Reply by RobynHoodridge

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Posted on Shaving Giraffe - a shave horse re-design from Africa

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127 posts in 2324 days

#1 posted 01-31-2013 08:45 PM

For opening the jaws
There may be folks who are happy with standing up each time. In which case they could devise a spring action to open up the giraffe as they do. But i personally wouldn’t want that. So here’s my best idea ->

What the shaving horse has got right about it is that the (free) legs are used in determining the clamping. However there’s nothing to say that just because we’re swapping from “usually open” to “usually clamped” we can’t keep with the switching between them by leg action. Here are pics of the way i modified my model giraffe to be activated using ones legs.

non-stretching (cable) line between the giraffe bench parts, with a pivoting arm that depresses it.

With the leg operated arm depressed, the distance between ends of the giraffe is forcibly shortened, and the vise is un-clamped.

This should have just as much usability as the shave horse. I mean, it’s functionally the same thing : a leg action determines whether the work is clamped in place or not. So those worried about turning the work piece often, and potentially having to get up off the bench to do so, you can see that there are ways to not have to do this.

I would choose to use steel rope for the line. It could have ‘loops’ at various lengths along it for different positions of the swing arm (in a version that has an adjustable arm). And it would just hook in place (and come off again as easily) when the fold up giraffe goes to and from its pen.

What i don’t like about this is that it’s not as simple as the original, where there were just two major parts that pivot on eachother. Don’t get me wrong, it’s no big deal i think. I just loved the pure simplicity of a version with no un-clamping mechanism. Now we’re introducing another pivot. And we’re back to having something under the bench that could jam against things on the floor etc..
One thing though, is that we’re NOT back to the legs having to be used while you’re working on the piece. Which i like the sound of.

-- Never is longer than forever.

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