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Great project Bob. You may be surprised at how many little jobs will fit in that small envelope. I have a much larger laser that I got used about 15 years ago and probably 1/3 of the things that I engrave would fit. I build small engines and I can think of only one gasket in the last 65 years...

Lots of interesting engines on that site. Thanks for posting the link. Gail in NM

If your drill motor is a quality one that you like, you might consider upgrading the chuck. I have a Makita 3/8 cordless one that I use in reverse mode a lot. The original chuck was wearing out and would slip in forward mode unless I really worked at tightening it and would loosen, like yours...

All electric drills that have a reversing switch that I have ever seen have a locking screw in the chuck to prevent it from loosening. If you open the chuck jaws and look in the bottom of the chuck between the jaws it is normally a cross point screw. It must be removed to loosen or remove the...

Looking FINE Andy. Cam versus flywheel for the magnet mounting? Each has its advantages so it comes down to personal choice. If the magnet is mounted in the cam you have to make the Hall effect mount adjustable to set the timing and if it is mounted in the flywheel you can fix the Hall effect...

Nice engine Rick. Looking forward to seeing more on it. Gail in NM

One source of online free IC plans is: http://www.john-tom.com/html/ICEngines.html For boats one of my favorites is the Whippet which is the 6th one down on the above link. The original was built from castings, but an experienced machinist can build it from bar stock, as several have done. I...

Not that you need any further confirmation but: http://www.jbweld.com/pages/faqs "When fully cured, J-B Weld is completely resistant to water, gasoline, and about every other petroleum product or automotive chemical." Also other useful info about JB weld on that page. Gail in NM

George, For what it's worth, the flywheels on my hit and miss "Tiny"'s are 1.75 diameter by .468 thick brass with a 3/16 inch thick rim. The engines are governed at 3000 RPM and run about 6000 RPM with the governor disabled. In the hit or miss mode they hit about one in every 10 revolutions at...

Looks great George. Gail in NM

Very nice locomotive. Beautiful workmanship. 2.5 gauge is not very popular in the US, but I have a friend who I have been helping build a 2.5 gauge locomotive. We have been working on it for about 8 years and it has been running for about 4 years so all we are doing now is cosmetic additions...

Very nice. Gail in NM

I have been involved in several team builds here on HMEM. All had had some problems, but most of the problems were able to be resolved without too much effort but some of them took the considerable time. I think that the most important consideration is selecting a strong team leader or captain...

Matt, Another popular ignition system to consider is one of the offerings by S/S. I have used over a dozen of them. Can be triggered by either points or Hall effect device. Plus, the owner, Roy Sholl, gives great service and support. http://www.cncengines.com/ic.html Go to the order page for a...

Brian, In the for what it's worth department, all the drill motors that I have seen that have a reverse rotation on them have a locking screw on the chuck to prevent it from unscrewing. If you open the chuck jaws and look into the chuck between the jaws you will see it. It is typically a cross...

Like Ron said, one of the best sources was Small Parts. After Amazon bought them many of the many of the item became "currently unavailable" which is Amazon speak for we still catalog them but you will never see them again from us. Here are some of my favorite suppliers...

Just did a quick search for 1/32 cotter pins and there were lots of hits. Amazon has lots is both SS and carbon steel. Here are two links for 1/2 inch long ones -- one SS and one carbon steel. http://www.amazon.com/dp/B001P1X884/?tag=skimlinks_replacement-20...

Half round wire is a very common item for jewelers and hobby bead persons. Available in stainless steel, bronze and sterling silver and probably other metals and low cost. You probably would want 20 gauge which is 0.032 diameter. Easy to form by hand for just a few or build a simple bending...

The downloads were deleted during a server problem. They will be restored as soon as possible from the backup but techs are still looking into how it happened before they do the restore. Same problem with the engines tab. Gail in NM

Many years ago, think 1960 era, I was working on a communications project in the arctic regions. I had a Unimat lathe with milling column and table that was in a wooden box that I carried around to the various sites. Built several steam/air engines with that set up over a two year period. Not...