Search results

Probably too late this time, but I would recommend that you sand blast bare metal lightly to give the powder coat some grip. Powder coat, although tough in it's own right is only as good as the prep as far as sticking to the base metal. On another note. Good thing you didn't paint the flywheel...

I made mine from the same plans. Lots of fun to build.

Thanks.

1/16 bore 1/16 stroke engine powered by steam from a thimble boiler and alcohol lamp. Excuse the typo in the description. You can watch it run by clicking under the picture on the left. It's just a blur unfortunately. https://www.davesage.ca/thimble.html

There are throw away stick on plastic sheets for the inside of the window. They have adhesive around the perimeter of the sheet. Princess auto sells them for their cabinets. I'm sure any place that sells the cabinets has them. They come in a package of a few for cheap. I've only used a couple...

I'm confused. What is all the plumbing you have on the bottom. On mine that is where you let the sand out when you want to change it. It's just a press in plastic cap installed from the inside to block the hole. The blasting gun is fed from a simple air fitting through the side of the cabinet. I...

Very slick Terry: I've read lots about the quality of Chinese knock off parts. And folks exposing them. I also had an experience with some small "Mosfets". Tested out that they were just regular transistors. I'm glad you subjected yours to your usual rigorous testing. Sad that we can't trust...

Not sure if you have a household cleaning solution called Spray Nine in your area. At work we had many aodized black aluminum parts and inadvertently put them in an ultrasonic cleaner with Spray Nine to remove the grease and they came out free of anodizing. No harm to the parts other than that...

Keep up with your prescribed exercises. Very important. Here's to a speedy recovery.

I had no intention of being critical. I applaud your efforts. I enjoy all means to an end. I've seen a few posts here and there about using the three / four wire coils (driver included). Case in point post #112 by Eccentric. I might have missed your particular post . Seems the way to go...

Ok. Thanks for getting all the info together in one place. I'll order the stuff just to play around. That said my driver board (Sage / Gedde - presented elsewhere here) and a cheap COP coil is cheaper and smaller as a whole package. Also I've never run into a practical rpm limit with the coil...

Thanks Terry.

Welcome to retirement Roy. Well deserved. I'm very glad you were able to find another builder for the CDI's. There would be a HUGE hole in the model community if they were to disappear. And Thanks Dan for picking it up. We all appreciate it.

Crazy nice workmanship. Over and over on this engine !! Always amazing. What is your source for the Alodine process chemicals? I love the look. I already can do anodizing. Perhaps it is not necessary to add this process to my repertoire?? Thanks

bluejets: Was there ever a link posted for a CDI module that works with your circuit? I know you mentioned that some don't work with your circuit. Perhaps even some from the same supplier. It would be useful if you could post a link to get started. I can take my chances on supply reliability and...

Yes. Close enough. Although some of Roy's later ignitions were more sophisticated and used a PIC processor for multi spark and some timing functions.

If you do that Dave, see if you can use the miniature coils Roy used to use. The physical size is great if trying to hide it and the little buggers will jump a half inch gap. That's the plan. For the uninitiated - Be careful testing any coil with an excessive spark gap. At some point the coil...

Terry: I'm with you. Even though I make my own coil drivers I too don't like the large (COP) coils and the necessity to hide them. So I've been using Roy's CDI modules (originals as you show). But alas, they are not available any more. I guess it's about time to design my own. I have a few...

Forget the balloon. As suggested by others put your finger over the spark plug hole and check for compression. Try starting fluid to see if it responds.

Does the compression gauge have a working check valve?