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Posted: Thu Dec 29, 2011 5:16 pm
by Sparkie
Quick question:
Does anyone use fresh engine oil when cutting on a lathe to help the bit cut?
I have cutting oil but its getting low and need to use something else in the mean time
Posted: Thu Dec 29, 2011 7:15 pm
by velocity3x
Sparkie wrote:Quick question:
Does anyone use fresh engine oil when cutting on a lathe to help the bit cut?
Motor oil will smoke and stink like hell, but it works.
Posted: Thu Dec 29, 2011 8:13 pm
by jrrdw
I would use water before using oil.
Posted: Thu Dec 29, 2011 8:41 pm
by ramses
Definitely. I think the motor (oil) is specifically designed to prevent machine tool like processes from happening in engines.
Edited by jrrdw.
And I apologize for my rant.
Posted: Wed Jan 04, 2012 2:05 pm
by JDP12
hey all, need some more stuff machined.
I need six of each of these designs. Should be made out of some sort of steel, preferably harder steel as they need to penetrate.
Someone wants to give me a quote that'd be great.
Posted: Wed Jan 04, 2012 3:37 pm
by jakethebeast
i could propaply make that Negishi Ruy shuriken, i just need better picture heh
Posted: Wed Jan 04, 2012 6:30 pm
by JDP12
What do you Mean by better picture? More details?
Posted: Wed Jan 04, 2012 10:59 pm
by Lockednloaded
I'm not really sure if this is what we're doing in this thread, but I'm just posting thanks to jrrdw. He machined some nice pistons for my hybrid!
My creation is the ugly PVC and epoxy one in the middle
Posted: Thu Jan 05, 2012 3:21 am
by jakethebeast
detail, yes. i just can't get anything from that picture
Posted: Thu Jan 05, 2012 11:31 am
by Gun Freak
I has lathe
Parting
Done
Random cuts in a wooden dowel
Edited by jrrdw.
Posted: Thu Jan 05, 2012 4:35 pm
by jrrdw
jakethebeast wrote:detail, yes. i just can't get anything from that picture
They are approx. .832" in diameter, drilled through and tapped M6 X 1.0 pitch threads and plugged with set screws sealed with Loctite. Don't know the length, I just used the PVC piston as a measure for the length only. The diameter was custom fitted to the cylinder with a clearance of approx .001"/.0005".
The off the shelf brass fittings are NOT machined to exact tolerances making it very hard to get exact measures. Further more are not made with enough thickness to machine to create exact tolerances. To do so in this case would have created weak spots not worthy of safely using this configuration.
Posted: Thu Jan 05, 2012 5:55 pm
by jakethebeast
jrrdw: i mean't the shuriken's
Posted: Thu Jan 05, 2012 6:15 pm
by jrrdw
jakethebeast wrote:jrrdw: i mean't the shuriken's
Ooooops
!
Posted: Fri Jan 06, 2012 11:23 pm
by ramses
Posted: Fri Jan 06, 2012 11:24 pm
by warhead052
Wow ramses. Nice! I assume its going on a 3way + qev + pneumatic cylinder combo?
