I got stuck with this project, due to the wooden threads not working properly - they get stuck, too. I have yet to manage to get them to work properly, but maybe someone else has a good idea about that, or can draw some inspiration from my mistakes, which is why I am publishing it unfinished. If that is not cool, please let me know.

All this is someone else's fault. Well, not really, but it starts with an instructable about a Treadle Lathe referencing the Woodwright's Shop. Not being from the US this was the first I heard about it, and I got a little hooked. Why a little, you ask? Well, with too little time to actually do any "proper" woodwork, but there was one episode that caught my attention. I admit I bought a wood thread cutter specially for making this, but I have plans to use it for other projects as well. Time will tell if I really do.

Anyway, I wanted to make such a vice for various reasons, not the least of which was that it appeared to be simple and easy enough to actually finish the project in a humane fashion.

Step 1: What You Need

- a board, roughly 4"/10cm wide, 40"/1m long
- a wooden rod, 1"/25mm in diameter, at least 20"/50cm long
- two pieces of wood for the screw knobs, about 2"x2"/5cmx5cm, at least as long as they are wide
- wood glue

- saw
- wood thread cutter, 1" thread
- drill press
- drill bit for centering (1-2mm)
- drill/forstner bit for 21mm holes (20mm will do, too)
- drill/forstner bit for 25mm holes (or slightly larger)
- some means to hold the various buggers down (possibly a vice)
In an old Fine Woodworking Magazine there is a tip for cutting threads. Soak the wood in paraffin wax for 10 min and then cut the threads while it is still warm. Says you get perfect threads even in hard to thread woods like oak. <br>The type of wood used will make a huge difference too.
What you're trying to do is not easy. If I was starting from scratch I would build some sort of jig to allow for acme threads. These are more commonly used in vices (I think the tolerances are less important). As far as this version goes, you may want to run the edge of a file inside the threads, basically taking off a little at a time. Then use the wax or some forms of oil. <br><br>It's most likely that when you soaked the threads they absorbed what ever you soaked it in and expanded past the point where it fits into the nut.
Ah The Woodwright's Shop, possibly the greatest show ever. <br> <br>You should have far more leeway on something this big but are you sure your threads are straight? <br> <br>Try putting the tap in the pillar drill chuck (if it opens far enough) and start tapping by hand after drilling the hole. Goes in perfectly perpendicular and on centre. <br> <br>As for the rod, if the hole in the unthreaded portion of the die is significantly larger than the outer diameter of the bare dowel you could try closing it up so the die remains centred and straight. <br>
Thanks, I will try that. The bees way, too. I'll let you know how it goes.
melted bees wax can be used to lubricate the threads.

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