turning a piston rod end with a CNC lathe (mach3)

[douro20]

I never had to do automatic threading; I wish I knew the command and arguments.

[VonenEsp]

In those retrofitted CNC how does the computer know the revs at the chuck for threading purposes? Is there some device to measure it or you rely on the machine/motor specs?

Thanks in advance for any reply

[aryesegal1988]

@VonenEsp I've got no personal experience with this, but I believe that you could hook up a electronic tachometer (with the right specs of course, so it would fit the rest of the system) to the lathe chuck, and connect it to the PC which has the CAM software.

[GlassByThaddeus]

That thing is so slow. Ten years ago my daewoo would run circles around it. Plus it had an 8 tool turret

[Jagethemage]

very very odd looking lathe / servo. what brand is this one? if you dont mind me asking

[gsr200guy]

Nice. But it looks like you were using a dull bit.

[lexichronicle2]

the rapids do kind of suck on these, given the age, so some newer servo's in place of the steppers is a good idea

[lexichronicle2]

there's that familiar greeny blue paint :P

denford are a really nice company. the machines are nice and solid, the people there are like a family - they will still pull out specification sheets and wiring diagrams for machines made in the 80's.

that membrane keypad on the front was a mistake though. should have stuck with normal push buttons. the number of times I managed to miss out something or make a decimal error because the keypad didn't register it was embarrassing

[ashokakbari]

I am interested to know about turret... Is it homemade?

Let me know if you have bought i m interested to buy this kind of.

[emeraldprecision]

If you run the job with coolant it really difficult to see anything when filming it.

[gbowne1]

could you post a better closeup of the panel in 0:00 to 0:07 of the video?

[bhers94]

si cre matin

[BuickDoc]

where is the piston rod?

[graffitiballz]

did you jack that tool post off an old warner and swasey turret lathe ?

[dradef]

irish, you are calling him a retard?

maybe you should take another look at the video; you MIGHT notice that the "collant hose" (as you call it) is actually a mist coolant nozzle for MQL.

[IrishWarCry11]

Well considering i made the comment 4 months ago, i actually don't know what I said, so therefore i have no idea what your talking about nor do i care, sorry if i made a typo?

[droogeh]

What's the controller you are using? looks interesting

[douro20]

It looks like he built its own. He's using Artsoft Mach 3 to control it.

[delacerdaa]

Im in school for CNC right now, Im taking a shop class on a Fanuc contolled Lathe machine, I start on the 13th of this month. Ive taking a computer class and blueprint reading class too so far. But I think Id like to get into something else after I finish with this school.

[pm400]

what is the power (Nm) for the step by step motors?!

[helmut591]

9 Nm, but i want to replace the stepper motors by AC- servos, the rapid speed is too low for some threading work.

[Nhyf]

Totally cool man :-)

[robsmtbike]

nice video, i am just starting to aquire the stuff to retrofit a mini mill to cnc.