Triple Z (3Z) Screw Rat Rig V-core V2

Last crawled date: 4 years, 3 months ago

This is an follow up for the Triple Z (3Z) Screw Rat Rig V-core and the V2 upgrade.
As it it it's a mod for those who had the V1 and upgraded to V2 as the old bed motor mounts are required. Let me know if you are interested and I'll make plastic replacements for the V1 parts you maybe missing.
It's better than my previous design as it:
uses less hardware
uses the metal plates
is smaller and faster to print
is easier to assemble
tension around lead screws is much better
Possible configurations
Left, Right and Back
Print one of each set which will require only 8 F623 bearing but no tension options on the front (i.e. if you like symmetrical stuff ;) )
3x Back
Print the Back set 3 times and get 12 F623 bearing this will allow you to mount the tensioner on the front of the printer.
Hardware required
12x 30mm M3 screws
12x M3 hex nuts
3x 608 bearings
8x F623 bearings
3x M8 GT2 pulleys
1x M8 GT2 pulley for the motor pull (I'm using a 40T one for a 2:1 reduction)
1x big loop belt (I'm using 1200mm but there is tolerance +/- 200mm as the tensioner can be put everywhere around the frame)
1x smaller loop belt (for the motor)
1x 16T-20T idler puller for the tensioner