wobblycogs

Thanks, glad you liked it. I'll consider bumping up the difficulty level.

Glad you like it. Personally I prefer the design in the attached photo. I came up with idea a few years ago. It's two pieces of dowel rod with metal clips attached using eye hooks. I forget what the clips were sold for, I think it might have been to hold papers together or something like that. Any small metal clips would do.I would have used this design again but it wouldn't work on a map that wants to roll itself back up all the time.

I don't know where this vice comes from as it was a gift but it's clearly a knock off of an older design. The iron that came out of the casting as I drilled seemed pretty poor quality but it's held up so far.

Cheers, I've had a few people say they have a vice with this problem.

What a great idea. The only thing I'd add is that you need to tell the kids not to try and swing off it!