3 Wheel X carriage attachment and X belt adjuster for the Tarrantula by jimwooly

Last crawled date: 3 years, 1 month ago

Tevo Tarrantula Left hand 3 Wheel X Carriage attachment with an X belt tensioner.
I have used ideas from various other 'Things' to create this 3 wheel belt tensioner after struggling to remove play in my X carriage using the original off centre adjustments.
The 'Things' I borrowed ideas from and gained inspiration from are -
https://www.thingiverse.com/thing:2034743 (Modular X Carriage)https://www.thingiverse.com/thing:1704100 (Belt Tensioner)
Hardware Required -
4 M4x10mm Countersunk bolts.
5 M4x35 either Button Head or Cap Head bolts.
1 M5x25 Cap Head bolt.
2 M5x35 Cap Head bolts.
1 M4X20 either Button Head or Cap Head bolts.
1 M4x40 Cap Head bolt.
10 M4x10 either Button Head or Cap Head bolts.
6 M4 Nuts.
2 M5 Nuts
10 M6 Washers
2 M5 Washers
8 M4 T-Nuts.
4 Wheels.
(Don't let this list put you off as some of the hardware can be recovered from the original X carriage mounting assembly)
Assembly -
1) loosely connect the centre plate to the X carriage with countersunk 4mm bolts and T-
Nuts.
2) Assemble 2 wheels to the RH plate using the long 5mm bolts (Place washers under the screw heads).
3) Attach the RH plate and wheels to the centre plate using the 5mm bolts and 5mm nuts.
4) Insert the spacers between the RH and centre plates, loosely attaching them with 4 4mm bolts and nuts. (Don't forget to place a 4mm nut into the recess on the bottom)
5) Insert the 3rd wheel into the 'Saddle' and secure with the short 5mm bolt and a nut.
6) Insert the Saddle assembly between the RH and centre plates, secure it with a 4mm bolt and nut.
7) Use the 20mm long 4mm bolt to tighten the saddle against the 20mm V channel which should pull the other 2 wheels into contact with the opposite side of the 20mm V channel.
8) When all 3 wheels are in contact with the V channel tighten the inner 2 4mm Counsunk bolts using a Hex key though the holes in the RH plate. When they are tight and the centre plate is secure to the X carriage, remove the 20mm long bolt from the saddle and ease the saddle away from the V channel. This will giive you access to the outer 2 4mm Countersunk bolts through the holes in the RH plate. Once all are tightened replace the 20mm bolt and ensure all 3 wheels are making contact with the V channel.
9) The remaining assemble is straght foreward.