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Gear cutting. Shaper motion
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Topic: Gear cutting. Shaper motion (Read 2638 times)
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Len-Tikular
238
Gear cutting. Shaper motion
«
on:
October 26, 2012, 07:49:33 AM »
Has anyone used their gantry with a 'fixed' preformed tool to cut gear wheels. Much like a shaper machine.
I have some involute gear cutters but they are far too big for my spindle. I thought I could afix a special shaped tool to my gantry and use back/forward (shaper) motion to cut my gear. The part would be rotated on my 4th axis at the required incremental degrees.
Thanks
George
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One step at a time!
BR549
6,965
Re: Gear cutting. Shaper motion
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Reply #1 on:
October 26, 2012, 11:44:19 AM »
IT has been done for years on lathes AND mills. BUT it creates a lot of side load on the gantry style mills/routers that you would normally not see. Running it in the X axis inline with the gantry would be the best.
Give it a whirl, (;-) TP
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Len-Tikular
238
Re: Gear cutting. Shaper motion
«
Reply #2 on:
October 26, 2012, 02:02:08 PM »
Thanks for the reply.
I'll try it om aluminum first.
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One step at a time!
ostie01
628
Re: Gear cutting. Shaper motion
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Reply #3 on:
October 26, 2012, 05:49:39 PM »
I don't think it's a really good idea.
What will happen is the tool will flex the gantry upward until it can't flex anymore and then it will take a good chunck of material and probably jam the machine.
Jeff
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BR549
6,965
Re: Gear cutting. Shaper motion
«
Reply #4 on:
October 26, 2012, 05:58:46 PM »
Light cuts grasshopper, light cuts. I have done it on a small lathe by hand, tool held in a flimsy toolpost and MANY MANY ins and outs. AND a very SHARP high rake bit.
(;-)TP
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TOTALLYRC
861
Re: Gear cutting. Shaper motion
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Reply #5 on:
October 27, 2012, 06:06:14 AM »
I did it to cut an internal keyway for a motor cuopling. It worked like a charm on my lathe. I took ~.001 per pass. It can be time consuming but for a one off it can't be beat.
Mike
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We never have the time or money to do it right the first time, but we somehow manage to do it twice and then spend the money to get it right.
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