Thanks Maverick. I will square the radius at the bottom with an end mill mounted in the x axis live tool, don't know why I didn't think of this in the first place.
Well, with a minor detour to clean a bunch of silt off the shop floor (recent downpour overwhelmed the storm drains, I had
6" of well silted water in the shop, at least it drained quickly afterwards, but I'll be sweeping up dust for the next 10 years I think)
got done the steam chests;
Turned, bored, parted off, on the rotary table for the hole circle, drilled and tapped the outlet hole in the mill.
The hole for the outlet is tapped 1/4 - 28 NF, I had asked earlier if anybody would object to this, nobody said no, so there you are!
All parts finished.
I made the 3mm pin for the crank return out of 316 Stainless steel. Milled the slot out as far as it could go without touching the 7.14mm shaft but the crank still doesn't quite line up so the crank pin will have to be filed slightly, if I had foreseen this I would have milled the crank pin when I was making them but it is not a huge issue.
Really enjoyed being a part of this build, looking forward to receiving the parts so I can assemble the whole motor and looking forward to the next team build also.
Here is the video of the crank return getting machined out of brass.
Just wanted to say all the other parts shown in this thread look great. I can appreciate parts made old school way and have had my fair share of making parts that way before I new how to program CNC machines.
Unless someone has a beter Idea, Ship the tenth part to me and I will assemble the motor. Then will send it to either the One wh will attend the most shows or we ill just auction it off and I will ship.
i got wood and got screwed so yes i will be sending them out soon.
still nowt on the plaques though had the being engraved by a friend, but he messed them up somehow so i have to make new ones