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Author Topic: Got tired of gear swapping  (Read 214 times))

Offline MJP

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Got tired of gear swapping
« on: May 03, 2021, 04:25:12 AM »
Got really tired of swapping gears on the lathe for different threads.
And hand cranking.  ;)



Marko
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Offline sb327

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Re: Got tired of gear swapping
« Reply #1 on: May 03, 2021, 02:56:51 PM »
Way faster than I can turn threads with my manual machine.

Pretty nice.

Dave
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Dave

Offline MJP

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Re: Got tired of gear swapping
« Reply #2 on: May 04, 2021, 12:25:10 AM »
Thanks,
And now I can turn conical and radius profiles easy without special radius cutters.
No more contour mapping turbo housings when cnc can turn the part.

Marko
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Offline sb327

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Re: Got tired of gear swapping
« Reply #3 on: May 04, 2021, 06:19:34 AM »
Thatís probably the biggest advantage.

I just started playing with lathe cnc. I made a saddle for my mini lathe with x and z. I still control spindle. Iíve still got some learning to do on the program side but initial results are promising.

Dave
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Dave

Online Rob M

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Re: Got tired of gear swapping
« Reply #4 on: May 04, 2021, 09:23:33 AM »
awesome.. Yes , swapping gears is archaic , and i hate it,  ..( fumbling with little c clips etc )
What controller system is that ??you running closed loop , servos , regular steppers?? it looks like an industrial control system/
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Offline MJP

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Re: Got tired of gear swapping
« Reply #5 on: May 04, 2021, 09:55:34 AM »
Thanks Rob,
This one is steppers for now, I had some on the shelf amd decided to use them. Have servos too but they are way too big.
That is the cheapest offline cnc controller that has all the turning G-codes you would need.
It's Xc609t and cost about 150Ä
Easy to setup and has spindle encoder support as well as Z indexing pulse support for X and Z axis homing.
Has normal Fanuc g code set so about all cam software have good post processors for that.

Marko
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Online Rob M

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Re: Got tired of gear swapping
« Reply #6 on: May 04, 2021, 10:02:55 AM »
wow , i wish id known about that a year ago. thats like a swiss army knife , 200 stored programs ,.. might be time to go back to my cnc lathe build.. Fusion post processor already has the fanuc turning as i recall.. I was trying to run mach turn , and the spindle index ( encoder feedback ) never worked  and at that time , the only alternative i knew of was centroid acorn ( $400 plus encoder from them )
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Offline MJP

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Re: Got tired of gear swapping
« Reply #7 on: May 08, 2021, 05:28:50 PM »
Well the controller is cheap, and does what is needed. Cant complain.
If you decide to go with this type of controller, be sure to buy only 40 to 100 pulse encoder. More pulses and the controller can't keep up.
I have 256 pulse encoder and the the channel is overrun around 970 rpm

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Online Rob M

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Re: Got tired of gear swapping
« Reply #8 on: May 08, 2021, 08:41:21 PM »
Well the controller is cheap, and does what is needed. Cant complain.
If you decide to go with this type of controller, be sure to buy only 40 to 100 pulse encoder. More pulses and the controller can't keep up.
I have 256 pulse encoder and the the channel is overrun around 970 rpm

Marko

makes sense.. one thing i noticed is that it appears to take all parallell port connections? ( db25 ) ..  im guessing an older computer is needed for loading gcode , and steppers need to run to db 25 pins ??
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Offline MJP

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Re: Got tired of gear swapping
« Reply #9 on: May 09, 2021, 12:40:31 AM »
Connectors are 4x db25 connector but no parallel ports here.
They just use the connectors as they are cheap.
There is encoder input and stepper output and 24 input and 24 output programmable for limits homing E stop and so on.
Program transfer is with USB
Controller has it's own 32bit cpu for pulse generator.

Marko
« Last Edit: May 09, 2021, 12:43:22 AM by MJP »
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Online Rob M

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Re: Got tired of gear swapping
« Reply #10 on: May 09, 2021, 10:00:56 AM »
thanks Marko , all makes sense now..
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