Scrap Heap Challenge

[John S]

Presumably you never used any of the spreadsheets for working out torsional stiffness and power of stepper motors required ?

Well done that man, practice prevails over theory.

[TrickyCNC]

Ha Ha !

Thanks Both
I read and read, then over sized all the MDF sections, and all was good.

Yes, build it - try it , saves much time over spread sheets and theory :)

I did spend a few weeks of nights acid cleaning the rust, and ordered some 3mm ball bearings for the bearing bodies.

The motors are actually vastly over the top. I am probably driving them at about 20% of their potential. But they were free, and with a multi meter across the windings , I figured out how to wire them up to my 542's, and all is good there too.

I am thinking of re-using them to make an Aly mill after I build my bigger MDF machine.

I bought the 542 drivers as a 3 axis kit from Zap, and have been very pleased with them. I've had it up to 500IMP rapids with 180IPM cuts :) but keep it at 180IPM Rap and 150IPM cuts for trouble free day to day cutting.

Rich