motor. (Not very likely - low resistance and thick wire)
3) Faulty stepper driver chip. (Unlikely for only one channel to fail - usually all or nothing)
Given that it is likely to be a fractured wire, I guess you will have hours of fun unwiring the gantry. 👿
Peter
SC 420/2, Industrial VFD spindle from StoneyCNC
UC100 + UCCNC
Cut2D, Autosketch10, Draftsight, Eagle 9.5.1
There is no problem, however simple, that cannot be made more complicated by thinking about it.
Posted : 28/05/2017 11:34 am
Topic starter
Thanks for your reply.
Initially, I'll try to change the X or Y axis to Z to see that there is no error on the PCB.
My fear is to rewire the gantry... 🙁
/Mika+
Stepcraft M.1000 + HIWIN Ball Screw + Semi-Closed Loop System + MM-1000 DI + Automatic Tool Changer + 2 Rows Tool Magazine Pneumatic Lifting + Engraving Laser DL445 + 4th Axis + Aluminum T-slot table + 3D Touch Probe + UCR201 + UCCNC + VCarve Pro + Cut3D + CorelDraw 2018 + Autodesk Inventor
Posted : 28/05/2017 3:24 pm
Topic starter
One other thing I noticed is that the motor has a very high frequency of noise, the other motorss are completely silent.
/Mika+
Stepcraft M.1000 + HIWIN Ball Screw + Semi-Closed Loop System + MM-1000 DI + Automatic Tool Changer + 2 Rows Tool Magazine Pneumatic Lifting + Engraving Laser DL445 + 4th Axis + Aluminum T-slot table + 3D Touch Probe + UCR201 + UCCNC + VCarve Pro + Cut3D + CorelDraw 2018 + Autodesk Inventor
Posted : 28/05/2017 3:33 pm
Topic starter
Now I have changed the X motor to Z on the PCB and it work like a charm.
I think it´s a fractured wire.
/Mika+
Stepcraft M.1000 + HIWIN Ball Screw + Semi-Closed Loop System + MM-1000 DI + Automatic Tool Changer + 2 Rows Tool Magazine Pneumatic Lifting + Engraving Laser DL445 + 4th Axis + Aluminum T-slot table + 3D Touch Probe + UCR201 + UCCNC + VCarve Pro + Cut3D + CorelDraw 2018 + Autodesk Inventor
Posted : 28/05/2017 10:16 pm
Hi Mika,
Glad you've probably found the problem.
Don't envy you having to unwire the gantry to find the culprit. Good luck!
Peter.
SC 420/2, Industrial VFD spindle from StoneyCNC
UC100 + UCCNC
Cut2D, Autosketch10, Draftsight, Eagle 9.5.1
There is no problem, however simple, that cannot be made more complicated by thinking about it.
Posted : 28/05/2017 10:42 pm
Topic starter
I cut the cables and replaced with new ones and now all the axis work.
It does not look so nice at the moment, but I can fix it when I have new parts.
/Mika+
Stepcraft M.1000 + HIWIN Ball Screw + Semi-Closed Loop System + MM-1000 DI + Automatic Tool Changer + 2 Rows Tool Magazine Pneumatic Lifting + Engraving Laser DL445 + 4th Axis + Aluminum T-slot table + 3D Touch Probe + UCR201 + UCCNC + VCarve Pro + Cut3D + CorelDraw 2018 + Autodesk Inventor
Posted : 31/05/2017 4:29 pm
