R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road

Reply
 
Thread Tools Search this Thread
Old 12-09-2002, 11:14 AM   #16
Tech Elite
 
popsracer's Avatar
 
Join Date: Oct 2002
Location: "Hot, Sunny Southern California"
Posts: 3,120
Default

I have seen some of the Layshaft Lathes in operation and they do indeed have less vibration. But, I have examined Coms cut on both and you really can't see the difference in the cuts. The Bearing guides are fine as long as you lube them once in awhile.
Unless you are at the Top levels of racing, ANY Com lathe should be just fine. Buy what YOU like and can afford.
popsracer is offline   Reply With Quote
Old 12-09-2002, 11:44 AM   #17
Tech Master
 
Peter Busch's Avatar
R/C Tech Charter Subscriber
 
Join Date: Aug 2001
Location: Minnesota
Posts: 1,491
Default

For around $180.00 you can get the Cobra with a diamond bit and a battery box. These are very simple and work very well. Has anyone tried the Cobra Vari Drive?
Peter Busch is offline   Reply With Quote
Old 12-09-2002, 11:54 AM   #18
Tech Elite
 
seaball's Avatar
R/C Tech Charter Subscriber
 
Join Date: Sep 2001
Posts: 4,303
Trader Rating: 9 (100%+)
Send a message via Yahoo to seaball
Default lathe bits

just an fyi...

this was a big thread i think back in rctouring days. carbide bits, and perhaps diamond bits, can be found on www.mcmaster.com for under $4 each (carbide). i got a few of them and they work well. yes, the carbide wears quickly, but with a couple of them you can sharpen some while using the others. either way, i don't like to have to sharpen at all. i just wanted to let you know of a slightly cheaper option over the diamond bit.

later.
seaball is offline   Reply With Quote
Old 12-09-2002, 02:02 PM   #19
Tech Apprentice
 
Join Date: Nov 2002
Location: Cypress, CA
Posts: 75
Default

Quote:
Originally posted by spongebob
For around $180.00 you can get the Cobra with a diamond bit and a battery box. These are very simple and work very well. Has anyone tried the Cobra Vari Drive?
I have the Cobra w/Vari Drive. Great for powering the lathe & breaking in motors. You can adjust the voltage using a dial on the front and there are jacks on the front to plug in a voltohm meter to read either volts or amps. You really need a VOM to tell what voltage you've got dialed in.
dalem is offline   Reply With Quote
Old 12-09-2002, 03:14 PM   #20
Tech Master
 
newracer's Avatar
R/C Tech Charter Subscriber
 
Join Date: Oct 2001
Location: Timnath, Colorado
Posts: 1,523
Default

I have the Orion lathe, I really like how easy it is to set up for different arms and no need for a pinion on the end of the arm. It also comes with everything you need, slave motor, wires, switch, etc.
newracer is offline   Reply With Quote
Old 12-09-2002, 05:20 PM   #21
Tech Master
 
picco007's Avatar
 
Join Date: Dec 2001
Location: TX.
Posts: 1,814
Trader Rating: 91 (100%+)
Send a message via AIM to picco007 Send a message via Yahoo to picco007
Default Comm Lathe

Since your in Asia, The Hudy is probably your best bet. I have a fantom but they are hard to get right now. I like the cobra or xipp lathe too.....hope this helps.
picco007 is offline   Reply With Quote
Old 12-09-2002, 05:39 PM   #22
Tech Regular
 
sonneteer's Avatar
 
Join Date: Nov 2001
Location: UK
Posts: 337
Default

I had Team Orion and it sucked, within a week I swapped it for the Hudy, good but goes out of tolerance after a month and I had to to re-adjust.... I borrowed my friend's Cobra motor builder lathe (the one with the rubber bellows to protect the mechanism from copper shavings and it gave me such a fantastic cut with a carbide tip I could not believe, he then tells me it is several years old and it is a club lathe so he has cut hundreds of coms with the samelathe same bit.... so I am selling my Hudy... I think they are over-rated.... (the basic one anyways IMHO)
sonneteer is offline   Reply With Quote
Old 12-09-2002, 05:47 PM   #23
Tech Champion
 
