Gallery, Projects and General > Project Logs
Clock wheel cutter
raynerd:
Just regarding the clearence on the cutter as John mentioned earlier. I totally understand what you are saying, your saying that the bottom edge is following through into the work but John Sheadle doesn`t mention doing anything to change this on his plans, infact since the mounting point is off-set there should naturally be clearence on this bottom edge. I wonder what I could have done wrong?:
Bluechip:
--- Quote from: bogstandard on November 01, 2009, 01:16:27 AM ---Dave,
I remember it as the CURRY point.
RED HOT a**e, when you lose your grip on things.
Bogs
--- End quote ---
:lol: :lol:
Not keen on curries now ... Ricky Nelson did a song about 'em years ago ...
'Hello Vindaloo, Goodbye A**e' ..
Or similar .. memory fades ..
Bit :offtopic: ain't it?
Dave BC
raynerd:
I thought it was Johnny Cash:
"and it burns, burns, burns, burns
the ring of fire, the ring of fire, the ring of fire"
sbwhart:
Chris
Your adventures with gear cutting have been very interesting, at some point in the future I'll be attempting a clock, and I've been putting a lot of thought into making the tooling, that is one of the reasons I made the tool post grinder, I'm not going to give away too much about my ideas as I'm still working them up, and they may end up in a complete disaster, but if they work out I'll end up with cutters of the same module you are after, that you can have the use of with pleasure, but you'll have to wait a while .
I've though of using lantern pinion that can be made without a special cutter, but if you do this you have to be carful that you've enough room in the gear train to fit the bigger lanterns, I've also read than lantern pinions work better with a wheel with a slimmer tooth form.
Have fun
Stew
raynerd:
Stew, I`m intregued and can`t wait for you to make a start. If I have limited success with my own cutters, I may come crying to you to borrow some! Will yours be made from toolsteel and multi-tooth? If so, then you`ll be able to stick to normal pinions rather than lanterns. Regarding the lanterns the info I have been given it to use the circle through the center of the trundles (wires) as the pitch circle and make the wires 1.25 x module in diameter.
I`ve pretty much posted everything up here but a more concise account of my progress is here:
http://clockbuilding.blogspot.com/
I`m actually managed to speak to a few clockbuilders over the last few days and although they have pretty much said everything that has been mentioned here, they have really stressed the need to use engravers brass and not sticky "normal" brass. Although I appreciate I had many issues I do believe some of it was due to the type of brass. They all explained that sticky brass tends to bend and push out rather than cut out as flakes.
Stew, have you decided what clock you are attempting? I do so hope it is the same as my selection, I think I remember seeing it at your house, that way I`ll be able to watch your progress log and directly relate it to my build, there is no doubt I`ll get stuck at certain areas. I have purchased the plans and paid quite a lot of money for the plate brass for Colin Thorne's Skeleton Timepiece.
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