Problems machining brass – Bad finish !

[I.M. OUTAHEREParticipant @i-m-outahere]

I had a problem similar to this 2 weeks ago but i was machining some 36mm round bar for a T&C grinder .

It ended up being a belt problem as some of the lube i used on the back gears had flung off and contaminated the belt .

The belt on this machine at the moment is one of those horrible and expensive little vee belts that are only 4 or 5 mm across so it took only a small amount of contamination to cause some slippage .

After a clean all was well again but i think i will peg this system and go for a toothed belt and a decent variable speed set up so no more belt changes .

Ian

[Ketan SwaliParticipant @ketanswali79440]

Chris,

Read your "my messages". I have sent you a message.

Ketan at ARC.

[wheeltapperParticipant @wheeltapper]

Posted by VC on 16/02/2012 20:26:59:

Hi Chris

Long time ago I watched a pillar drill have one after the other of the drill bits be sharpened..

Problem was the beastie was running in rev…

 

 

 

Funny you should mention that, the same thought crossed my mind.

An old boy I know was having a hell of a job drilling a 1/4 hole in a bit a steel using a power drill, I suddenly noticed he had it running in reverse

 

sillier things have happened.

Roy

 

Edited By wheeltapper on 17/02/2012 13:11:41

[Chris machinParticipant @chrismachin]

Hi , Just a message to say thanks to everyone who contributed on here and especially to Ketan from Arc Euro Trade who called me personally. I have now solved the problem with all the help.

After trying all the different cutting tools i decided to strip the headstock and found some play in the front ball race bearing , the rear one seemed ok. I purchased a set of new taper bearings from Arc and fitted these.

As has been already mentioned the difference is amazing , the lathe runs far quieter , no vibration and the finish using the tipped tools is now superb on the brass or steel.

Would definitley reccomend the upgrade.

Thanks again everyone

[Ketan SwaliParticipant @ketanswali79440]

Glad to read you got it sorted.

Ketan

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