Hi All,

Quick update (no pics or vids yet).

Last night I completed the mechanical option for running two ballscrews (I still have parts for plan b if needed), by adding some extrusion bracing and additional bearing to the long "bendy" extension on the back of the 2nd ballscrew. Alignment was surprisingly easy, as it was a case of using the already aligned ballscrew and using a transfer punch to mark, drill and tap the new bearing mounting holes. Things are much more sturdy there now.

I have also added a 3rd pulley mounted on more extrusion and an axle, which I can adjust up and down to increase or decrease tension on the belt (better than what my car engine uses methinks :) ).

So ran some tests - 4,000mm/min was no problem at all, so upped it to 6,000 mm/min and its still fine, but getting quite scary at that speed (I'm wondering if I should back off of 500mm/s/s acceleration?).

I'm going to start some cutting jobs, once I have solved my VFD issue (see other thread in Electronics section) and then its back to the feeds and speeds learning curve :)

Cheers


Chris