The ISO30 ATC spindle has a cost of 1300€ to me, with the sales tax paid, here in the EU.
I import my own stuff, and can include extras in each lof, if someone wants some.
These usually arrive about once per month.
The spindle has 7000 rpm bearings, theoretically.
Im not sure, actually, what I will use to power it.
I will probable get a servo, and I will probably need to order it with the next lot of stuff.
My bridgeport mill 3-phase motor works.
I have a spare 2.2 kW VFD.
A new motor (second hand) is very cheap.
So, for maybe 100-150€ I can get a 2-3 kW motor, and I might do that to try.
I dont have spare, large, servos, only 750 and 400W ones, atm, but this changes.
I very much wish to do rigid tapping, and high-speed accelerations, ie servo.
Yet, a 2-3 kW servo is about 1600€.
The spindle should handle 5-7 kW, theoretically.
My machine frame, hopefully, will do 3 kW.
If it does, I will be Very Happy.
Anything above 1 kW cutting power is fine, for me.
The machine is very large re_frame, but I dont expect to do major metal removal. If I do start doing so, then a big servo is the first thing.
The lathe upgrade is progressing !!
Wenesday, first side plates, friday, last side plates, friday, the lockbar tap broke inside the spindle motor lockbar piece !
Today, after getting new M8 tap, main drive lockbar is in place !
This locks the spindle mount solidly in pace.
Material is 20 mm thick tool steel plate, and 30x50x350 mm bars, 3 of.
All on top of the lathe, where they belong.
I learned this trick from Haas.
When the motor is above the spindle, the heat does not go into the spindle and headstock.
Now, to disassemble all the main spindle, new saddle, mounts and sideplates.
Sand everything (dirty, noisy, heavy work. Yum. But goes fast, with a festool 1400W industrial hand sander).
Leave to dry till monday ..
2. or keep going, until x axis servo is in place.
Maybe option (2)..
Especially the ATC is handy , but the ridget tapping is not needed.
I use this:
For M5-M10 thread with my HF spindle 2.2kw , they also have it for other sizes and other kinds of thread mill.
It is really easy to set up using HSMWORKS or HSMEXPRESS, doing it with fusion 360 is not hard either.
In that case you would not need a servo but just a simple 3 phase motor.
NYCCNC guy has a video about thread milling, he also explains the downsides of ridged tapping etc...
Your completely right about thread milling.
My customer base thinks rigid tapping is a basic, needed, feature.
Thus, I have a commercial incentive to demonstrate it.
So that the stuff can be taken seriously.
In that case... as long as they are willing to pay extra for that functionality than you can go for that feature without making costly compromises.
Some pics or vids of this beast please?
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