Building a milling machine

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NormanV:
I did lay a ruler alongside it on the first scan but didn't bother on further scans as it was just the angle that I was interested in. It took a few goes but I got there.
Machining the pulley was straightforward enough, I just had to keep a close check on the tools increments.
It turned out well.

philf:
That didn't take long Norman!

vtsteam:
Looks good! :thumbup:

NormanV:
I machined the motor pulley this morning. It did not go as well as the first pulley. You can see from the photo that the sides of the grooves broke up on the smaller part of the pulley. I'm not sure why that was, it wasn't caused by a blunt tool as I cut that section first and you can see that I didn't have the same problem on the larger diameter. It may be a casting fault.
Since machining it I have cleaned it up with a file and emery, it looks better.
This afternoon I was planning to cast the motor mounting plate, I'll cast a new motor pulley at the same time.

NormanV:
I got lazy and decided not to do any casting today. Instead of making a mounting plate for the motor to allow it to pivot when adjusting the belt tension I decided to mount the motor on four studs. It will take longer to adjust but it's not a job I expect to have to do too often.
Everything is now ready for the belt, that should be here on Tuesday.
Now I have to do the wiring for the drive motor with it's speed controller, the reversing switch on the motor for raising and lowering the table and the tachometer. It's mounting the switches that is giving me problems. Where should I put them? I suppose I could cast a nice box to fix to the side of the head. I am not keen on putting the switches on the mounting bench due to the danger of swarf getting in.

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