Friction Folder WIP

[cardoso5fr]

A guy asked me to make some picture during the creation of his spreader. i share it with you.

I cut the XC75 and G10 sheet with my angle grinder. (on the first picture if a friction folder blade without tail, the following picture are with a friction folder blade with tail because i forgot when i cut the first blade that i had to make something with tail ))

I marked the pivot point

I drilled at 4,8mm

Positioning of the scale.

3mm drilling

I counterbored the sport for the pivot screw

4,8mm drilling

I reamed to 5mm

I reamed the blade pivot hole

Positionning of the blade to point the tang spot. I marked with a hardened point over the heel of the blade closed .

Same thing on the back heel with the blade open.

I point just on the top left point of the crossed mark.

3mm tang drilling

I pointed on the open blade the place of the tang pin.

With marking point, i draw the way of the tang pin

I grinded the heel with a 40 grit belt.

I put a temporary tang pin

I filled the tang cup in order to control perfectly the work.

OK

Closed

I grinded the finger choil. It's OK i didn't put away too much material. I point the spot for the spacer.

3 mm drilling for the spacer.

5mm drilling for lanyard hole.

90° countersinking

OK

I pointed the future spyderhole, 9mm of the back and 2,5cm of the center of the pivot hole.

6,5mm drilling. (half of the 13 mm drill bit i will use for spyderhole)

13 mm drilling.

I have to grind the handle.

Handle OK

I put the pivot, the washer, the blade and marked where i have to cut.

I cut with the dremel.

I cut the spacer and tang pin. 3,5 mm (0,2mm for each washer and 3mm of blade.) 3,5mm is ok for a good friction.

I shortened the screw

The knife have almost is final shape

Open before grind.

40 grit belt

After 40 grit belt

After grit 120

After 240

Following step
Fileworked, heat treatment, final handle shaping work, final blade grind, cleaning, etching, etching of my logo, polishing, building

 

[Stew]

Mate, that looks too simple! Bet it's not though!!

 

[cardoso5fr]

It's not very difficult to make a friction folder .

 

[LR Adkins]

Nice WIP, thanks for posting.

Larry

 

[Pieter]

I agree with Larry this is a great WIP thanks

 

[cardoso5fr]

Thank you for enjoying

I file the start of the blade to help the sharpening.

Filework with round and triangular file

I rounded the edge with 400 grit

3 normalisation with the propan torch, and differential oil hardening by differential heat of the steel.

File test to check if the quench was ok

I cleaned the blade with 240 in order to be able to see the color of the tempering.

Cleaned

Propan torch to temper the blade

Softly gold. That is not very clear on the picture but it's gold

I continu the grind with 120 belt in order to decrease the thickness and to have a higher bevel.

I complete the grind with 500 grit.

Scotchbrit to obtain a nice satin completion before to etch.

After scotchbrit

I degreased with aceton on a leather piece i founded somewhere near the workbench

Ferric chloride bath

Just out of the bath

After water and scotchbrit cleaning

Electro chimical etching from my logo

After etching

I rounded all the angle and satined the G10

I cleaned the blade avec etching

400 grit hand free to rounded more everything

I polished the scale on the buffer

Sharpening on a old 400 grit free belt.

Sharpening of the blade on the buffer

Le couteau fini
XC75 oil hardening and G10
13 cm closed
4,2 cm closed highness
18,6 cm open
7,6 cm sharp
3,2 cm high
Spyderhole licensed by spyderco not very usefull with the tail but that is a part of the design

 

[bootstrap]

nice wip! the end product looks like it will use well.