4th Axis timing pulley + Axminster bandsaw review

[Jonathan]

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:

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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!