toothpaste squeezer worm gear v3

this toothbrush squeezer works by worm drive.

to assemble push crank through top gear to get it to fit . the make sure the  crank goes throught the top holes in the frame. then hold the top gear in place as you slide the crank through the holes on the frame and the top gear. the crank will snap into place.

make sure you push the crank from the side of the frame opposite the tube insertion slot on the frame.

the. slide the roller through the bottom gear, with the cutout on the gear facing the end of the roller with the flanges, then slide the roller and gear through the frame.  with the end of the roller sticking out of the frame insert the endpiece over the end of the roller end, it will snap onto the roller. 

if tube is already half empty or so, you can slide trhe tube end through the frame and the roller, as far as you want, up to the to of the tube and start cranking.  you can then slip the end of the tube hanging out into the roller into the slot in the frame for this purpose, and pull untill it is taught. this keeps it all shorter than if it was just hanging out the back. but that is up to you.

no supports.