Centroid Community CNC Support Forum

I have set up rigid tapping today works well even with my 400 Line encoder.

Timing suggestions from Acorn are way to slow for a servo spindle, reduced them to 0.2s, would probably go even faster

Regards

Uwe

Muzzer wrote: ↑Wed Dec 15, 2021 9:31 am

suntravel wrote: ↑Sun Dec 12, 2021 12:32 pm

Muzzer wrote: ↑Sun Dec 12, 2021 12:15 pm

I think you will be doing well to manage M16 tapping in steel - Kennametal reckon 23Nm would be required.
https://www.kennametal.com/us/en/resour ... power.html

With 5.73Nm and 1:1.63 you may be talking 3.5Nm. Besides, I can't imagine how you'd hold an M16 tap in that little machine?

Jep I meant M12 or M16x1,5, works both with the original motor also.

Needs 9,1 Nm only slightly over the max. torque that is no problem for the 2s tapping.

High torque while tapping is less of an issue than drilling with big drills in a light machine.

Regards

Uwe

Wow, you must post a video of this Sieg X2P tapping M16 in steel. That will be impressive!

Here you go, only the mill is not a X2P, because I have a Paulimot F307



But I must admit its on the edge, needed some tuning in the gain parameters .

Anyway it works and I know now that I have wired the Alarm Output from the servo correct

Regards

Uwe

by the way, the reason why I was sure it works with the JMC was that we are tapping M12x1.75 in series on a Traub TNL16g bored up to 22mm.
1kw Mitsubishi Servo for the driven tools, 4.6Nm rated at the tool holder drive shaft which is 2:1 reduced in the toolholder







Regards

Uwe

M5 tapping



Uwe

Here is the wiring and parameterlist to use JMC JASD15002-20B driver in speed mode with Acorn.

Was asked for it, but better here than with PM



Uwe

That is pretty impressive but I'd expect it to tap the hole right through in one pass, which is the idea of machine taps. It looks as if you might have created a new process called "inertial peck tapping"!

Muzzer wrote: ↑Sun Jan 09, 2022 5:19 pm That is pretty impressive but I'd expect it to tap the hole right through in one pass, which is the idea of machine taps. It looks as if you might have created a new process called "inertial peck tapping"!

Was my first take on setting up rigid tapping, driver and Acorn needed some tuning, but now it goes in one shot.

14.5mm drilling was more a problem, Z overload with required feedrate. But also solved now with 12 instead of 4Nm Stepper

Uwe