Liner Lock Pocket Knife

Name: Liner Lock Pocket Knife (3D printed)
Brand: Hark Tech
Price: 6.90 GBP
Availability: InStock

Small parts from £4 printed to order · UK postage from £2.95, free over £40 · usually dispatched within 2 working days
Arrives damaged? Free reprint, just film the box being opened. Returns policy

Free community design ♥ 1,949 likes ↓ 25,253 downloads

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PLA from £4 plus UK postage from £2.95. We prepare your model, print it across our calibrated production fleet and quality-check it before it is usually dispatched within 2 working days.

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We didn’t design this model. It’s a community file from its original creator, and now and then a file has a fault that only shows up when we print it, such as walls that are too thin or parts that don’t join properly. If that happens we’ll let you know and try to fix the file, which can add a day or two. If we can’t get a good print from it, we’ll refund you in full.

Good to know before you order

TPU has a £11.50 print-order minimum. ABS, ASA, PC, Nylon and PETG-CF have a £46 minimum; PA-CF has a £69 minimum. Delivery is shown separately in your cart.

Need a few parts? Add them to one cart. One order minimum and one postage charge cover the cart: £6.90 for standard materials, £11.50 with TPU, £46 with ABS, ASA, PC, Nylon or PETG-CF, or £69 with PA-CF.

Please check the model files include everything you need before ordering. We print the files as published by the creator, so you receive the parts in the model, not necessarily a finished assembly shown in any photos. These are community designs by their original creators; we manufacture and post them but cannot guarantee fitment for your specific appliance or use case - check the original design page for compatibility.

About this print

A 3D printed pocket knife featuring a liner lock mechanism, a drop point blade and a thumb stud for one-handed opening. The liner lock functions in the same way as a conventional folding knife, releasing by pressing the liner sideways with the thumb. It serves as a functional proof of concept for printing working mechanical assemblies. PLA is suitable for a prototype print, though PETG offers greater flexibility and durability for a part that must flex under repeated use.

From the original design page

Original maker's notes

By Caboose on Thingiverse · CC-BY

Intro
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The goal of this project was to create a pocket knife that was able to be 3d printed that utilized a liner lock. Neat proof of concept, no?

Knife blade is a drop point. Thumb stud is included on the blade. Cutting surface is roughly 2.7" long. The knfie can easily be opened with one hand and close with one as well. To unlock liner lock, simply push to the side with thumb, just like on a real knife with a liner lock!

http://en.wikipedia.org/wiki/Liner_lock

I have printed this and it works fine. Lockup is solid. Changes in future versions include a lanyard clip as well as different blade profiles (tanto, clip point, straight back).

Knife pictured is a version before this release and lacks an extra washer, and some refinement. Regardless, your knife should print fine.
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Parts List
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- Blade
- Front Scale
- Back Scale
- Washer
- Front Pin
- Liner

Read assembly instructions for more details.
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Use
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Use only for discussion piece. I am not responsible for use as a weapon or any other malicious action.
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Change List
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v1: Initial release
v2:
- Rear pin added, it is no longer integrated into the back scale
- Blade now has washer built in
- Small liner tweak

Formatting may have been simplified. These are the independent maker's instructions and fitment claims; Hark Tech has not independently verified them.

Printing Liner Lock Pocket Knife

For Liner Lock Pocket Knife we would normally reach for PLA — it is the easy, economical default and suits the majority of models. We set the layer height, wall count, infill and supports to suit the model and how you will use it, and those choices are already priced into your instant quote. Want a specific colour or material? Tell us and we will match it where we can.

Model details

Downloads at source	25,253
Likes at source	1,949
Original model	View on Thingiverse
Designer	Caboose
Licence	CC-BY

knife liner lock mechanism pocket knife

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