CNCMARTY did a neat trick in a Acorn where he used a once-per-rev encoder pulse to super-accurate home his machine using the M105 command in the .hom file:
https://www.youtube.com/watch?v=l1xUtRwN6T0
I was looking to implement this on my AllInOne Bridgeport, but what P values would I use for the X, Y, & Z once-per-rev encoder pulses?
AllInOne Homing <home to marker pulse>
Moderator: cnckeith
Re: AllInOne Homing
The closed-loop control systems always use the encoder index pulse for this purpose.
Just home using M91 or M92.
No special wiring is required.
Just home using M91 or M92.
No special wiring is required.
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Re: AllInOne Homing
martycncgarage, may want to add a note to your vid about that.
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- Acorn CNC Controller: Yes
- Allin1DC CNC Controller: Yes
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- CNC12: Yes
- CNC11: Yes
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Re: AllInOne Homing
If you are using the All in One DC, (or OAK) then this is standard practice as CNCSNW mentioned.
All in one and Acorn are two different controls entirely. Acorn is open loop. We are just taking the index pulse into an input and having the control watch for it to give Acorn controlled machines using a drive that can provide the index pulse the ability of precise Axis homing.
Marty
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We can't "SEE" what you see...
Mesa, AZ
We can't "SEE" what you see...
Mesa, AZ