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After a year and a half making chips, I finally got my Panther Pup assembled. Problem is, she doesn't run! A found and fixed a few problems after which I was expecting it to roar to life but no dice. First, I found I wired the plugs wrong. I corrected this and now have a strong spark on each...

I bought 3' of 1144 from a big name industrial supplier to make a crankshaft for my Panther Pup engine. Despite making fixtures to keep the crankshaft from flexing and collapsing, and trying three different methods of machining the throws (including using the toolpost grinder) I now have three...

Has anybody made a running model of a sleeve valve IC engine? I'd love to see a video or pics. I think that, despite itsdisadvantages, a sleeve valve engine is just plain clever! I'd love to build one. John

I have this can of grease. It is obviously very old. It's labeled Bat's Grease by the Battenfeld Grease company of Tonawanda NY. Whatver magic stuff is in the can hasn't degraded or separated in all these years. It is also the best stuff I have ever used. It is unbelievably slippery stuff...

I was just watching a video on the death of the Wankel or Rotary engine as Mazda calls them. This got me thinking... Has anyone ever made a model wankel engine? I've never seen one. John

For my Panther Pup build, I have made many design chnages. One of which was to add a bearing to the ends of the connecting rods. I'm in the middle of making the pistons now and am wondering what's best... 1) Wrist pin pressed into the connecting rod small end. 2) Wrist pin pressed into the...

After finishing the Solidworks model (http://www.homemodelenginemachinist.com/showthread.php?t=25266), I generated working drawings for the distributor and started cutting. An odd part to start with? Well yes. But, I made the distributor parts out of G10 and G11 fiberglass. Messy stuff to work...

My latest endeavor is Bill Reichart's Panther Pup... One posted on this site a month or two ago - all in polished brass - caught my eye and I had to go for it... I bought a set of plans from LMS and got to work... Sort of... As is my modus operandi, I always start converting plans into a 3D...

It's almost done! I made the fuel tank today which has an integral check valve. All that's left to do is to make a buzz box look-alike to hold the ignition circuit, add a battery pack, and to take it all part for painting. John

I just completed a JE Howell Farm Boy. It's been running off a 6V supply generated from 4 AA cells. After those batteries called it quits, I've been using a battery charger. So, what's a good battery technology to use? I'd like it to be small and easy to hide. Also, easily rechargeable. The...

Not being satisfied to leave well enough alone, I decided I wanted my Farm Boy engine to have all key parts shop made. Including the spark plug. After a bit of research, I sat down and designed my own using Alibre. There was inspiration in George Britnell's and Gail in NM's designs. At the...

Here is a video of the first run of my Farm Boy engine after sorting out some issues with Hall sensors! It uses the ignition circuit I designed (search for "A new ignition circuit). This engine took about nine months to complete working on it sporadically. I could hardly hold the camera...

EDIT: This circuit has been revised and improved. See post #11. For my Farm Boy build, I wanted to wind my own ignition coil and build my own ignition circuit. I searched around for suitable circuits, but found virtually all unacceptable. They usually had one or more of the following...

My digital camera broke and I haven't been able to take progress pictures until today; my tax refund came and I was bale to purchase a new camera. Since my last post to the "First Farm Boy Parts" thread, I've made many more parts and started to dry fit everything... The hardware I used is...

For my Farm Boy build, I made the cylinder drip lubricator per the print. It does work, but I don't get a nice steady drip, drip, drip. The first drip comes out normally, subsequent oil no longer forms a drip but clings to the side of the drip tube and moves upward... The oil then flows down...

I'm currently building the J.E. Howell Farm Boy engine. Mr Howell's prints call for use of Starrett ground O-1 bar stock for the crankshaft. a 1 foot length of this stuff is around $60. Should I bite the bullet and go with it? I can't help but think there must be a good reason for his...

I started 3D modeling a few Farm Boy parts to help visualize them. One thing led to another and I modeled them all, assembled them, etc. Here's a 3D PDF of the engine... With Adobe Reader X you can pan, zoom, rotate, turn parts on/off, see inside the engine, and more...

I purchased the plans for the J.E. Howell Farm Boy Hit and Miss engine. The plans are first rate and Mr Howell's design is supurb. I'm a bit of a Newbie having completed only one other engine: a PM Research #7 Twin Cylinder Steam Engine from their unmachined casting kit. I'm likely in...

Hello everyone. I'm introducing myself as a new member. My name is John and I live in Middle Island, NY. I'm a avid HSM who enjoys building tools and engines. For a day job, I work as an electronics engineer designing motor controllers and test equipment for space vehicle motion controls...