• The BladeForums.com 2024 Traditional Knife is ready to order! See this thread for details: https://www.bladeforums.com/threads/bladeforums-2024-traditional-knife.2003187/
    Price is $300 $250 ea (shipped within CONUS). If you live outside the US, I will contact you after your order for extra shipping charges.
    Order here: https://www.bladeforums.com/help/2024-traditional/ - Order as many as you like, we have plenty.

  • Today marks the 24th anniversary of 9/11. I pray that this nation does not forget the loss of lives from this horrible event. Yesterday conservative commentator Charlie Kirk was murdered, and I worry about what is to come. Please love one another and your family in these trying times - Spark

parser drill, how did it work exactly?

ron_m80

ron_m80

Tempered Member
Platinum Member
Joined
Mar 1, 2009
Messages
8,154
This has been giving me trouble wrapping my head around.

What is the spring tension on the bit like? Its pretty soft correct?

I've looked at videos. They show how amazing and simple they are, but I'm having trouble picturing the bit opening and closing rapidly, I.e. when spun inside a shield template. Is it run more like a router bit and moved around that way?

Thank you for your time.
 
Last edited:
Parser.
The outward tension allows the rotating bits to follow the curves of the template. The parser is not moved like a router.
 
I edited the title to correct the spelling.

OK. With that established, it seems to me that the split bit, would torque funny inside tighter templates making a hard change in dirrection. Leading to my question about the strength and temper of the bit legs.

Are parsers a dead skill/ tool? Has no one seen one in person?

I am curious about this tool. It looks really efficient, I am just stumped how it can do what it does.
 
Last edited:
TWEEDALE-TWO%20LEGGED%20PARSER%20(2%20March%202015)_Page_3_Image_0001-530.jpg


I like that definition. ".....Until they have seen it done."
 
Ron_m80,

If you find any more info I would enjoy seeing it. I am really wanting to get more info on these to try and make a pair?set?. (not sure why the end faceing the user needed to be so darn pointy) I am no help here as i have probably only seen the same videos you have.

Tracy
 
I'm on the way out of the office but I did find a blog today with some info on it. I will post it tomorrow if the mod's don't mind this thread.
 
The pointy end was held in a dimple on a metal breast plate.

A modern version of the parser, made for use in a drill press would be an interesting project-and easy to make from a piece of drill rod.
 
Bill DeShivs said:
The pointy end was held in a dimple on a metal breast plate.

A modern version of the parser, made for use in a drill press would be an interesting project-and easy to make from a piece of drill rod.
Click to expand...

Yes, the template could be placed in a handled template holder so you can get the right amount of undercut, from the video I've seen low speed low feed would be best for the design.
 
I would start with a not so much preload, then you could increase it separating the legs a bit if necessary, but don't understimate the cerntrifugal force contribute.
You are right figuring the bits having hard time following abrupt corners, that's why you would alternate the rotation often...to catch also the "jumps".
Another trick is to relieve (drill, dremel burrs...) some material from the very center of the shield to the desired depth, and let the parser do its magic just on the profile, lot of less drag!
 
Google is finding more hits today. This has been discussed by other knife makers "here and there" on the WWW.

EDIT: I don't know where I grabbed this link.
http://www.watchman.dsl.pipex.com/two-legged parser/parser.html

http://makezine.com/2015/08/05/old-tech-drills-any-shaped-hole/

This one is a blog, from a gent who built one of his own, and through trial and error, completed his process.
http://www.petermcbride.com/parser/

http://www.wkfinetools.com/contrib2/TweedaleG/tlParser/tlParser-01.asp

These have probably been linked before. I don't see how to direct link the videos. It would be hot-linking anyway. Great videos. Check #3 Stan Shaw for the parcer.
http://www.mylearning.org/metalwork-in-sheffield-/gallery/1-117/
 
Last edited:
How interesting this parcer drill - I had to do some looking for info and found a couple of links that are VERY good. I was getting ready to post them, then saw Skimo and Ron have already posted my links, and more. Good thread!

Ken H>
 
The WKFinetools link is pretty great. May have to start on one of these today.


Seems like you could adapt a drill press pretty easily, especially using a tapping head or something and maybe some type of movable base for the workpiece.
 
Kind of off-topic, but is there any literature (books?) that focus on shields? Or any sites that have a large database of shield types used, significance of specific designs, etc?

I've never used any on my slipjoints, but I'd like to start playing with them.
 
This is one of those tools I wanted to know about but have only had a little touch with. I will make one of these ( or more ). I don't make lock backs or slip joints only liner locks and perhaps will never place a shield in one of these but I still find this a fascinating touch. Thank you for this presentation to all.
Frank
 
You must log in or register to reply here.
Back
Top