The syringe adapter can be bought ready and a little undercut.

For example here: https://goo.gl/eTdF2C Or print my model.

• I used the clamp 4inch, like this: https://goo.gl/HtFMjx

• Nuts for injection moulding: https://goo.gl/nUDLCJ

• NOGA deburring tool: https://goo.gl/iGfJ9R

• NOGA NB1100 Deburring Tool: https://goo.gl/xt7Sfe

The rest - see the photo. More information on the Russian-language forum, here: https://radiokot.ru/forum/viewtopic.php?p=3426814#p3426814

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