That’s excellent! I’m looking at making something myself. I was thinking of using scrap timber of which I’ve got a fair amount in the garage but hadn’t worked out how to make it infinitely adjustable, so the channel idea is looking good.Tired of string jigs that flex under tension or cost an arm and leg, I thought I would make one. 2m channel, 40x5mm plate and 1m of 8mm dia stainless rod. Total £35.00 Result... best string jig I have ever owned
Can't comment for the channel, but on the extrusion there are fixings like [this] that you can slot in to the channel with a thread that sticks out. This thread then goes through the post mounts and can be locked with a nut.What are the parts that clamp on the inside of the channel made from? More of the 40x5mm plate?
Did you turn down the rod yourself on a lathe or get someone to do it for you?
Hah, perhaps overkill, but for functionality and price it was the best option I found.I like the winch ArcheryFox. We use to lift a 1/2 tonne keel with the same one.
I agree, 3D on the loops is nice and soft.
Sometimes, if you can't mill a slot, two long saw cuts from on end will work. Chisel out the thing strip that is between the saw cuts. Then glue in a piece near the end to fill part of the slot to. keep the base piece strong.If trying to make from wood could you perhaps mill a slot in the centre of a plank that you then slot the adjustable head through, and then tighten it to the main beam at the desired location using a sash or G clamp?
Yes, there is a piece of the steel plate inside the channel and yes I turned the end down on a lathe.2 questions:
What are the parts that clamp on the inside of the channel made from? More of the 40x5mm plate?
Did you turn down the rod yourself on a lathe or get someone to do it for you?
That’s the part I can’t do. I can drill stuff and tap threads at a pinch.
I use one of these amongst others (I have an Arten one too, but the Sherwood is better), but I mount on a B&D Workmate with 2 quick release clamps at the connection points ...stops any flexing. I tend not to make continuous loop strings, but use the jig to do centre servings whenIt's an aluminium 20mm x 20mm square U channel with another (the same) running in side it. It just flexes.
I might just take the plates with the pillars off and bolt them to some channel, as most of the work has already been done.
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I can't mill or rout but I can drill and saw. I'd probably drill a hole of the right dia at either and (and if it was a long slot, one or more in between), and saw or chisel out the bit in the middle.Sometimes, if you can't mill a slot, two long saw cuts from on end will work. Chisel out the thing strip that is between the saw cuts. Then glue in a piece near the end to fill part of the slot to. keep the base piece strong.
I use a wing nut on the cross piece to fix it in the required position.