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Chatterbox / Re: My Latest (Tool) Score
« Last post by Kim on Today at 05:18:07 AM »
Thanks for the explanation, Willy. Those are some pretty interesting tools you have there!

Chatterbox / Re: My Latest (Tool) Score
« Last post by steam guy willy on Today at 01:16:32 AM »
Hi Kim, The top tool is like an early version of a die stock tool , there are 5 sizes of threaded portions which may have been used to cut threads or just hold bolts/screws to work on ?? there are file marks to indicate the number for the thread .... The hammer has two concave faces and use it on the allotment to bash in square wooden posts with out damaging the faces.. I have not seen any pictures on the web for a tool like this .....The multifaceted tool has  3,4,5,6,7,8,9,10,  accurately sized sides and I use it to index items to drill/file the stock for the different number of operations using a strait edge on one of the facets .....

Your Own Design / Re: The "2-Bits" V-Twin
« Last post by RReid on Today at 12:43:19 AM »
I've been continuing to piece together the valve train bits. Here can be seen the two rear rockers, their pushrods, and the two brass bushings that support those pushrods between the rockers and the cams. Notice that the pushrods overlap, one just behind the other to meet their respective cam. The two cams could be made individually and stacked, but I'm planning to try making them as one piece.

Those pushrod bushings are located by a shallow slot and fastened from behind with a 2-56 screw each through the crankcase cover.

A shaft was turned from 12L14 to carry the cams, the cam gear, and the points cam. All the shafts are generously over-long at this point, and the brass parts still need final shaping and prettifying as well.

The larger end runs on an Oillite bushing in the case cover, while the smaller end will also run in one that will be part of the gear cover/breaker points plate. That plate will be fastened via brass stand-offs soldered to the pushrod bushings. A drawing may help this make more sense.

Finally for today, the blank for the pair'o'cams. The brass is just a backstop. Since the part is clamped pretty near the edge of the chuck jaws a backstop helps in getting it set-up.

Hints, Tips & Tricks / ball or roller bearings at midpoints on a crankshaft
« Last post by tghs on May 15, 2022, 10:45:32 PM »
working on making some 1/16th scale "fake" Napier sealion engines.. on reading the history of the lion engine W12 (3 four cylinder engine on a common crank) a method of bearing shells so that larger ID bearings could be moved along the crankshaft and then the entire assembly could be mounted in the block.. these were high perforance engines and state of the art in the twentys and thrities...
Haven't been in the shed much the last 2 weeks, what with trips, overtime and a night at the opera thrown in. What time I did get in was mostly making some jigs and fixtures. But I did get this finished today.

 Not very much to say about it. I have plans for more interesting parts in the coming weekends, so I'm looking forward to that.
My Workshop / Re: Bill's Shop Renovation
« Last post by Mike Sanders on May 15, 2022, 09:07:15 PM »
It has been nearly 4 years since you started this project. Is it finished yet? A lot of us would love to know.
Machines, Tools and Fixtures / Re: Miniature mechanical demagnetizer
« Last post by crueby on May 15, 2022, 08:59:08 PM »

How did the soldering gun demag? I remember using one of those...
Your Own Design / Re: The Sabino Compound Engine
« Last post by crueby on May 15, 2022, 08:57:11 PM »
I agree with Dave that looks like the real deal. It always makes me smile to see the set screws. Just a tiny part on this super detailed build.

Cheers Dan  :popcorn: :popcorn: :popcorn:
Me too, those little details really make a difference!
Machines, Tools and Fixtures / Re: Miniature mechanical demagnetizer
« Last post by Kim on May 15, 2022, 08:43:49 PM »
Now that IS pretty cool! :)
Thanks for sharing it, Marv!

Machines, Tools and Fixtures / Miniature mechanical demagnetizer
« Last post by mklotz on May 15, 2022, 08:37:33 PM »
For bigger tools, I demagnetize with a bulk tape eraser (remember those?). For smaller tools I use my old Weller soldering gun.

However, when I saw Mark Presling's ingenious mechanical demagnetizer...

I had to have a miniature version for my in-house small job bench. Beyond its undeniable coolness, it would save me the trip to the garage to retrieve the soldering gun and could be spun with any of the Dremel/Foredom-like tools lying on the bench.

I was fortunate to have some 1" fender washers with a 1/8" hole that just fits a 5-40 screw to provide a shaft to grasp in the Dremel. Six Harbor Freight 5/16" diameter super magnets were epoxied to the washer in an alternating polarity configuration.

Spun at even a low speed, it does a fine job of demagnetizing small tools.

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