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View Full Version : CONVERSION: Warco WM18 Mill Stepper motor advice



Gotty101
28-02-2017, 07:52 PM
Hi, ive done a search but i could not find a clear answer. Ive got a WM18 warco mill that in total weighs about 220kg. Im looking to add steppers so i can use them as a powerfeed initially (maybe to use as a CNC later). Im thinking of using a 2 to 1 belt drive with the existing screws, and i heard someone say you need around 4.5nm of torque.

The only 4.5nm ones ive found at Nema34
https://www.cnc4you.co.uk/Stepper-Motor-Plus/Nema34/Stepper-Motor-4.6Nm-86HS78-4808-02-Nema34

On my router ive used these which are Nema24
https://www.cnc4you.co.uk/Stepper-Motor-Plus/Nema23-4Nm/Stepper-Motor-4Nm-60BYGH401-03-Nema23


If anyone can give me a idea of the required stepper size that would be great.

Thanks

Trev

Clive S
28-02-2017, 08:15 PM
Hi, ive done a search but i could not find a clear answer. Ive got a WM18 warco mill that in total weighs about 220kg. Im looking to add steppers so i can use them as a powerfeed initially (maybe to use as a CNC later). Im thinking of using a 2 to 1 belt drive with the existing screws, and i heard someone say you need around 4.5nm of torque.

The only 4.5nm ones ive found at Nema34
https://www.cnc4you.co.uk/Stepper-Motor-Plus/Nema34/Stepper-Motor-4.6Nm-86HS78-4808-02-Nema34

On my router ive used these which are Nema24
https://www.cnc4you.co.uk/Stepper-Motor-Plus/Nema23-4Nm/Stepper-Motor-4Nm-60BYGH401-03-Nema23


If anyone can give me a idea of the required stepper size that would be great.

Thanks

Trev

Trev I have converted the WM18 to CNC I used nema23 from cnc4you BUT is used ball screws not the original lead screws.

I geared the screws down 2:1 with belts.

Gotty101
28-02-2017, 08:34 PM
Thanks for the reply Clive. Was it the 4nm ones you used?

Clive S
28-02-2017, 08:55 PM
Thanks for the reply Clive. Was it the 4nm ones you used?

It was the 3.2 for x and y. 4 on z. But remember you have a bigger advantage with ball screws

Gotty101
01-03-2017, 10:20 AM
Thanks Clive,

Ill get the 4NM ones then.

Trev

Clive S
01-03-2017, 10:31 AM
Thanks Clive,

Ill get the 4NM ones then.

Trev

It would be a bit of shame to go to all the work of fitting motors and not changing the screws

Gotty101
07-03-2017, 11:24 PM
Hi Clive, yeah it would be best. Im just going to be running it manual and using the steppers as a powerfeed for now. Ill build my own controller that will drive the AM882s. So im just going to convert the Y and Z axis for now, but i guess thats how it starts, then the next thing ill be fitting ball screws and a stepper on the x.

Im enjoying learning playing with my router, although im had the double sided tap fail when ive been holding sheet ali down (thankfully i was fast on the stop), so ive got some toggle clamps now. Hopefully that will work out better. Its just the speeds and feeds that i need to learn better as i thing im being super conservative with it.