Been working on this for a while on and off and finally finished it.
Spool holder with adjustable heights for variable size filament spool diameter/widths.
Basic parts needed to buy,
1 x T8 (2mm) lead screw (ebay)
2 x T8 Anti-Backlash Nut Kit (ebay)
2 x 608ZZ Ball Bearings (ebay)
1 x 1metre ptfe tube (ebay)
1 x 9mmx6mm Body 303 Stainless Steel 16.5N End Force Ball Point Spring Plunger (ebay), for detent the cover for the spool holder.
1 x 3 Core wire/ 3 way molex plug (male/female), for extendeding the filament sensor.