Originally Posted by Telly  Wow it’s been a long time since I started this project, but it has been fun to do in my spare time.
Anyway I’ve got to the point now where i'm testing and already i've come into my first "problem". I’m using M6x1mm threaded rod, and well the rapids are koala bear slow ~100mm/min. I’m in need of a bigger pitch without going up in the diameter too much. I need some suggestions that can help me with this problem. I’m in the UK so any suggestion close to home would be good.
And another question, at the moment in running 7.5 degree steppers. Will 1.8 actually give a higher to feed speed? I know I will lose accuracy running a bigger pitch with 7.5's. But mini mill v1 will be born soon 
Thanks, Matthew |
Hi Matthew, Missed your original post.....I'd have agreed with all the comments anyway
I have a "Multimate" to build....it will cut foam rout MDF, draw, and cut vinyl....My choice for linear bearings is Ahrens design from cncrouterparts.com running on bright flat bar for the Y axis using 1.8 degree steppers, (7.5 is plain weird :naughty: ) run by drivers from Zapp in the UK not sure yet whether I'll be getting a litigation letter re the design copying.... You do realise this thread is worthless without pictures
Here's my X axis brace.