PMR3A Mill Engine

[Flyboy Jim]

Hi Bill,

I have the aluminium casting set. I purchased them off ebay from the USA, it's an older kit. The flywheel has the four spokes instead of the current three. There may be other differences that I don't know about.
I forgot to mention, I did some "fiddling" - filing of the flash from the casting bed as well.

Ben

I believe the word is "fettling", not "fiddling"
Rick

I know that for myself I spend a lot of time 'fiddling' with 'fettling'.    In fact I did a bunch of that today.

Jim

[bwal]

Well things have progressed slightly. Unfortunately i fractured my scapula (shoulder blade - I think) in two places, so I'm out of action for a month or two. I had just started on the flywheel and was going to finish it up on Sunday after the kids went back to their mother's house. Machining the flywheel is my favorite part of the model.
Regards Ben.

[Admiral_dk]

Unfortunately i fractured my scapula (shoulder blade - I think) in two places, so I'm out of action for a month or two.

Ouch - I haven't tried this, but I would expect quite an amount of pain - both when moving around and when trying to sleep .... I really hope you mend soon and well Ben.

Nice parts so far - the family shot looks great 

[Flyboy Jim]

Your project is coming along nicely Ben. 

Sorry to hear about your shoulder. That sounds pretty debilitating for sure. When the time comes, be sure and take advantage of any Physical Therapy offered..............it makes a huge difference in a persons recovery time.

Jim

[gary.a.ayres]

A fractured scapula sounds like no fun.

Commiserations.

The build is looking good, though.

gary

[Joe P.]

I made the same engine in cast iron and bronze a while back. I followed mostly Tinker John from Texas who did a fantastic job, but I felt he left some gaps in the setups and operations. (Not knocking him because I know first hand videoing and machining at the same time is very time consuming and distracting) So I did a video series of how I went about making the engine. I am just a hobbyist and this was my first engine, but if you can pick anything up from it then it’s well worth the time.

https://www.youtube.com/playlist?list=PL3EdvTvwbAmR7Pe-suLnDOCGaVUdVwy0g


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[bent]

I too have built the iron/bronze version, it was my 1st engine.  Learned a lot building it.  I had trouble getting the packing nut thread centered relative to the piston rod bore, and ended up over-boring the hole to keep it from rubbing on the piston rod.  The engine runs ok on air without packing.   

[b.lindsey]

Sorry to hear about the injury Ben. Hope it heals soon and we'll so you can get back in the shop.

Bill

[bwal]

Hi All,

I'm on the mend. I actually spent some time (gingerly) in the workshop yesterday.

I had plenty of time to watch Joe's youtube videos of his build. I picked up some good pointers and realized I had made plenty of more mistakes on my build. Which I fixed yesterday so back on track now.

I noticed on Bill's finished build of his PMR 5, he had oilers. Are they home-made or kit supplied?

Ben.