Bill, Yogi, Don, Kerrin, & mnay
Thanks for all the nice comments and your continued support. I have been needing to get an update posted; it seems that Max is able to crank out parts faster that I can get them posted.
He has been busy as you can see the progress photos.
The eccentric straps were next and they are each different. After the blanks were screwed together they were bored in the mill.
Then transferred to the lathe to cut the locating groove in the ID of the bore. The two mounting holes used to hold the part to the mandrill were located in areas that would later be removed. Once the strap was mounted to the mandrill it was put in the 4 jaw chuck and dialed in.
Mounted on a different mandrill the straps were then moved to the rotary table.
After much tedious cranking they're starting to look the part.
Here are the two finished straps.
The ratchet was machined on the end of a piece of round bar using the Spindex to mill the teeth; then parted off.
A pair of square headed set screws were made to secure the ratchet.
The pawl (a fussy little part) was also machined on the end of a piece of round stock then parted off at the proper thickness.
Here is a family shot of the eccentric assembly
The ratchet and pawl both have been case hardened.
The three spur gears were turned from cast iron stock and mounted on a mandrill to machine the teeth. The blanks were left oversize on the thickness to reduce flex and chatter while cutting the teeth. Then finished to print after the teeth were cut.
Here are the two shaft gears ready for the engine. I think they may get a keyway broached in them before assembly.
The clutch assembly has also been completed; I’m starting to wonder if my friend ever sleeps.
Here is a picture of the assembled clutch.
And just for good measure he decided to knock out the piston.
Well I think that brings us up to date. There is some rack material on order that will take some interesting modifications to turn it into the proper part.
Thanks again for following along and all you nice comments.
Max & Dave
