About this 3D model
This is an adjustable width spool holder.It is meant to mount on the bottom of a solid plate. http://youtu.be/8fSdvyERoJE I'm sure if the inner parts are needed for stability. Most spools should fit, I changed the design a little bit I hope the taulman spools fit now, but no promises. Some additional parts needed:4x LM8UU linear guides2x 8 mm steel routs4x DIN 7991 Screws M8x254x DIN 934 M8 nuts8x washer 8,4x30 mm4x bearing 8x22x7mm (DIN 625)2x DIN 934 M4 nuts2x DIN 912 M4x10mm screws11x Screws 3-4 mm of your choice to mount the holder on the plate. For more information about the printer visit my build blog:http://chaozlabs.blogspot.de/2014/05/building-my-delta-printer.html