Manticore's Avatar
R/C Tech Charter Subscriber
 
Join Date: Aug 2001
Location: Heaven
Posts: 9,999
Default

Quote:
Originally posted by sonneteer
I had Team Orion and it sucked, within a week I swapped it for the Hudy, good but goes out of tolerance after a month and I had to to re-adjust.... I borrowed my friend's Cobra motor builder lathe (the one with the rubber bellows to protect the mechanism from copper shavings and it gave me such a fantastic cut with a carbide tip I could not believe, he then tells me it is several years old and it is a club lathe so he has cut hundreds of coms with the samelathe same bit.... so I am selling my Hudy... I think they are over-rated.... (the basic one anyways IMHO)
a carbide bit give more shinny cut. it is because carbide is not as hard as diamond and the "shinny" surface is result from the worn tip of carbide bit pressing the comm surface. a diamond cut is very different from a cut with carbide.
Manticore is offline   Reply With Quote
Old 12-09-2002, 05:59 PM   #24
Tech Regular
 
sonneteer's Avatar
 
Join Date: Nov 2001
Location: UK
Posts: 337
Default

I meant it was a clean and there was no resonance causing the comm to grain up... It was simply a clean cut and not shiny polished.... My complaint with Hudy was mainly due to the Hudy resonates easily compared with the Cobra, not with the tip.

Last edited by sonneteer; 12-09-2002 at 06:01 PM.
sonneteer is offline   Reply With Quote
Old 12-09-2002, 06:02 PM   #25
Tech Addict
 
Join Date: Mar 2002
Location: Socal
Posts: 613
Default

the shiny look is something you do not really need. The dimond bit does give a very shiny look when new but it is just so the bit last longer( the dimond) as long as the comm is perfectly round is what you want. Things like a rubber matt or something to keep everything as smooth as poosible will do great.
teamAE is offline   Reply With Quote
Old 12-10-2002, 12:34 AM   #26
Tech Elite
 
Jack Smash's Avatar
 
Join Date: Aug 2001
Location: Reno, NV
Posts: 2,897
Trader Rating: 29 (100%+)
Default

Just remeber that the most important factor in lathes is how round they cut the commutator. If it looks like crap but is perfectly round your still good to go. If a the cut is too smooth it will take forever to break in the brushes.
Jack Smash is offline   Reply With Quote
Old 12-11-2002, 11:17 AM   #27
Tech Apprentice
 
Join Date: Nov 2002
Location: Cypress, CA
Posts: 75
Default Re: lathe bits

Quote:
Originally posted by seaball
carbide bits, and perhaps diamond bits, can be found on www.mcmaster.com for under $4 each (carbide). i got a few of them and they work well.
I have always wanted to avoid paying $12 each for carbide bits from my LHS, but didn't want to order them from a machinists catalog for $4 and get the wrong one.

I was looking at page #2327 of McMasters catalog and it looks like the 1/4" AR/AL bits in C-2 carbide would be the correct choice, any thoughts?
dalem is offline   Reply With Quote
Old 12-11-2002, 11:23 AM   #28
Tech Master
 
newracer's Avatar
R/C Tech Charter Subscriber
 
Join Date: Oct 2001
Location: Timnath, Colorado
Posts: 1,523
Default

that is correct but depending on your lathe you need the AL or AR. what lathe do you have?
newracer is offline   Reply With Quote
Old 12-11-2002, 11:27 AM   #29
Tech Apprentice
 
Join Date: Nov 2002
Location: Cypress, CA
Posts: 75
Default

Quote:
Originally posted by newracer
that is correct but depending on your lathe you need the AL or AR. what lathe do you have?
I have the Cobra lathe. If you are facing the lathe the comm is on the right. I believe that means I need a 'left' bit, or at least thats what it looks like from the picture in the catalog.
dalem is offline   Reply With Quote
Old 12-11-2002, 11:41 AM   #30
Tech Champion
 
TimPotter's Avatar
 
Join Date: Sep 2001
Location: Boynton Beach Fl > Randoph NJ
Posts: 7,481
Trader Rating: 14 (100%+)
Send a message via AIM to TimPotter
Default

Seaball, do the mcmaster bits come sharpened ?
__________________
Clean Title & Escrow|p3|TRF|Tamiya|SerpentAmerica|FSEARA|Team Butter|RC 3|Munno |RCTECH #29|EAMotorsports|BMI|Novak|SpeedPassion|RadioPost
TimPotter is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Trinity Tru Lathe Motor Comm Cutter Lathe maximum R/C Items: For Sale/Trade 4 05-14-2007 04:56 PM
Hudy comm lathe and Fantom comm lathe ACEDEAN R/C Items: For Sale/Trade 0 05-02-2007 11:27 AM
XIPP Super Lathe 3 / (pics) comm lathe diamond bit evostyle R/C Items: For Sale/Trade 8 12-01-2006 12:53 PM
Trade EXTREME COMM LATHE(Hudy)for MUCH MORE COMM LATHE JoeyE R/C Items: For Sale/Trade 0 05-07-2006 09:49 AM
Tire Lathe, Motor Dyno, Comm Lathe For Sale 17Mark71 R/C Items: For Sale/Trade 8 06-05-2005 01:07 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 10:20 PM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net