Welcome to the forum. Have fun with your build. The RatRig looks like a solid design.

@dragonn I know the EMF calculator. It was probably the most visited webpage in my browser's history for quite a while while I was selecting new motors for my printer. 😁

@deckingman I think your idea is the better approach here. Also currently this is all in the just-wanna-have-it stage. I have absolutely no need for a MPCNC I would just build it to have it built.

And you are right, peripherals are (in my experience) more widely available for 12V than for 24V.

I am going to mark this question as solved with: 24V is always better for your steppers because they could run faster than with 12V. And a buck-down converter can always take 24V to 12V in case of peripherals not available at native 24V.

@c310 in the editor when you are writing a post on the compose side there is a ? next to the word ‘COMPOSE’ that has a link to the full Markdown documentation.

It takes you to https://commonmark.org/help/

https://www.thebalancesmb.com/an-introduction-to-metal-recycling-4057469
This will explain a lot.
tl;dr: They sort it before melting and then they also purify it when melted.

Thanks a lot! 👍

Together with a response I got offline (after posting this) this makes three times the same answer. I will go with cutting after soldering then. 🙂

P.S.: Building a small oscilloscope here (JYEtech DSO138mini). 😁

@phaedrux Many thanks for that and especially the YouTube link. I think even an old guy like me could cope with that.

@t3p3tony ok now smaller again.