Ratcheting board jack

[Brian Holcombe]

Just want to bounce some ideas off of you guys. I'm planning to build a ratcheting board jack that can be clamped into my tail vise. Thinking about cutting a groove into the linear part and using dowels to function as the catches. I plan to make a pawl out of ironwood and apply light tension with a coil spring.

Have any of you guys built this or something similar?

[Derek Cohen]

Hi Brian

I have a sliding deadman, but out of interest I Googled and came up with this ..

http://bribiewoodies.org.au/Tips%20&%20Tricks/Board%20Jack.pdf

and ...

http://www.fineboxes.com/BoardJack_-3.JPG

There must be many ways to do this. All should work.

Regards from Perth

Derek

[Brian Holcombe]

More like this:

273830

But where the jack actually ratchets for a quick height adjustment.

[bridger berdel]

how much quicker than setting a peg do you need? seems that those holes could come in handy too for other things that might fit in the dog holes anyway....

[Judson Green]

More often than not I use my bench slave/sliding dead man to support boards much shorter then the length between my front vise and tail vise. Don't know what your distance is or if that would present a difficulty for you but something to think about.

[Don Dorn]

I'm not as creative when it comes to a board jack - although I need one often. This solution was cheap, but it's worked pretty well since 08.

http://i111.photobucket.com/albums/n124/djdorn/Mybenchslave_zps26a3a266.jpg (http://s111.photobucket.com/user/djdorn/media/Mybenchslave_zps26a3a266.jpg.html)

[Kees Heiden]

I always wondered about this board jack in the tailvise. What do you do when the board to be clamped is just a little too short to reach it?

[Brian Holcombe]

Going back to the drawing board on this.