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Technical Tips, Builds, and Help / Re: Hobbing a Brass or Aluminium Drive Pulley to Stop Belt Slippage
« Last post by skeptic49 on 10 hours ago »
I enjoyed your video. I only wish i had the equipment and skills to use a lathe, etc.
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Technical Tips, Builds, and Help / Re: Hobbing a Brass or Aluminium Drive Pulley to Stop Belt Slippage
« Last post by Stoker on July 24, 2026, 06:55:32 pm »
Hey Jim .... seen your hobbing plenty of times and think it is really great, though I rarely experience any serious belt slip, but then I don't run very load heavy accessories much. Really need to build myself a Baker Fan some one of these days ... but I digress.

What I would like to ask you is what sort of pulley groove do you prefer to do your hobbing on. I realize it can be done on most any form of groove, but am wondering what you find works best a slightly flared U-shaped groove or a V-shaped groove? If you prefer a V-shaped groove, what angle do you find most effective, 90, 120 or some other degree of divergence???
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Technical Tips, Builds, and Help / Hobbing a Brass or Aluminium Drive Pulley to Stop Belt Slippage
« Last post by Jim on July 23, 2026, 10:24:46 pm »
I've posted up photos before of hobbed pulley drives. It's a process that works very well and gives a professional result (very similar to what Wilesco does on their drive pulleys). I've done well over a hundred brass and aluminium drive pulleys now.

Here's a vid I did a few years ago of the process -

https://www.youtube.com/watch?v=adQg7KxkGf8
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General Discussion - Model & Toy Steam Engines – Stirling Cycle – Flame Lickers – Small Antique Originals / Re: Microcosm site “not secure” ???
« Last post by Nick on July 23, 2026, 06:21:04 pm »
Quote from: Jim on July 21, 2026, 07:16:36 pm
Nick sent you a PM.
Thanks Jim, I tried messenger and email, but no luck yet…
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General Discussion - Model & Toy Steam Engines – Stirling Cycle – Flame Lickers – Small Antique Originals / Re: Throw back Videos - Post Yours Up
« Last post by Jim on July 23, 2026, 06:10:48 pm »
Quote from: MasonvilleEngines on July 23, 2026, 04:23:57 pm
https://youtu.be/x1RK_oRWIto?si=TQHtyf8DtKo1xfLW


Nice watching that!


https://www.youtube.com/watch?v=x1RK_oRWIto
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General Discussion - Model & Toy Steam Engines – Stirling Cycle – Flame Lickers – Small Antique Originals / Re: Throw back Videos - Post Yours Up
« Last post by MasonvilleEngines on July 23, 2026, 04:23:57 pm »
https://youtu.be/x1RK_oRWIto?si=TQHtyf8DtKo1xfLW
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General Discussion - Model & Toy Steam Engines – Stirling Cycle – Flame Lickers – Small Antique Originals / Re: 13x Stirling and Low Temp Engine Run
« Last post by Jim on July 23, 2026, 12:36:55 am »
Quote from: Fullraceflathead on July 22, 2026, 09:47:17 am
I'm glad to see that she has an interest in these things most of today's young generation don't have any interest in them.

It's mostly to humour me I think which is very kind of her.
I've done a couple of videos with my grandchildren. My oldest grandson borrows a steam engine now and again and runs the heck out of it and then returns it and borrows another lile a library :)

Though he turns 16 soon and gets his licence and girls will be taking centre stage :)
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General Discussion - Model & Toy Steam Engines – Stirling Cycle – Flame Lickers – Small Antique Originals / Re: Jims exploding steam engine
« Last post by Fullraceflathead on July 22, 2026, 09:48:06 am »
I agree completely!!!
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General Discussion - Model & Toy Steam Engines – Stirling Cycle – Flame Lickers – Small Antique Originals / Re: 13x Stirling and Low Temp Engine Run
« Last post by Fullraceflathead on July 22, 2026, 09:47:17 am »
I'm glad to see that she has an interest in these things most of today's young generation don't have any interest in them.
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General Discussion - Model & Toy Steam Engines – Stirling Cycle – Flame Lickers – Small Antique Originals / Re: Microcosm site “not secure” ???
« Last post by Jim on July 21, 2026, 07:16:36 pm »
Nick sent you a PM.
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