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Retro Hobbing.....(Worm Gearing) I've been busy hobbing my vertical and horizontal transmissions I made some years ago plus a few other accessories. Things I've learned from doing many now - what works for me. Lathe 400rpm Use lots of WD40 and a toothbrush to keep clearing away the chips Very...

G'day Steam Chick :) I have an immense amount of model & toy steam engines in my collection and many of them have hobbed drive wheels from the factory. Its really handy for me now being able to duplicate the hobbing (though I would guess that they did it much differently) on homemade drive...

Timo I bought the Tubal Cain spring making book many years ago and must admit to very limited success in my spring making adventures.

G'day Timo here's a picture of Wilescos drive belts - https://www.collectormodels.com.au/replica-scale-models/working-steam-model-live-steam/display/467-wilesco-flexible-drive-belt-50cm-long-pack-of-5 Jensen's are a little thicker than Wilesco's 2mm one and have hooked ends (they are easier...

G'day krypo, this method will work great with Jensen spring belts (which I like better than Wilesco spring belts). Here's some photos of a vertical transmission that I made some years ago that I have 'retrohobbed' one side of the drive pulleys on this morning.

You totally don't seem to have any understanding of running accessories off toy and model steam engines. You erroneously went off the mark numerous times. LOL belt wear? The currently largest maker of toy steam engines in the world is the German company wilesco, all of their drive pulleys have...

Thanks Timo, I do have quite some weight in taps if I was to weigh them all together....but I don't own any spiral fluted taps.

Hobbing a Pulley for driving accessories for Model Steam Engines or Toy Steam Engines This worked out really well for a first attempt, I've been wanting to try this for ages to stop belt slippage on pulleys and drive wheels when running accessories off steam engines under load which can very...

Jensen 20g Steam Engine Driven Leonardo DaVinci Mechanical Drum. This was a lot of fun to make and to modify, the mods made the kit a real model or toy steam engine accessory. Its extremely loud in use! It was easy to spray paint the kit before assembly and to make the drive pulley on my metal...

Metal Lathe Centering Roller Tool for chucked item A simple idea how I quickly center up small pieces of offcuts. Not saying this is how anyone else should do it, but it works accurately for most of the work that I do. It doesn't replace your Mitutoyo dial indicator for super accurate work, but...

Modified PM Research #7 Steam Engine & MSM 4" Copper Boiler I've really enjoyed this project doing some mods to this engine

Homemade Steam Engine & Gold Stamper TTB02 By the late Trevor Woolan

Large Scale Tarot Stirling Engine Take Two running a drop hammer off a DIY Supaburner

PM Research Solar Engine #3 running a Gold Battery/Stamper

Enjomor 6cc Hit & Miss Engine - Last Mods I Think? Somehow I doubt it though, these engines are made to muck around with.

VE-01 Crossbeam Vacuum Engine added a drive pulley and running some accessories, a Fleischmann Sausage Man and a DIY Baker Fan.

Looks fantastic Jason.

Enjomor 6cc Hit & Miss Engine Modifications and running and hit and missing. Many many thanks for all the help & suggestions I've received. Just a REALLY great looking Hit & Miss Engine, any other hints if you think it could run better, much appreciated as always.

On a temporary board and needs some fine tuning, but running now…..thank you for your help 🙌

Just to check as my other H&M engines operate using a Hall Sensor. Do I adjust the timing (spark firing) by adjusting this brass piece that pushes down to make the spark at TDC?