Lil' Henry Build

Gus,
Nice work on the "clean up" project and good luck with the gear making. Be aware that the numbering convention for the cutters is different than that used in the US. Use the information engraved on the cutters and you'll be jake

Cheers,
Phil

That cleaned up pretty nice! How does the crankshaft look? Can't really tell from the picture.

Chuck

Hi GUS,
The old engine looks very new!!!!! Are you planning to get it spinning again.Please post this engine spinning and putt-putting away.


From Another Gus.

Other Gus,
Yes I will get it running, sooner or later, probably next in line. I now have to concentrate on Lil Henry. Have you got anything new planned after you get the Rupnow engine hitting and missing?

Chuck,
The bearing surfaces held up pretty good, crocus cloth, should be all they need. I've already decided to abandon the enclosed bearings and go with bronze. First factor is the metric sizes and second is cost, (more important to my deep pockets, my free time is free). The crank is a concern, I'm hoping I can get it run true. The throw is trapped inside the connecting rod, which means I will have to reassemble with the rod and bearing in place. Not the best situation. Worst case, I'll make a new conn rod and crankshaft.

Thanks Phil,
The cutters have the gear tooth range marked on them. I don't anticipate any problems. I opened the package, looked at one of them and set them back on the my work bench.

After the Lil' Henry project stalled, I worked on a few other things, the William for one and started making improvements on my Wyvern.
At this point I proudly can say it is finally a finished project.woohoo1

In the past couple months I've managed to evict the little devil that resides in a lot of the engines we amateurs build.
I'm walking on clouds, it's running great. I spent most of yesterday looking and grinning while it ran for almost 6 hours, only stopping when I fiddled with the fuel mix trying to get it to run consistently somewhere in the 300 rpm range, 430 was it's best. It will run for hours like that.
In my somewhat less than humble opinion, that ain't bad.
You should see it soon in the Finished Projects forum and you can bet I'll bring it to CF, if I don't wear it out by then.
Today if, I can manage to stay away from it, I'll try my hand at the gear for Lil' Henry, maybe.

GUS

Hi Gus,

Wyvern.
At this point I proudly can say it is finally a finished project

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That's good news. I know you were having some trouble with reliable running last year. That's exactly where I'm at now with the Bonzer project. I had a few good running days and now it's almost dead. I hope to see you at Cabin Fever to get your ideas.

Cheers,
Phil

Please advise nearest airport to fly in. Hopefully I can get to fly in to visit Cabin Fever and talk engines with HMEM folks.

If I ever fly into Cabin Fever. Look out for a tanned/crew Singapore Chinese with sunglass but no fish in hand walking around the fair asking questions with some Chinese/Kentuckian accent.

Gus, it would be nice to meet you and a few others that live way far away.
If you do come just where a t-shirt with a fish on the front. We'll find you.
I'm thinking Harrisburg PA (30 miles or so)would be the closest airport, but that would probably involve a connecting flight from one of the major airports. Philadelphia and Baltimore are not that far away, probably about an hour plus? not quite sure. I think Baltimore is closer.

GUS

Almost forgot, GEARS. No problem. I can't wait until I think up a reason to make miter gears.

Great looking gears. Were you able to make them on the first try or did it take a few attempts? I am still trying to decide if I want to purchase gears for my Kerzel Hit and Miss or buy some cutters and make them.

Great looking gears Gus. Are you sure you JUST got the cutters?;D Took me a while (Much, much more than 24 hours) before I'd show a picture of mine.:wall:

Cheers,
Phil

It was my first try with the cutters, I had two failed attempts a few weeks ago, one with a homemade fly cutter another with a slotting saw and file. Both were disastrous.

Setting the mill up and getting the centerline correct took longer than the 15 cutting passes. I measured the tooth depth and set that on the mill and took the whole tooth in one pass thru both 1/8" thick blanks.

Yeah, I giggled a little after pressing them from the arbor and tested the mesh. I'll be looking forward to trying bevel gears.

Just think, seven weeks and $100 to make two little 15 tooth gears, probably a world record.

