Team Cobra Comm Lathe ?????

[craddock35]

Like the title says I have a Cobra Comm lathe that I have had for a while now but I am needing a new cutting tip and for some reason have not been able to find one that says it is for it. Are there any out there that will work on it that also fit others or does anybody know where to get the tips for it? I have also email a few places even Holmes and have not gotten response from anybody and it has been weeks and moths since I started sending e-mails asking different places that showed having lathe bits but didn't say it was for the Cobra.
Thanks for any help."thumbsup"

I am down to the wire on this now I have 3 motors that need built and the bit I have is junk. Lessons you learn from letting friends borrow your stuff, you get it back and have to buy parts to make it work.

 

[KJ10]

Contact EddieO (TeamBr00d motors). He may not sell them but, I bet he knows where to find them.

What size is the bar that the bit is made from?

 

[craddock35]

Contact EddieO (TeamBr00d motors). He may not sell them but, I bet he knows where to find them.

What size is the bar that the bit is made from?

I sent a e-mail through brood asking a while back and never got a response which was very odd for them. Maybe I will send him a message on here.

The bar is 1/4". I am thinking any 1/4" com lathe bit will work but hate to just guess and waste money.

 

[TEDROCKZ]

McMaster-Carr

1/4" AR

or if you want a diamond bit
McMaster-Carr

 

[craddock35]

McMaster-Carr

1/4" AR

or if you want a diamond bit
McMaster-Carr

Didn't even think to check with them. The number they have listed also matches the number on the bit it came with also. It is a AL bit though. Thanks"thumbsup"

 

[TEDROCKZ]

It is a AL bit though. Thanks"thumbsup"

Yup I fawked up in typing AR. Was thinking of my Orion lathe.

 

[EddieO]

Strange, I never got an email on it. I'll double check my spam box, as every so often the server sends it there.

Mcmaster carr is the place to get the carbides. I can send you a link to learn to sharpen it yourself or can just take em to a local machine shop. Its often easier to get a few, so you can just swap out in a pinch.

Later EddieO

 

[bob1961]

I have the same cobra and it takes a 1/4" square by 2" long bit....ebay has some too....

 

[craddock35]

Strange, I never got an email on it. I'll double check my spam box, as every so often the server sends it there.

Mcmaster carr is the place to get the carbides. I can send you a link to learn to sharpen it yourself or can just take em to a local machine shop. Its often easier to get a few, so you can just swap out in a pinch.

Later EddieO

It has been a month or so since I sent the e-mail to you asking about it. I should have sent another asking again but I kinda got caught up in other stuff and now that I really need it I had to do something pretty quick.
If the bits can be sharpened fairly easy, I would greatly appreciate the link on how to sharpen them. I don't really seem to have any local machine shops worth a flip, everything I have ever taken them unless it had to do with a car or similar they look at me like I am crazy.

 

[Calderwood]

I would like to have the sharpening link too.

 

[EeePee]

Go to sidewalk
Drag against sidewalk at 40 degree angle
Numerous times
Blow off
Reinstall

 

[EddieO]

The Late Big Jim's Benefits of Lathe Carbide Bits over Diamond Ones

There is a copy of it there. I think he touches a tad on it in the book and there is more posts out there on it, Just google BigJim lathe bits.

Later EddieO

 

[relic68]

The best way to sharpen carbide is on a diamond wheel on your bench grinder. Granted the wheels are very pricey, but it's the best way I have found.
McMaster-Carr

 

[ChronicCrawler]

How do you sharpen diamond lathe bits?

 

[EddieO]

You don't, you send them to a place that will relap them....not something you really can do at home.

Later EddieO

 

[Boopernator]

I just picked up a Team Cobra 2000 Pro comm lathe. After reading the instructions about the carbide bits I started some searching. I found this thread and wanted to revive it. How often do you have to sharpen the bit? And what sort of life span do i expect to get out of the carbide bit? I know it will really depend on how much I use it. Right now I have on Tekin motor that will be my first victim, I think I wrecked it at my last comp. I want to see if cleaning the comm will bring it back to life.
Also I would like a motor recommendation for the lathe itself. I have an Atomik 55 turn motor laying around that I think will be a good start?
Any advice will be helpful. I have already watched videos on Youtube on the process of using a comm lathe and I am sort of excited to try this out.

 

[EeePee]

I've beat on my bit pretty good and it still does a better job than not doing it at all.

I use a 27 turn on about 4 volts.

 

[Boopernator]

Do you know if it's a certain RPM to run the lathe at to get the best results? Or am I over thinking it. The 55 turn motor will have less RPM than a 27. The instructions say you want a smooth motor with less vibration. An I'm guessing you just plug a battery into the motor, no ESC right.


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[Boopernator]

I watched a very good YouTube video by Holmes Hobbies on using the comm lathe. I see that he used a servo tester and an ESC to run the lathe motor. Very informative video.


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[@shcrashem]

Following this thread, would love to revive my lathe.