Designing and printing a 4x10 holder

[Michael Roberts]

Lasse, I'd love to see your baffle looks like (the canvas and folded brass plate). I've tried making wooden holders, and this, to me, is the most difficult part.

[Graham Patterson]

Didn't know what the springs were called and that you can by them. I made a tool to make it easier to cut.
Attachment 246466

And I loaded it with film today and let it sit outside in daylight for a couple of hours. Nothing, so it seems light tight enough. And this was with my home printed dark slide too.

Spring strips like this are made to form a radio frequency shield for slide-in electronic items. I have yet to find a design that is the right size and cost, though I think some people have had success.

Did you use a saw to cut with the jig, or tin snips? I figure a saw, as snips will tend to deform the sheet. It looks like two sides to the jig, which should avoid distortion.

The construction pictures on the Thingiverse page were very informative.

[lassethomas]

Spring strips like this are made to form a radio frequency shield for slide-in electronic items. I have yet to find a design that is the right size and cost, though I think some people have had success.

Did you use a saw to cut with the jig, or tin snips? I figure a saw, as snips will tend to deform the sheet. It looks like two sides to the jig, which should avoid distortion.

The construction pictures on the Thingiverse page were very informative.

Thanks.
I actually used my trusty Fiskars Scissors. First one side of all fingers, then turn it over and the other side from the same sid so to speak. Since it's pressed together with the jig, distortions are manageable.

[lassethomas]

Lasse, I'd love to see your baffle looks like (the canvas and folded brass plate). I've tried making wooden holders, and this, to me, is the most difficult part.

It took a few iteration to get right.
In the end I got a 0.15 mm brass spring sheet, and cut it to dimensions.
I made a jig for the fingers to cut them out.
And then bended them a little.
As canvas I found some light proof cloth. Probably intended for lights blocking curtains. It's thin (0.45mm), soft and probably polyster or similar. Fairly lint free it seems.
Since I've tried a 0.12 mm steel spring sheet too. Worked as well or even better

Seems to work, but if it stands up for longer abuse we will see.

[lassethomas]

Spring strips like this are made to form a radio frequency shield for slide-in electronic items. I have yet to find a design that is the right size and cost, though I think some people have had success.

Did you use a saw to cut with the jig, or tin snips? I figure a saw, as snips will tend to deform the sheet. It looks like two sides to the jig, which should avoid distortion.

The construction pictures on the Thingiverse page were very informative.

Also, I found out that if I tape the spring sheet with textile tape on one side when cutting, it's easier to cut and deforms much less.