Weez, you'll spend the money on the gears and end up with two gears, but with the cutters.....
You can buy just the two you need or the set of 8.


Give a man a fish, you feed him for a day. Teach a man to fish, you feed him for a lifetime.


Build a man a fire and you keep him warm for one night. Set a man on fire and you keep him warm for the rest of his life. (I just Binged that)

GUS

Those are good looking gears you made Gus. What is the designation of the set you got ... Module# or ??

I am close to getting a set since everything I want to build needs gears.

Cheers,

Tom

Hi Tom, the cutters you need will depend on the size of the gears you need for your project, most importantly , the distance between centerlines.
I had the luxury of making that distance to work with the gears I had I hand, or at least the gears I thought I had. I matched the gears in a Boston gear catalogue and used that as my guide to get the PDs.

But it's a bit more complicated, see this thread I started a while ago.

http://www.homemodelenginemachinist.com/f26/gear-cutter-help-22628/

There is some good advise in there.

This is the set I bought:

http://www.ctctools.biz/servlet/Categories

This will give you the breakdown of the cutters, by the range of teeth needed for the gears you need, in that set.

http://www.ctctools.biz/servlet/Det...er=http://www.ctctools.biz/servlet/Categories

The module I used is M1.

I hope this helps, if your confused as I still am (just a little), there are others that can help more.

GUS

Thanks for the info Gus. I ordered a set of the M1 cutters. They should do what I need for the engines I want to work on. I do have Ivan Law's book and am trying to work through that, and I will continue to research.

Thanks Again

Tom

wagnmkr said:

Thanks for the info Gus. I ordered a set of the M1 cutters. They should do what I need for the engines I want to work on. I do have Ivan Law's book and am trying to work through that, and I will continue to research.

Thanks Again

Tom

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Hi Tom,

No worries.

You have GeneratorGus and The Other (Singapore) Gus to back you up on gear cutting.
There are 8 cutters per Metric Module Size. Not been able to find this vital info in Ivan Law's book. Find Metric Gear Modules easier to understand and absorb.

All success in your gear cutting. ( My latest gear cutting been disastrous with worm gear hobbing with spiral tap. Got 71 teeth instead of the 72 T I was planning for.)

The Other Gus.

Got 71 teeth instead of the 72 T I was planning for

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Gus, that's only an error of 1%. Plenty of folks (weather forecasters, politicians, economists etc.) make a very good living makings errors much larger than that.

Cheers,
Phil

Philjoe5 said:

Gus, that's only an error of 1%. Plenty of folks (weather forecasters, politicians, economists etc.) make a very good living makings errors much larger than that.

Cheers,
Phil

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Gus will make a bad politician. Will find a 72 t gear or make a 72t dividing plate to cut 72 gashes as per Ivan Law's method so as to hob/hope/dream of successfully hobbing 72t worm wheel.

OK Singapore Gus, you've peaked my curiosity. What are you going to do with worm gears? Or is it a surprise?

Making worm gears doesn't seem like it would be very simple. I hope your taking pictures.

GUS

Generatorgus said:

OK Singapore Gus, you've peaked my curiosity. What are you going to do with worm gears? Or is it a surprise?

Making worm gears doesn't seem like it would be very simple. I hope your taking pictures.

GUS

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Hi Gus,

Was visiting a good friend/ex-pressure vessel supplier in Malaysia. Happened to see some hollow sections lying around and asked for a 4 x 4 Hollow Section and 4 x 4 x 3/8 m.s. plate. Some months back came across a very good looking 4'' RT. Could not resist building it.

Hobbed worm gear with 12mm spiral tap.I thought I could get away w/o cutting 72 gashes/notches to get 72t but ended up with the odd 71.Idea came from Youtube which made it so easy. RT made with DIY worm gear.
See fotos. For details please view my post on 4'' RT. RT far from completion as it was a distraction from finishing up the Rupnow H&M.

Happy RT builder Gus,
I just got done reading your thread.
Pretty gutsy adventure with nice results.
GUS