Knife Sheath

This print is for the Harbor Freight Survival Knife made by Gordon.

The suggested material is a Matte finish PETG for strength and low gloss.

The knife clicks into place for a firm hold, the strap is added for even more security. Grab the knife handle and push back with one finger on the sheath area behind the handle and the knife is released for extraction. you can also pull outward on the knife handle while mounted on your belt and the sheath will flex and release the knife for extraction.

The assembly consists of 3 separate parts for use on a larger printer, and 4 parts for an Ender 3 size printer base. STL files HF Back_CE3_1 and HF_Back_CE3_2 are the back section of the sheath in two parts for printing on the Ender 3 or equivalent size printer. The HF_Sheath_Back_one piece is for larger printers such as the CR10S Pro etc. The front section, HF_Sheath Front can be printed on the Ender3 base on a diagonal.

Brass eyelets are used to hold the parts together, however #8-32 screws can also be used for simplicity.

The strap shown in the photo was made by me, however the original strap that comes with the soft sheath can be removed and added to the printed sheath.

Dark brass eyelets were purchased from Holster Smith Model # HRSK6-KYSR69-COMBO-100 on Amazon. The size is #6-9. They are very easy use, work perfectly every time. Other parts such as the small strap and snaps were purchased from Hobby Lobby.

If #8 screws are used, the belt Acessory piece of the sheath can be changed to match the belt system used. I have included a simple wrap through web belt accessory for the sheath.

Nozzle temperature used was 240 C
Build surface temperature was 60 C
Base was blue painters tape over 4mm thick glass.
Infill setting is 70 %
Two additional top layers were set for improved surface.
Supports setting was "Tree" touching base setting.

The HF_back_CE3_1 was printed on its side. Reducing the build surface temperature to 55 C after the first 10 layers will reduce the possibility of Elephants foot.