Finger saver ring

PEU

Gaucho Knifemaker
Knifemaker / Craftsman / Service Provider
Joined
Aug 6, 2006
Messages
969
Not long ago I saw a video for a grinder ring and it seems the idea got stuck in my mind... So I put it to work instead of procrastinating remembering videos :D

The idea is to save the pain for your index finger when grinding long freehand sessions, I use it for the bulk removal and it works like a charm, for the finishing I like to use the bare hand.

My only doubt is do I make them one size fits all or many sizes? it seats in the middle phalanx of your index finger, for me its comfortable at 20mm/0.785" hole, but I know people that have chorizos as fingers LMAO

What do you guys think? Thanks!

Pablo

u3ctRik.jpg

iEuFCHV.jpg
 
Last edited:

A.McPherson

Knifemaker / Craftsman / Service Provider
Joined
Jan 27, 2012
Messages
2,044
Nice! That's a pretty cool idea! Let us know how it works for you!!
 

PEU

Gaucho Knifemaker
Knifemaker / Craftsman / Service Provider
Joined
Aug 6, 2006
Messages
969
Lmao zombie green, these are prototypes I made with my 3D printer, the plan is to make them in brass or stainless.

What do you guys thing about the diameter of the finger hole?

Pablo
 
Joined
Mar 2, 2006
Messages
5,232
I like the colour.
I think it won't be unhandy if the hole is to large. I hate it if things get made and my finger won't fit.
Maybe do a S, M & L-size?

Edit: 18mm would fit me comfortably, 20mm loosely
 

PEU

Gaucho Knifemaker
Knifemaker / Craftsman / Service Provider
Joined
Aug 6, 2006
Messages
969
I like the colour.
I think it won't be unhandy if the hole is to large. I hate it if things get made and my finger won't fit.
Maybe do a S, M & L-size?

Edit: 18mm would fit me comfortably, 20mm loosely

We do have similarly sized fingers, 18 is a snug fit, 20 leaves a small space which I feel the most comfortable. My first prototypes were larger holes and I scrapped that idea

Pablo
 

3fifty7

Gold Member
Joined
Dec 24, 2016
Messages
2,356
I’d like something close to 22mm(12pt box end wrench is my gauge) and I think I’d prefer plastic or aluminum.
 

Stacy E. Apelt - Bladesmith

ilmarinen - MODERATOR
Moderator
Knifemaker / Craftsman / Service Provider
Joined
Aug 20, 2004
Messages
33,186
I am making some in bronze as well as nylon. I would suggest making them in three opening sizes - 20mm, 24mm, and 28mm - to allow for small, medium, and large hands.
 

Alex Topfer

Basic Member
Joined
May 1, 2019
Messages
219
hmm, it seems unlikely but i would worry about it getting caught in the 3hp grinder
for reference my finger would need a 22mm hole.
 
Joined
Dec 24, 2005
Messages
774
I came across the same videos Pablo, cool idea.
How about one large size with a couple of different diameter inserts.

Peter.
 
Joined
Dec 31, 2011
Messages
3,438
I can see that working nicely for hogging - would brass conduct heat (when hogging) too much allowing a bare finger to get hot? I'll be making a prototype from Aluminum to see how it works. It'll be a few days, got too much "playing" to do with a new press :)
 

scott kozub

Gold Member
Joined
Jan 1, 2018
Messages
815
I was thinking about the insert idea as well. Alternatively, every knife maker has a drill press and the ability to make their own hole to a size they want. Just leave a centered pilot hole and the buyer can drill it. That may seem a little weird though.
 

billf

Platinum Member
Joined
Oct 9, 2003
Messages
1,460
Pablo

real cool!
color me interested !

i'd think nylon/UHMWPE or aluminum would be ideal materials...

Bill
 

PEU

Gaucho Knifemaker
Knifemaker / Craftsman / Service Provider
Joined
Aug 6, 2006
Messages
969
I came across the same videos Pablo, cool idea.
How about one large size with a couple of different diameter inserts.

Thought about this, but that will leave the index finger away from the blade, I found that the closer the index it to the belt the better.

Cast brass or aluminum are my options, plastic could work but I think it will deteriorate sooner than later.

Pablo
 
Top