view in onshape: https://cad.onshape.com/documents/2e76ef5686917c2aa4504bab/w/5a6b63366622454b6f682cb8/e/584ed9f63cfbd8d0ce5bf1f8?renderMode=0&uiState=687bdf681e181245d08c0410 

this is project sidesecure its a liner lock(view last picture) based foldable knife. it's fully 3d printable if you have 3 screws. 

for assembly refer to the Drawing.PDF and utilise the assemby

fully 3d printable steps:

print the body parts and razor holder in pla or abs at at least 40% infill 

print the liner lock in petg or tpu at 20%-30% infill

Don't print the spacer

the holes on the body are meant for m3 20 screws and the holes in the razor holder are meant for m3 5 screws the washers go in between the body and razor holder on both sides.

Not fully 3d printable steps: 

print body parts and razor holder in pla or abs at at least 40% infill

print the spacer in pla or abs at atleast 40% infill

from a thin piece of metal make it have 2 3mm holes spaces 3 mm apart and have it reach to the end of the razor holder like shown in pictures

the holes on the body are meant for m3 20 screws and the holes in the razor holder are meant for m3 5 screws the washers go in between the body and razor holder on both sides.