About this 3D model
https://www.thingiverse.com/thing:3021932 The syringe adapter can be bought ready and a little undercut. For example here Dispenser Syringe Adapter - see here on AliExpress I used the clamp 4 inch, like this (4 Inch Clamp) - see here on AliExpress Nuts for injection moulding - see here on AliExpress NOGA deburring tool - see here on AliExpress The rest - see the photo. More information on the Russian-language forum, here: https://radiokot.ru/forum/viewtopic.php?p=3426814#p3426814 Buy & save with cashback Donate with PayPal Instagram Twitter Pinteres Tingiverse