Hello,
I don`t often post before I have something to show, but I`m making an exception here as I need some advice!
I have a really lovely Rawyler Swiss made Horizontal miller that I want to use for pinion and gear cutting and I`m needing to make a divider and I will be runing this on one of Kwackers CNC index controllers that is built and ready waiting. Pictures tomorrow (well, OK, I do have something I could have shown!!).
I need to keep costs to a minimum and use things I already have as much as possible so please bear that in mind.
I intend to make something fairly simple like our very own madmodder, Dean made on his website...
I`m not showing this as an image..because IT IS NOT MY PICTURE!!, this belongs to deansphotographica:
http://www.deansphotographica.com/machining/projects/divider/1stassy.jpgI have all ready and waiting:
straight 16mm shank ER16 collet chuck
16mm ID olite bushes
cast iron block 50 x 50 x45mm which will need raising another 30mm on a ally base
120:1 suitable sized worm and wheel
Using the straight shank er16 chuck straight out of the box, if I bored he cast iron block for the bushes, I`d have an instant spindle! Then by mounting the worm wheel directly on the shaft, I could then use some mounting brackets to mount the worm above or below the wheel and I`d end up with something directly like Dean has made....
BUT ....
.... I intend to drive this off a stepper motor. Now it only is a tiny thing with very small mounting holes, spaced in a square 31mm x 31mm. My problem is, if you look at the image above, I`d not have any material to mount the motor bracket/motor onto!
In an ideal world I`d have the motor running directly being the dividing head, inline with the spindle and table but I`m guessing that would be an aweful lot more work to rotate the worm shaft by 90 again to get the rotation back parallel with the spindle!
I`d just like any thoughts or suggestions or build ideas. Especially how to mount the motor and worm arrangement.
Chris