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07-04-2011 #1
After having made a program to write the Gcode for milling timing pulleys (see another thread) I decided to make a form tool and cut them with that.
It's all in the video here:
I used the vertex 6" rotary table holding a 5" chuck with the 2" aluminium bar. I first machined the bar to the correct diameter for 30T on the lathe - 48.00mm, then put in on the rotary table using the DTI to get it on centre.
Some pictures:
Attachment 3901
Attachment 3902
Attachment 3903
Attachment 3904
Attachment 3905
Attachment 3907
Towards the end of the video I put the pulley in my new toy:
Attachment 3906
I thought the bandsaw cut it quite quickly, however over the 50mm distance it was off square by about 5mm which I don't think is very good. I will check the blade tracking and guide to see if that's what caused it. Either way it's a lot quicker than cutting it by hand, though on this occasion I should have just parted it!Last edited by Lee Roberts; 03-04-2012 at 09:04 PM. Reason: added vid
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