NEW TO THE PAGE HERE IS MY HOME BUILT METAL CNC

[dillonfitz]

just changed my coolant with "TRIM SC520" and this is some thick stuff. I only mixed it 5:1. Anyone else use it? I normally use astrocut synthetic


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[TheTimeKeeper]

How funny is this?

This is my setup...

[dillonfitz]

How funny is this?

This is my setup...

Lol. Nice! Idk if you've used it yet or not but I switched from my hertz spindle to this and it was a night and day difference. I love it other than the fact that it uses a special ISO 30 pull stud


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[TheTimeKeeper]

Yes, i have been using it for about 6 months. This pic was taken while still in the build stage.
It is using Clearpath servos on all axis and Mach3 with ESS/MB2.

Pull studs were an issue, but now i just purchase ones that are slightly larger and machine them down in the lathe.

I will post some more pics/vids later.

[dillonfitz]

Yes, i have been using it for about 6 months. This pic was taken while still in the build stage.
It is using Clearpath servos on all axis and Mach3 with ESS/MB2.

Pull studs were an issue, but now i just purchase ones that are slightly larger and machine them down in the lathe.

I will post some more pics/vids later.

Oh gotcha. I did find holder that fit these spindles. Idk if you need anymore but there made by armada tool

Amana Tool HO-112 50mm ISO30 Tool Holder https://www.amazon.com/dp/B000P4QK6Y..._fwOIzbZYVBJW8

And cmt

CMT 183.250.01 Chuck with "ER32" Precision Collet, ISO30 Shank, Right-Hand rotation https://www.amazon.com/dp/B000P4LJ60..._svOIzb11RZYYQ




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[TheTimeKeeper]

Thanks,

I have looked at those, but they are a bit pricey...

I've been using some of these for the light work:

ISO30 ER32 G2.5 24000rpm Precision Balance Collet Chuck Holder CNC Toolholder | eBay

[dillonfitz]

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[dillonfitz]

Does anyone use shrink fit holders?


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[dillonfitz]

Finally got the tool changer functional and almost done. I ended up swapping motors again. I didn't want to worry about heat so I put a newer Colombo motor on that has an hsk 40 taper.




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[CNCMAN172]

Very nice implementation on the tool changer. I like how the tools and holders move way out of the way at the end of the cycle, very well done.
Russ

[dillonfitz]

Very nice implementation on the tool changer. I like how the tools and holders move way out of the way at the end of the cycle, very well done.

Russ

Thank you. I still have to o make some kind of cover for the top of the holders. I never thought too much about it but being hsk holders, there a hole in the middle for the fingers on the motor. That's a great place for shavings to pack in and no way to get them out.



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[jahnj0584]

what a wicked machine.

[dillonfitz]

what a wicked machine.

Thanks a lot. I'm happy that I've been able to get it where it's at.


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[dillonfitz]

It’s been a while since I’ve posed anything so I figured I’d take a video while I’m sitting here watching this thing run.

This is a 1/4” depth of cut at 11000 rpm with a 10mm bit



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[dillonfitz]

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[Goemon]

How funny is this?

This is my setup...

How are you running the 380v spindle? Do you have a 380v outlet in your work area or are you using some kind of transformer or VFD that can output 380v from a 220v input? Or are you just limiting your top speed to whatever it can reach at 220v?

[dillonfitz]

How are you running the 380v spindle? Do you have a 380v outlet in your work area or are you using some kind of transformer or VFD that can output 380v from a 220v input? Or are you just limiting your top speed to whatever it can reach at 220v?

I run a transformer but I also have another vfd drive that’s 220v single phase input and 380v 3 phase output if you need one. It’s my setup that I used before. My motor now is 460v so I had to get a different drive.


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[skrubol]

Or are you just limiting your top speed to whatever it can reach at 220v?

FYI the spindle should still be able to run at top speed when run at a lower voltage, just with less power than when run with the correct voltage. For example, if you've got a 380v 8HP spindle that has a rated speed of 18k and max speed of 24k and rated current of 14A, if you ran it at 220V, you would use a 220v VFD (don't try using a VFD rated for a different voltage than what you've got, it'll fault,) you would set the current to the same 14A, but set the nameplate speed (or whatever it's called in your VFD, the speed where you reach max volts,) to 10,400 RPM (18k * 220/380,) max RPM to 24k, and your max power would be 4.6HP. Torque up to 10,400 RPM would be the same as the constant torque of the spindle running on 380 (which would be constant torque up to 18k.) You would then have constant 4.6HP between 10,400 and 24k RPM.
This only applies to water cooled and forced air cooled spindles. Spindles that have a fan on the spindle shaft (most air-cooled non-ATC spindles) would need additional derating due to reduced cooling at lower RPM's.