Self Adjusting Filament Holder 2

This is a remix of my other holder If you have already made my first one all you need to do to upgrade is print file ring2.1.stl This filament holder is for filament that is not on a spool. It is collapsible to insert into the middle of your filament then spring loaded to expand. It is made to fit the Original Makerbot filament holder. Look at my pictures to see how I use it on my bot.