Warco WM16 CNC Conversion.

**John S** · 04-01-2017

23's and 24's are compatible as regards hole sizes. It just the bodies that are bigger.

Just double checked with a digital vernier as I'm sat here 3D printing covers out for both.

6 done, 1,234 to go

**noyloj** · 04-01-2017

That's handy, thanks! I think JMC do a 3 Nm Nema24 60HSE closed loop hybrid stepper motor... but I'm not sure it will be compatible with the 2HSS86H drivers... The motor specs are quite similar as regards resistance, step angle, etc... only the inductance seems to be lower... any idea if I can use these together?

**noyloj** · 04-01-2017

It seems that with a motor with less inductance, the switching frequency will increase as well. This is why each stepper driver system needs to be “tuned” to the motor. If the motor inductance is different, so will its Ldi/dt be different. At the end it is this Ldi/dt which defines the TIME_ON period of the current chopping waveform...

These dives, being fairly good quality might be capable of running these motors however... time for a message to technical support!

**Robin Hewitt** · 04-01-2017

It wasn't what I thought it was...

http://www.warco.co.uk/milling-machi...g-machine.html

Suggestion: Ask Dean what motors to get and then bodge it together using those, the existing X Y screws and something clever but temporary on the Z.

Once it is "working", redesign it because you now have experience and understanding. Plus you have a "working" CNC mill so you can do a really neat job of the conversion.

**noyloj** · 04-01-2017

Thanks... it's kinda the plan in fact.

The initial build will be with the oversize motors that I picked up cheap all direct drive... but I picked up x,y(front mount) and z ballscrews and nuts from ebay for a song too complete with endmachining... all in £110. I'm basing my provisional build around Hoss's design (well known in a certain US CNC forum). When it's working and I've got my head round the drives, controller software combination then I want to make a steel frame CNC router, 'cos I've got a nice MIG and loads of free steel as well as a more permanent, rear y motor mount direct drive setup for the Warco probably with smaller motors! Shhh though don't tell anyone about the reduced size motors in the final phase!

**noyloj** · 04-01-2017

So I went ahead and ordered the UC300ETH as well as their BOB HDBB2 and UCC software... Not the cheapest solution but after a bit of research probably about as good as anything else... and made in Europe... the same Europe that we are leaving... so that we can't trade with easily anymore... whose idea was that!

**noyloj** · 04-01-2017

It's me again! Your friendly neighbourhood upstart a&*$%£e! Well it seems that my drivers are copies of copies of Leadshine ES-D 808 drivers... Leadshine offer free tuning software on their website for this driver which is also listed as being appropriate for the 3Nm Nema24 frame ES-M22430, which I will probably replace my 8.5Nm x and y axis motors with... (possibly shifting one of the 8.5 up to the z position to replace the 12Nm) but that's gonna be after I've finished the preliminary build and can cut some metal...

Hopefully the tuning software will run on the copy drivers... fingers crossed!