New machined Stephenson links from Allen Models

[Harlock]

Allen models is pleased to announce our first Wire-EDM finished product, a highly accurate and fine-fitting Stephenson radius link and block set made of hardened tool steel. This item is complete and ready to install. This fits the Mogul, Ten Wheeler, American and 0-4-0. There is a version for the Chloe and Fitchburg Northern in the works as well, so stay tuned.

The price includes two link and block sets for one locomotive.

https://allenmodels.com/catalog/product ... link-block

[Bill Shields]

they look really nice...

the question begs to be asked..if you are cutting them with a wire...why the big 'mickey mouse ears' on the ends?

[Harlock]

they look really nice...

the question begs to be asked..if you are cutting them with a wire...why the big 'mickey mouse ears' on the ends?

Good question. Steve strongly believes in notching out the corners to prevent jamming. I don't think that will be a problem on this part given the accuracy, but it doesn't hurt anything.

Best,

-Mike

[Bill Shields]

the jamming is because of radius interference caused by the diameter of the cutter.

when you are cutting with wire at 0.008" diameter, the radius can be very small.

you are correct - doesn't hurt anything but looks a little strange for a wire part.

[Harold_V]

Any reason to be concerned with stress risers? The large radius in the corners would go a long ways towards lowering them, so they may be a benefit.

Harold

[Bill Shields]

no....is not a problem.

been making these links with wire for years with a .008" radius in the corner and they never break.

a SHARP corner is another matter, but .008, as small as it seems, is above that threshold

[FLtenwheeler]

Hi All

I have a set of these links and blocks. They are even better looking when you hold them in your hand. I still remember machining my set 30 years ago and wish I had this option back then.

Tim

[Bill Shields]

No question what they are a good product. Wire cutting hardened tool steel gives surfaces and dimensions virtually unheard of 35 years ago without hours in a Moore Jig Grinder.

I put AF NYLON bearings in mine 20 years ago (have a MITS WEDM MACHINE) and forget about them other than to splash some oil in their general direction every day or so when running.

[Cary Stewart]

Nice! Bruce Ward was the first person I know of to use the wire EDM machine method. He had them made for his Garrett which has Walshertz valve gear. They were simply beautiful and Bruce was very happy with them.
Cary

[Steve Alley]

Well the response has been great, almost sold out, so if you interested then get you order in. Three sets left, Looking to do the Chloe-Fitchburg next.
Thank You to all.
Steve Alley
Allen Models of Nevada

Holes in corner works as a wipe also. Dusty out there. But most likely block never see that far in the travel.

[Jawn]

I assume this is not a one time production run?

[Bill Shields]

people see a good product / idea when they see it -> good for you!