Made using inexpensive metal electrical conduit. Wood dowels are expensive and plastic can’t support as much weight and sags.
Optional Honeycomb storage structural elements so you can add your own clips and holder for things like scissors, clippers, etc.
Expanding ID gripping of the conduit. Super stable, re configurable, and requires no glue.
Simpler element for faster printing and lower filament usage
Removable and lockable caster mounts to keep things stable when not in use.
Simple expanding collet model to check for usability
Conduit dimensions (modular so you can adjust as you like)
for a 30 filament rack that fits under a typical desk 724mm or 28.5" height from floor to top of upper filament spool.
6 x 710mm (28") horizontal
8 x 230mm (9") vertical pieces (less than 220mm and you'll have trouble getting the filament out, but may be required for shorter desks) (please let me know if this is an issue, There are other ways to mount the casters that can improve/lower the overall height)
My conduit (from Lowes) has an OD of 18mm and an ID of 15.7mm (10ft sections are about $5.50, only a buck or so more than the 5ft pieces.)
After cutting and before assembly, ensure the ends (including ID) are free from burrs
I've found the best way to cut them is using a tool like this: https://www.amazon.com/dp/B0DNHLKX9R which will leave no burr on the outside, the inside will need to be cleaned up for the horizontal sections, but not the vertical ones. It's a lot cleaner and more precise than using a saw and saves a lot of work.
total cost was probably less than 30 including wheels and filament (but not the cutting tool)
For the expanding collet I used 20mm M5 Screws and M5 Nuts (12x) (25mm gives you a little more room, but 20mm should work)
My wheels are from Amazon - Link Here (note that they changed where the product link went to, for some time it went to a 2" version. Sorry! Just in case they do it again, you want the 1.25" version like this one:
Ned
