4" Vertex Rotary Table CNC conversion

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j45on:
Many thanks Kwackers :bow:
I'm off to ebay for bits now :thumbup:

cidrontmg:

--- Quote from: j45on on October 13, 2010, 04:32:11 PM ---Many thanks Kwackers :bow:
I'm off to ebay for bits now :thumbup:

--- End quote ---

Me too. Very impressive! :bow:
:wave:

slowcoach:
Hi Kwackers,

Will this PIC be ok to use on the division project PIC18F452-I/P and finally which version of the firmware should I use? (I have a Soba 6" rotary table).

Cheers
Rob :thumbup:

kwackers:
@slowcoach

That's the correct PIC (make sure it's a 452 and not a 4520, I spent several weeks emailing back and forth trying to fix a strange issue for a guy in the States only to eventually discover he'd used the wrong PIC!)

You can use either version of the firmware in the links above, all I changed from one to the other is the manner in which the worm ratio of the table is entered.

E.g. In the firmware in the first link you type the worm ratio (the firmware assumes a 400 step per revolution stepper), in the second link you enter the worm ratio multiplied by the number of steps per rev of the motor.
So with a 90:1 worm you would enter 90 in the first and 90*400 (36000) in the second. The reason for this is because some people were using strange home made worm and motor combinations that wouldn't work with the earlier version of the firmware, this is unlikely to be an issue for you.

slowcoach:

--- Quote from: kwackers on October 14, 2010, 05:07:27 AM ---@cidrontmg

That's the correct PIC (make sure it's a 452 and not a 4520, I spent several weeks emailing back and forth trying to fix a strange issue for a guy in the States only to eventually discover he'd used the wrong PIC!)

You can use either version of the firmware in the links above, all I changed from one to the other is the manner in which the worm ratio of the table is entered.

E.g. In the firmware in the first link you type the worm ratio (the firmware assumes a 400 step per revolution stepper), in the second link you enter the worm ratio multiplied by the number of steps per rev of the motor.
So with a 90:1 worm you would enter 90 in the first and 90*400 (36000) in the second. The reason for this is because some people were using strange home made worm and motor combinations that wouldn't work with the earlier version of the firmware, this is unlikely to be an issue for you.

--- End quote ---

Thanks Kwackers,

Always worth checking with the designer, I have seen a few 4520 on the web and did wonder if they would work or not. Appreciate your info on the firmware differences. Looking forward to building this project. Thanks again for sharing this very useful piece of kit :thumbup::bow: :bow::thumbup: Now where did I put that soldering iron :dremel:

Rob

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