This is a top mount large spool holder. It will work with Taz 1-5 and should work with Taz 6 when it is released. I should also work with other printers constructed from 80/20 or similar extrusions.
I used 1 inch PVC pipe to mount the spool.
This spool holder will accommodate spools up to 10.75 inches in diameter. The width of spool accommodated depends on the machine you are using.
You will need four slide in or drop in T nuts to install this spool mount.
Slide in: http://openbuildspartstore.com/tee-nuts-25-pack/
Drop in: http://openbuildspartstore.com/drop-in-tee-nuts/
Added files for the gMax 1.5+ or any printer with a 1.5 inch openbuilds type extrusion frame. You can use the stock gMax spool holder mounting hardware with this mount.
Added files for the Original Prusa i3 MK2.
The Prusa version requires heat set inserts and M3 screws to secure the mount to the printer frame.
Heat set insert used: https://www.mcmaster.com/#94180a333/=1640enf
Added mount for the top of a CR10 control box. The CR10 version requires 4 1/2"x1/8" Neodymium Rare Earth Disc Magnets. I used CA glue to attach the magnets to the pockets on the spool holders.
I printed with PLA and ABS. Any durable plastic should work.