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Post by Garry Coles on Apr 10, 2019 14:25:59 GMT
Hello,
I’m currently building the 2 in Durham & North Yorkshire traction engine. Blackgates Engineering have supplied me with the various gears, but can no longer supply the set of 5 compensating gears as the supplier has retired. Can anyone point me in the direction of a supplier of finished gears.
Many thanks
Garry
Garry.coles762@gmail.com
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Post by ettingtonliam on Apr 10, 2019 19:43:04 GMT
HPC or Muffet gears?
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Post by suctionhose on Apr 11, 2019 5:46:57 GMT
you need bevel gears for those unfamiliar with traction engines. Suggest posting your question on the Models section of Traction Talk Forum. Or contact model TE suppliers e.g. MJ Eng, Little Samson Models, Steam Traction World, etc
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Post by Jim on Apr 11, 2019 6:19:36 GMT
Have you given any thought to cutting your own gears? I used Ivan Laws's book Gears and Gear cutting, it's No17 in the Workshop Practice series and I found it a godsend, easy to follow too. I used the methods described to cut all the gears (10DP) including the bevel gears Ross mentions for my 3" Burrell Single Crank Compound Traction Engine.
I did have to buy a rotary table with indexing capabilities but that has many uses in model engineering and is worth having. The set of 10DP cutters needed I was able to borrow from another club member. You may be able to hire them.
This is a photo showing one of the crown wheels for the engine's compensating gear being cut as parallel depth bevels. and here cutting one of the 2 main 100 tooth drive gears.
All the work was done on a Hafco Mill Drill and without any problems in terms of rigidity etc.
Just a thought.
Jim
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Post by Garry Coles on Apr 11, 2019 6:45:13 GMT
Thanks for the info. First I need to see if anyone can do the job for me. It will be a last resort to try and cut my own gears. Garry
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uuu
Elder Statesman
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Posts: 2,808
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Post by uuu on Apr 11, 2019 18:18:10 GMT
I've used HPC gears for an electro-mechanical lathe clutch project. Very good gears they were too, but costly.
Wilf
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