Comm lathe

Old 02-18-2003, 05:39 PM
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Default Comm lathe

Wats teh difference between a stock and modified lathe ?
And can the team cobra 2000K lathe cut rebuildable stock motor ? ANd is it a good lathe to own ?
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Old 02-18-2003, 08:49 PM
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A "stock" lathe is a lathe built for the old style non-rebuildable stock motors. Those motors needed to be cut with the armature still in the can.

The mod lathes will handle any mod or rebuildable stock motor. There's absolutley no reason to buy a stock lathe these days unless you have a stockpile of old style sealed stock motors to maintain.

I use the Cobra ProComm lathe for years on mods and rebuildable stocks. I've been completely happy with it.

T
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Old 02-18-2003, 09:00 PM
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Well to answer that it takes a little recent history lesson. Before rebuildable stock motors came along(& Trinity's Paradox was the first), you had to cut the comm while it was still in the motor can, & to do that you had to remove the brush hoods & use a stock comm lathe, which had a motor mount to hold the can still & a thin, narrow bit to get inside to the comm. Of course, now that we can remove the armature to cut the comm, we can do it with a mod lathe, so stock lathes are pretty much obsolete. And as has been said, the Cobra lathes are quite good, I've had my Cobra Pro Comm 2000 for about 6 or 7 years now & it still works great(especially after I installed a diamond bit, those things can cut for several YEARS without dulling if taken care of)....
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Old 02-26-2003, 02:53 PM
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Default So which is the best??/

On the market for a comm lathe. What s popular opinion on the best for the money.
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Old 02-26-2003, 05:52 PM
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Any of the lathes out there will do the same job, just make sure that you get a diamond bit. The HUDY lathe has a lot of accessories, yet it is a bit pricey.
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Old 02-26-2003, 07:09 PM
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On the topic of lathes, is the Power Base really worth the extra money for it?
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Old 02-26-2003, 09:05 PM
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Yeah, make sure you get a diamond bit.
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Old 02-26-2003, 09:48 PM
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Default Sushi Boy;

Since you brought it up.

Do you think a Diamond bit cut will make more Power than a good Carbide bit cut.

It seems alot of the experienced motor tuners are split on the Diamond/Carbide bit thing. Some say Diamond is best, some say Carbide works just as good and the price per cut ratio is about the same.

What are everyone elses experiences.......?

Thanks,
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Old 02-27-2003, 12:31 AM
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i use carbide...no complaints here!
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Old 02-27-2003, 12:19 PM
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Originally posted by alfa
i use carbide...no complaints here!

I have both.. Carbide and Diamond for My Hudy.. and I have not noticed any differance ..but in price

-Dave
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Old 02-27-2003, 12:22 PM
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The diamond bits last longer. My twister lathe with diamond bit is 11 years old and it still cuts great.
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Old 02-27-2003, 03:16 PM
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Originally posted by BBSpence
The diamond bits last longer. My twister lathe with diamond bit is 11 years old and it still cuts great.
Now thats a Name from the Past .. I think that I have 2 of there Stock motors laying around at home .


-Dave
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Old 02-27-2003, 04:25 PM
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The diamond bit seems to be a bit sharper. It STAYS sharp too. I had a carbide bit before and I didn;t liek it. It went dull fairly fast. The diamond bit is like hot knife through butter. It also gives a nicer finish. Just my opinion though
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Old 02-27-2003, 05:56 PM
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Good lathe discussion here too. Very informative. http://www.rccars.com/forums/showthr...=&threadid=374 AND here http://www.rctech.net/forum/showthre...0&pagenumber=4
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Old 02-27-2003, 09:58 PM
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I run an Eagle Racing Modfashion lathe with carbide bit. Have not had any problems but I would have liked to have had an end stop adjustment on it. I just use a piece of tape on the mount to tell me when to stop cutting. I think this is better than using the old eyeball.

Sam
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