Thanks to all for comments and clicks ☺️
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Another tool-making diversion: A folding tool
As will be seen in the next post, quite a number of delicate laser-cut parts will need to be folded. Therefore, I thought a folding tool might come handy. A number of commercial gadgets are available, but considering that they essentially consist of a couple of milled-to shape pieces of aluminium and a thumb-screw, I find them rather overpriced at €20 to €70, depending on what you buy where. Also, if I have the right materials and tools, I prefer to make such things myself.
I did not have a suitable piece of flat aluminium in stock, so I decided to make it from some 4 mm thick Plexiglas off-cut. This has the added value that you can better see, where you place the folding edge. Plexiglas is more vulnerable than aluminium, but I can always make a replacement, should the need arise.
A set of fingers ranging from 1 mm to 6 mm width were separated by notches made with a 4 mm cutter. The front was bevelled for better access to small parts. The opposite side was left straight for longer parts. For the moment, the front edges where milled at 90° degrees, but I can imagine that a slight overbending would be better. I am considering to mill on a 5° or 10° relief angle, but will first test the piece in practice. A more acute angle will make the edges more vulnerable to chipping. The underside is somewhat recessed over most of the width, so that tool really clamps with the front edge, where it is needed, and does not wobble.
As I also did not have material for a base in stock, I decided to use the base of the sanding tool that I made a while ago. It has the added value that no extra gadget is floating around the workshop. The folding ruler was drilled and two corresponding holes in the base were drilled and tapped for M3 thumb-screws.
To be continued ...
By
wefalck ·