Everyone loves bolt-action pens so why not have a pen that looks like a bolt action rifle? What started as a joke turned out to be one of my favorite 3D Printing projects to date.

be sure to check out everyones awesome makes!

BOM

printed parts (stock, barrel, front furniture, small pieces)
Pilot G2 refill cartridge
Pilot G2 compatible spring (OD:6,2mm, ID:5,3mm, L:20mm)
alternatively salvage a Pilot G2-07 pen (~2.5€)

Print Instructions (total 4h40min)

all prusaslicer .3mf project files have custom supports and seams.

stock & front-furniture: print upright, ~0.15mm layer height, stock supports not required but useful for bad bed adhesion or high accelerations. MK3S(+) w/ satin sheet does not require them.
barrel: print upright, ~0.2mm layer height, support required (up to the ejection port)
small pieces: same filament as barrel, just print them in the orientation that they come in the prusaslicer .3mf or alternatively as indicated in the file description of the standalone pieces.

PSA cellulose (woodfill) is hygroscopic → drying filament beforehand highly recommended

Print cleanup

tolerances are tight. Keep sidecutters and razor blade etc. handy. Parts will need to be touched up and individual mating surfaces might need some love. No glue or screws though

Assembly

grab the “bolt” and sand it until it slides smooth within the barrel (I use a drill & sandpaper)
pressfit the “bolt handle” into the hole close to the rear of the bolt
insert the spring and Pilot G2 cartridge into the barrel
push in the bolt against the spring and secure it with the small cylinder through the cutout in the barrel
pressfit the “trigger assembly” into the stock
insert the square block on the barrel into the square hole in the stock
slide the other wooden “front piece” onto the barrel and slide it below the rear sight
add the front retaining band and the front sight

I've previously used colorfabb steelfill but I prefer the look of Prusament Galaxy Black (pictured). The stock is printed in woodfill PLA.

I'd love to see how your Kargelschreiber turns out :)

Kar98k bolt action ballpoint pen

by FreddyZ · original on Printables ↗

Gadgets / Other Gadgets

♥ 3.6k⬇ 6.5k🖨 71 prints

License: Creative Commons — Attribution — Noncommercial — Share Alike ↗penballpointpenboltactionpenkarabiner

Print profiles

front furniture PS.3mf
⏱ time and weight estimated after preparation · 1 material(s)
Made to order: we prepare this file when you order, which adds a few minutes before printing starts.
Prints on: A1 mini 0.4PLA
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Kar98k stock no support.3mf
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Prints on: A1 mini 0.4PLA
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Kar98k stock.3mf
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Prints on: A1 mini 0.4PLA
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small metal parts PS.3mf
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Prints on: A1 mini 0.4PLA
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barrel.3mf
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Prints on: A1 mini 0.4PLA
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trigger group.3mf
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sight front.3mf
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stock kar98k.3mf
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front furniture.3mf
⏱ time and weight estimated after preparation · 1 material(s)
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Prints on: A1 mini 0.4PLA
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bolt guide.3mf
⏱ time and weight estimated after preparation · 1 material(s)
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front bling.3mf
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bolt.3mf
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bolt handle.3mf
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stock v2 PS.3mfDEFAULT
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stock kar98k v2.3mf
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stock v2 supported PS.3mf
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barrel v2.3mf
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barrel v3.3mf
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Prints on: A1 mini 0.4PLA
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Kar98k pen barrel v3 PS.3mf
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Prints on: A1 mini 0.4PLA
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small metal parts prearranged.stl
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Prints on: A1 mini 0.4PLA
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