Gallery, Projects and General > How do I??
Cutting internal gear teeth
John Stevenson:
Best move the handle to work sideways, not vertical.
Unless you are 7 foot tall it becomes very tiring working over the top as opposed to working at waist level.
John S.
cedge:
John
You're getting lazy...LOL. I added an indexer to my smaller lathe spindle long ago and it worked like a charm. Now that I've got to know the bolt circle thingy on my DRO, making up custom plates wouldn't be much of a job.
I can envision using the DRO to make the gear blank work as it's own indexer by drilling the required number of holes of the right size at the proper radius. Seems like that would cut down on the hand slotting work too. Trust me.... I'm not trying to teach an old dog to suck eggs.... just tossing out ideas that I too might need for building the same machine. When your box has a hole in it large enough to fall through, you wind up thinking outside of it..... even if you don't want to....(grin) You've gotten my head going off in new directions, so I guess I can't complain too much.
Steve
John Hill:
John Bogs, I think you have some sort of vertical filer machine? You have a power hack saw too I think?
Perhaps you could sit down with a cup of tea and design some sort of jig for either rmachine to hold your blank while something like a shaped file or a form tool cut the tooth?
John Stevenson:
--- Quote from: cedge on October 05, 2009, 05:56:56 PM ---John
You're getting lazy...LOL.
Steve
--- End quote ---
:thumbup: Not really Steve, the odd keyway especially into alloy isn't bad but steel is another ball game.
I got back into the workshop game making parts for my racing bikes, at the time close ratio gears for Nortons were like hens teeth so I used to make my own.
Putting 6 splines into gear steel on 3 different gears per box soon teaches you the most comfortable way.
I had my lever horizontal and at elbow hight so my fore arm was straight, the lever was about 24 " long and any less would have been a right pain.
The £400 I paid for my first slotter was money very well spent.
John S.
cedge:
Sorry John S.... That one was actually targeted at the Bog-o-lounger....(grin)
Steve
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