Centroid Community CNC Support Forum

suntravel wrote: ↑Sun Apr 24, 2022 12:28 pm If it will do only 800rpm, you have max. 1200mm/min feed for the Z axis set up.

Here ist how ist looks with 3000 rpm:



Uwe

Super fast What are your max feeds for the axis?. What are your steppers set to steps per rev on the drivers?

These boys in Glasgow are pretty good on pricing and fast delivery. I ended up buying 2 each of the metric sizes between 1.0mm and 2.0mm in each of aluminium (AK10) and steel (T250). https://www.shop-apt.co.uk/threading-inserts.html I've been using 250rpm and 500rpm for my threading. That's still p...

For M10 /3000rpm it needs 4500 mm/min feedrate, If your lathe cant move at this rate, reduce rpm. Pitch 1.5mm x rpm = feedrate mm/min Uwe The max speed that CNC12 will allow me to cut this thread is 800rpm. If you try and program it faster it comes up with a Z error saying above maximum and will no...

tblough wrote: ↑Sat Apr 23, 2022 4:41 pm Here you go:

Thread Turning Methods.pdf

Thanks for the info I will read it and put it into practice.

It is because you are cutting a LH thread. If you want to make RH threads with a left turning spindle, cut from -Z to +Z and make sure that the Insert is at the right angle for RH threads. Use 3000 rpm and 9 passes. CNC should be faster than manual threading and this will give you better surface fi...

I have converted a Boxford 250PC and fitted a threading tool on the turret but because the spindle has to turn backward for the tool it will only cut a left hand thread. I cannot turn the tool upside down so the only other option is fit a threading tool in a boring bar and rotate the spindle forward...

The complete look of your internet site is remarkable, not to mention the content material![/url] That sounds interesting but I don't see any links to any site? @Phil - could you post a link if you are happy to share? Always great to see how others are progressing! I'm currently updating a Tree CNC...

you can specify feedrate with G53 using the L command. G53 X0 L20 ;move to machine coordinate X0 at 20 inches per minute without the L command G53 moves at max rate. I was going to edit my post to specify that but you beat me to it. I am going to use the M105 and M106 command so as the tool positio...

Yes it can change faster if you increase the jog speeds in the motor setup wizard. I am still tuning the settings. I have it set at 6400 steps per rev and 50 in the fast jog which sets the rotation speed. It uses a worm and gear mechanism. I was using G53 which uses the fast feedrate but it reversed...

Here is a video of the turret working so far. It needs some fine tuning and maybe some changes to the code to make it 100% reliable. I am using the axis driven macro with changes to the code. It uses the turns ratio for the A axis to determine the distance between tool changes then the M105/A P-3 F2...