AR-15 Trailer Hitch Cover 3D Printer Model Free Download

Description Files (13)

Summary

See AR-15 Trailer Hitch Cover, Mk 2 for a newer, simpler version of this design. I don't recommend this one. The technological gimmickry was fun, but it has too many problems, and is too fragile. The new version is simpler and stronger.

An over-engineered AR-15 "bolt head" style trailer-hitch cover.

Share your passion for shooting sports, without attracting unwanted attention from haters. Those who know what it is, know what it is. To everyone else, it's just some kind of gear or something.

Features:

Dimensionally-accurate (but scaled up) AR-15 bolt head.
Integrated cross-bolts to lock into trailer hitch receiver.
Bolt head rotates to extend or retract the cross-bolts, and lock/unlock from the hitch receiver.
Detents hold the bolt-head in the locked or unlocked positions.
A disassembly groove allows the device to be disassembled, but only from the unlocked position.

Additional parts/materials required:

Homemade ABS glue for solvent-welding
Acetone (for vapour smoothing)
Two approx. 8mm diameter ball bearings. (I got mine from a worn out bicycle crank bearing.)
Approx. 20mm x 8mm coil spring.
Dry graphite lubricant. (Beware of spray graphite; it may have solvents that will attack ABS.)

ARReceiverCover_v63.f3d	915.7KB
BoltHead.3mf	124.7KB
BoltHead.stl	484.3KB
BoltHeadB.3mf	47.4KB
BoltHeadB.stl	113.9KB
BoltShaft.stl	244.0KB
HitchBar.3mf	176.2KB
HitchBar.stl	105.6KB
HitchBar_B.stl	561.3KB
LockBolt.stl	90.3KB
Plunger.3mf	31.2KB
Plunger.stl	80.3KB
Shaft_Bolts.3mf	98.0KB

AR-15 Trailer Hitch Cover 3D Printer Model

Summary

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