Search results

I've had mine for about 11 months and they've been life-changing. I have had nerve deafness my entire life with loss that varies with frequency. Until the newer, digitally-programmable ones came to market, hearing aids were never an option. At 57, I'm still hearing various things for the...

Great suggestion. Thanks! I can see where the bearing could be pushed for sure. I use a prop-drive style adapter that doesn't rely on pushing a starter cone into the spinner or prop nut. When I designed the engine, I was not confident in my ability to maintain the CL and alignment between two...

Hello @michael-au. Looking at the drawings and photo #24, the 0.312" shown in the instructions should be 0.031" as measured with a depth micrometer placed on the flat being milled, and measuring to the crankpin. First mill one face to the distance, and then the other, followed by milling...

Awesome job! Very nice finish, super-clean!

Yes, the idea is that the fuel/air/oil mix takes care of the timing gears, cam, crank, cylinders, etc. as it passes thru the crankcase rather than relying on blow-by or exhausted oil as is typical for commercially available four stroke model airplane engines.

This is some REALY NICE LOOKING work. Wow!

The idea was to allow some of the mixture to pass thru the diffuser at the drive pin as well. The diffuser was needed as I had trouble with fuel distribution between the cylinders. It helps to make sure each one gets its fair share of the mix.

It's been a while since I made mine. All holes were tapped manually in the mill using a sleeve-style tap guide (like the ones held in a lathe tail-stock.) I usually follow the procedure of tapered, plug, and bottoming with the taps. The valve cages were initially set up dry, but leaked. This...

I use either an 11x6 or a 12x6 Master Airscrew (nylon) prop. Pretty sure the one in the video is the 11x6.

In the US, 4130 Chrome-Moly tubing is readily available from McMaster-Carr and Online Metals. The cylinders are designed around the stock size, leaving only lapping to dead-round.

I did the same. Make an extra in case of "casualties." My extra cylinder used threaded ports for intake and exhaust. These didn't look very neat, so I switched to the flanged connection. I may still use it for a single-cylinder version. BTW, I'm amazed to see your CNC at work. Your photos...

Glad to help. Pip was designed to fly, but is not a lightweight at 28 oz. With an 11" prop, I get about 9500rpm. With a 12", about 8500. Running videos are on YouTube. Plans are available through Littlelocos Model Engineering via e-mail request. We usually bring the engine and a few sets...

Hello everyone, I'm just finding this thread. NICE work on the Pip!! Regarding the Carb, I designed a simple carb specific to the engine some time ago, and have attached that drawing here. I've also attached the drawing for the running stand as well. These are included in the current set...

Very cool!!

Good morning George, I'll do my best to respond, as Aaron Kohler was kicked off the HMEM Forum after joining and then posting about the show. As of a few weeks ago, the admins weren't responding to his requests to rejoin. :-( (I had posted the flyer before I learned of this.) I don't want to...

Check with Brent Myers at Myers Engine Works. He bought the Maytag projects from Brad Smith. Here's the Web site with the info. Gas Engines | Myers Engine Works Enjoy! Todd.

Sure. We can do that. Not a problem.

Thought I'd post this here as this show is coming up quickly. The Machinist Group of NE Indiana is holding their show in Monroeville, Indiana Saturday October 14th. Joy and I will be traveling there from Hagerstown, MD and setting up as vendors. My understanding is that a number of other...

I always liked the watercolor shading. The photo idea sounds cool as well. Thanks!

That's got a really nice look to it.