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Finished this over a year ago and finally got around to sharing it. I tool a little mechanical license and replaced all the fasteners with UNC/UNF made from 330 stainless hex. During construction the bridge casting has some super hard spots. I contacted Stuart and they graciously sent a replacement.

I have all the parts for this engine except the base casting. Anyone have a spare they wish to part with? Can buy outright or swap for machinists goodies…PM if you do.

I started on this back in 2019 as a project to teach myself CNC. I went to view and measure the original Brayton engine at NMIH in Bethlehem. From there I used the CNC to make all the patterns. It is a unique engine in that it is a constant pressure combustion cycle. You get a pilot flame...

I have a set of castings for the Lil Brother IC engine which is missing the base casting. I tried Ministeam but they are out of them. Anyone have a spare from a partial set of castings they wish to sell or trade for?

This one took about 6 months to complete. Made all the hardware out of 3/16 SS hex stock. Re-engineered the pump piston to have a sliding check valve instead of the tapered piston in the drawing. This is its second run on Christmas Day 2021.

Picked up a set of castings for the 1/8 Ericsson made by Meyers. I have no plans for building the engine and was wondering what was the stroke of this one. I’ve made several hot air engine models in the past and with the stroke, I should be able to complete it. Any help appreciated.

Working on a 10V as a filler project. Problem is I’ve encountered several hard spots in the arch casting making accurate machining of the guide ways and cylinder flange difficult. Is there any thing I can do in the way of heat treating the casting to help soften then up?

I’m working on a small plunger pump for a model I’m building which has a spring loaded D valve to shuttle fuel from the plunger to the delivery port. For scale, the d valve is a 0.25” cube. The body is made from zinc-based yellow brass and I’m looking for opinions on what to make the d valve...

Working on freshening up a Breisch little brother air cooled for a friend who purchased it and here is what I found when I took the piston out. Since then I bought 3/4” rings and plan to remake the piston. The owner has the prints and says they do not have rings shown on the piston...weird...

I’m helping a friend with a headless Witte model. Has way too much compression and I’m looking to get the dimensions or a snippet of the drawing of the piston to see how to modify it to reduce the CR. Apparently pistons/kits for this were sold by DeBolt but I don’t see it on his current web...

After countless trial runs machining foam and wood, I’m getting ready to make some aluminum chips. I have a mist system head and don’t want to use the very loud standard shop compressor. Has anyone tried using one of the larger aquarium pumps sold on eBay with the electromagnetically driven...

I have a complete set of boards for a 90s vintage Isel 4 axis PCMAC100 system with some cabling. Im upgrading this system to a modern system but want to see if anyone has an older unit who may need them. Looking for trades. You need these, offer something in return. PM me if interested.

Gray iron kit of castings to build the Myrick Eclipse 1/3 scale engine. 2" bore x 2-1/4" stroke, hit and miss governing, hot tube ignition, 10.3" flywheels, bronze rod and propane fueled. Finished weight ~65 lbs. you source 16DP cam gears. No formal plans, but I have a set of my build sketches...

Used to post regularly to this site but lately is is miserable using safari or Mercury browser on an iPad. Constantly reloads and hangs up....what's up ? Does it not like my having private browsing/limited cookies?? Or is it the adverts trying to load? I'll check back from time to time....shame...

Does anyone have any plans for making a rotating tailstock adapter to go from a morse taper to a small 4" 3-jaw chuck? I often get occasion where one would be a big help for turning tubing and hollow shapes where a bull nose is impractical. Trying to get an idea of what type of bearing to use as...

This is one I have been toying with making for several years. The Brayton cycle differs from the Otto cycle in that it is constant pressure combustion. A mix of fuel and air is injected into a cylinder and burns. As it burns, it expands and creates additional work. The top side of the piston...

Looking for one or two old school cast iron globe valves. Condition unimportant as long as threads decent. I am making an engine and need them for the intake and exhaust chests. Have trading fodder or can purchase outright. Need to be iron... Let me know what you have. Globe valves have the...

So I picked up a set of those 3/8 insert lathe tool holders. You know the set of 5 from the Far East . What size inserts are they? Does anyone sell replacements? They actually work pretty good for small stuff. I think they may have a TPGH prefix with a 220-222 suffix for the radius of the...

Here is the beginnings of a project to make a one-third scale model of a Myrick Model H engine circa 1912 from Olean, NY. I saw this model in finished form at Coolspring Power Museum a few years ago. The fellow who made it intended it to be a one-off. It was made from aluminum castings. This one...

Binks professional-grade model 83-550T 2.5 gallon pressure paint pot with agitator accessory. It is rated at 110 psi. It is in good condition with just a bit of surface oxidation on the nickel plating. Comes with everything pictured. This unit saw very little use. I believe you can get plastic...