High Speed Spindle - Drilling & Mild Steel

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Originally Posted by routercnc

Might have got you excited over nothing. WC just means water cooled Chinese spindle
See my signature mk 4 build post 86 for where I was making sure design would allow for geared spindle drive

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Thanks, noted, checking.

Just read through the thread quickly. I can see the spindle body, lovely. Are you able / willing to share the design please? This is to use R8 / TTS?

Thanks

Quote:

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Originally Posted by Chaz

Just read through the thread quickly. I can see the spindle body, lovely. Are you able / willing to share the design please? This is to use R8 / TTS?

Thanks

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To be clear I'm not planning to build this any time soon. When the new machine is finished I'll run with the spindle direct and see how it goes. Significant stiffness increase should allow me to do much more than current machine.
But the indirect drive version of the spindle does indeed use the R8/TTS combo with tools changed manually via the draw bar. But I basically threw this together to make sure when the time comes I had space to do the upgrade. Not worked out pulley reduction and the speeds I might want or gone deeply into bearing size and max rpm or looked at any optimisation of parts.
I'll see if I can output a few of the key parts (bearings housing spindle drawbar) to give you a start point if you are ok with it on that basis. I don't know if this will work but has the right features. You need to think about hardening and grinding of the taper and possibly bearing journals unless you want to make a demo part first
I can do iges format which most cad programmes can read. Away from machine so give me a day or so.
If you use it and develop and build something please post it up as you'll probably get there before me ! Thanks

Ps with a bit of work a PDB can be added to give quick changes. I won't go this far but ATC is then possible if you want to add that as well

Quote:

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Originally Posted by routercnc

To be clear I'm not planning to build this any time soon. When the new machine is finished I'll run with the spindle direct and see how it goes. Significant stiffness increase should allow me to do much more than current machine.
But the indirect drive version of the spindle does indeed use the R8/TTS combo with tools changed manually via the draw bar. But I basically threw this together to make sure when the time comes I had space to do the upgrade. Not worked out pulley reduction and the speeds I might want or gone deeply into bearing size and max rpm or looked at any optimisation of parts.
I'll see if I can output a few of the key parts (bearings housing spindle drawbar) to give you a start point if you are ok with it on that basis. I don't know if this will work but has the right features. You need to think about hardening and grinding of the taper and possibly bearing journals unless you want to make a demo part first
I can do iges format which most cad programmes can read. Away from machine so give me a day or so.
If you use it and develop and build something please post it up as you'll probably get there before me ! Thanks

Ps with a bit of work a PDB can be added to give quick changes. I won't go this far but ATC is then possible if you want to add that as well

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Thanks, anything appreciated. I can open all formats with Fusion 360, so happy to look at the design. Might be worth doing something together? Im tempted to get something working that can be used by many.

I see at least some one is making lower RPM spindle in the standard 80mm mounts compatible with standard VFD's

https://www.youtube.com/watch?v=T-F_xZHEWDU

I'm surprised the Chinese aren't already all over it.

Quote:

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Originally Posted by Desertboy

I see at least some one is making lower RPM spindle in the standard 80mm mounts compatible with standard VFD's

https://www.youtube.com/watch?v=T-F_xZHEWDU

I'm surprised the Chinese aren't already all over it.

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I cant see how its done. Some form of gearbox on the front of the spindle?

Quote:

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Originally Posted by Desertboy

I see at least some one is making lower RPM spindle in the standard 80mm mounts compatible with standard VFD's

https://www.youtube.com/watch?v=T-F_xZHEWDU

I'm surprised the Chinese aren't already all over it.

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I can hear why they've disabled comments for the video ;-)

Chaz,

For info in case you missed it, TTS/R8 new thread posted here:
http://www.mycncuk.com/threads/11138...3218#post93218

Thanks

Quote:

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Originally Posted by routercnc

Chaz,

For info in case you missed it, TTS/R8 new thread posted here:
http://www.mycncuk.com/threads/11138...3218#post93218

Thanks

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Thanks, checking.

Quote:

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Originally Posted by Desertboy

I see at least some one is making lower RPM spindle in the standard 80mm mounts compatible with standard VFD's

https://www.youtube.com/watch?v=T-F_xZHEWDU

I'm surprised the Chinese aren't already all over it.

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It's made in China, just like every other round spindle.
If you download the "manual", it's only 6.4 amps, so it's power is actually less than most 1.5Kw spindles.

Just another company self-proclaiming to be CNC experts.