Hello From Somerset

[Ricardoco]

Hello all, join this forum as i would like to start building a cnc machine, obviously who better to ask than the people who have gone through it lol.

I am an apprentice engineer, well just finishing, and can do most things machanically minded, electronics are my downfall, although i do know some basics, so i will be asking for help on that matter lol.

Firstly, looking to be able to machine A3 size, plans have been drawn and started to be made, also its going to be running 16x5mm ballscrews, and the electronics i have sourced come with 3.1nm steppers, so can any one tell me if these are strong enough or are they going to need gearing, or just change my electronics totally.

Sorry for the big ask on first questions lol

Hi there welcome to the forum, what would you like to do with this A3 size machine you are going to build, IE what do you intend to produce with it? what sort of materials would you be using for your projects.. Give us a little bit of info and im sure the answers you require will come your way :)

[Jonathan]

3.1nm steppers should be plenty for a machine that size, unless you need it to go extremely fast. Using timing pulleys, with a bigger pulley on the motor, will help to get a high feedrate however this does of course reduce resolution.

You've not mentioned which drivers come with them? This makes a big difference as the maximum useful speed you'll get out of the motors is roughly proportional to the voltage they are run at.