A puzzle for the beach
Posted by
tsmaster
 
Joined Apr 16, '16 

I finally finished my gift jigsaw puzzle:

I had made a bunch of smaller projects, proving each step of the process, and it looks good. I still have to “playtest” it by actually assembling it, I can probably do that this weekend when I visit my parents. They seem to like jigsaw puzzles.

I generated the template using Python and ReportLab to generate PDFs. I can go into the process if folks are interested, but the basic idea is to generate points and move them around randomly. Repeat. :slight_smile:

As a backing, I used matte (mat?) board that I got from the local framing store.

I generated the picture using a bunch of photos that I had taken and were scattered about at least 3 different social media / picture sites - that might have been the most painful part.

I took the PNG of the picture, sized to 16" x 10", on a thumb drive, to my local Kinkos/FedEx. The woman behind the counter was happy to print it to glossy cardstock for me.

Spray adhesive holds the picture to the backing really well.

One thing that I learned that I would pass on to other people generating cutting templates themselves (vs using, say, Inkscape): group your lines into paths, as much as possible.

puzzle_closeup_2017-10-03 22-52-47

You can see there the smoothness (and lack thereof) of the pieces I was cutting - each puzzle-piece-edge was made up of about 20 individual line segments, which I saved as an ungrouped soup of lines. Something like 500 edges in my puzzle, that’s around 10,000 individual segments.

I discovered that this is enough to cause the GlowForge processor to have problems.

I grouped the segments for each edge together, and the processor was much happier with my design. If I was to write the code again, I’d probably go for even bigger groups - each edge is part of a continuation that goes the full length or width of the puzzle, so I should really only have around 36 cuts, which the processor would have no problem with.


Hundreds of ideas brought to life
Explore projects.
Some new tessellation puzzles

Wooden puzzle

First Photo Puzzle

USA puzzle