First couple of parts...

[Wal]

After a couple of - ahem - 'experimental runs' I've managed to cut a few parts...

Switch mount:



This is a part that my machine made for itself. It mounts to the plate edge and holds an inductive proximity switch. The idea is to be able to tweak the position of the limit/home switch. Machined in about 10 minutes.

Drill jig:



A friend of mine had a load of small parts cast, the inverted spherical cups that you see have come out slightly under-size... He has a shed load of these that he wants to widen by kissing them with a ball-nose end-mill. They're fiddly things (only 16mm long) and he needed a way of locating them quickly and accurately under his press-drill, so I came up with this. I had to oversize the pockets by 0.25mm to account for the lip you get with cast parts, but it's a pretty good snug fit without the part 'sticking'. This is the part before it got cut loose of the stock it was machined from. The finish was a bit of wet and dry paper followed by wire wool. He's using it and says it works a treat. Good stuff! Machined in the best part of an hour.

Measuring both parts with my vernier callipers, they're ±0.05. Fresh end-mills and conservative feeds (no more than 300mm/min with DOC no more than 0.5mm) go a long way...

Wal.