Killed my encoder today :(

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TRM
Posts: 218
Joined: Fri Jul 27, 2018 5:42 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: none
DC3IOB: No
CNC11: No
CPU10 or CPU7: No

Re: Killed my encoder today :(

Post by TRM »

The bearing where noisy and I could place my hand on the encoder and feel a roughness. The bearing were installed from the factory with some form of loctite. I had preload on the puller and I was warming the shaft with a heat gun to release the loctite. It let go with a "pop'. The puller must have hit the glass scale. It got shattered.
I am going to use the existing encoder shaft bearing housing and mount to drive the new encoder.
martyscncgarage
Posts: 9914
Joined: Tue Mar 28, 2017 12:01 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
Oak CNC controller: No
CNC Control System Serial Number: none
DC3IOB: No
CNC12: Yes
CNC11: Yes
CPU10 or CPU7: Yes
Location: Mesa, AZ

Re: Killed my encoder today :(

Post by martyscncgarage »

TRM wrote: Thu Jan 24, 2019 9:08 am The bearing where noisy and I could place my hand on the encoder and feel a roughness. The bearing were installed from the factory with some form of loctite. I had preload on the puller and I was warming the shaft with a heat gun to release the loctite. It let go with a "pop'. The puller must have hit the glass scale. It got shattered.
I am going to use the existing encoder shaft bearing housing and mount to drive the new encoder.
Roger that...
I wonder if the bore was a sloppy fit for the bearings. Normally if they are a light press fit they are good to go....
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
TRM
Posts: 218
Joined: Fri Jul 27, 2018 5:42 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: none
DC3IOB: No
CNC11: No
CPU10 or CPU7: No

Re: Killed my encoder today :(

Post by TRM »

See what you guys thing of this.
I moved the coupler around the shaft trying different positions and .004 was about the best I could get.
https://www.youtube.com/watch?v=QbunAKYVxOg
https://www.youtube.com/watch?v=FnlYM3JdpH0
https://www.youtube.com/watch?v=0ziIJNi9Y1A

Where I got the idea to check it.
https://www.youtube.com/watch?v=-0k_UoJ_Qn0
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