I have done many DIY loom projects, even built a second live weight tension beam for the loom in question.  However, I like the high tension for rugs which requires I use the beam with the ratchet and pawl.  The mechanism is 2 pawls, one attached to a crank handle.

Question:  the pawl is a thick metal with a u shape that sits over and either side of the teeth of the ratchet.  I would like to configure it to be able to release the pawl whilst seated from the front.  I considered drilling a hole in each pawl and attaching a cord which travels to the front of the loom allowing me to release both pawls to advance the warp.

The metal is a little less than 1/2 inch thick.  Is drilling a hole in this pawl possible with a regular drill and metal drill bit?  Any tips on how to do this without damaging both pawl and drill!

Thanks

Dawn

Comments

Tue, 02/21/2012 - 06:02

Cat Brysch

That's the first thing that comes to mind. I've seen a cast metal piece break apart...photo, please, if you can. That will help us. If it's cast metal, you could consider replacing it with something that you can drill or have drilled by a metalsmith. Also, think about attaching something TO the pawl like a wire or small chain that wraps around it. Your idea of a way to not get up to release it is simply marrrrrrrrvelous!

Tue, 02/21/2012 - 07:09

ReedGuy

I've never drilled cast before and with that being said, it could be steel,  aluminum or even zinc. I would try it with a drill press and the piece clamped in a  press vise. With a hand drill I would not attempt it because of wobble and chances are pretty good you'd snap off the bit in the hole. Need a good bit to, not the $2 ones from China.

Tue, 02/21/2012 - 12:21

Dawn McCarthy

I will try to post pics later.  I would prefer a professional looking result (requiring a hole) however I did attach a cord to each pawl just to configure the path that gives the best "release".  It will require 3 cords running to the front of the loom.

The live weight tension beam allows the warp to be advanced but does not provide the significant tension required for rugs.

No sure if the metal is cast or not.

Dawn

Mon, 02/27/2012 - 02:03

Dawn McCarthy

Well, rather than drilling holes - with some cord, rubber bands and wooden round giant beads - here is my solution to release the brake on the Toika, it works well:

http://bloominloom.wordpress.com/2012/02/25/tinkering/

Dawn

Mon, 02/27/2012 - 02:27

ReedGuy

More than one way to skin a rabbit. :)