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A project log for Hackaday Superconference 2018 Badge Enclosure

A 3d printable plastic enclosure for the 2018 Superconference badge, with a complete keyboard!

rogerRoger 10/31/2018 at 16:251 Comment

I'm doing Supercon prep work during the day and only have a few hours for my 3D printer to work at night. (Not going to leave it printing unsurpervised.) Last night I chose to print the front piece. Here it is on my Belgrade badge.

Good news: General component layout looks good. I didn't print the buttons to see how they fit, but there's nothing glaringly misplaced.

Bad news: It doesn't fit on the badge due to interference with the screen. My first guess is that the screen is thicker than the design allowed.

The screen thickness is in the datasheet, but the thing used to install it on the board (double-sided foam tape?) was not. My caliper says the sum adds up to a hair over 4mm thick. (It read 4.105, if that's useful, but it varies +/- ~0.05 from place to place due to the tape.) Directly pressing on a delicate LCD would be a risk, perhaps allowing for 4.5mm of screen thickness would still look good without an insightly gap?

Related: When displaying an image, the top, right, and bottom edges of the screen bezel dimension look good but the left border is really close to the display area. If the screen was mounted 0.5mm further to the left (I don't know the expected variance in placement location) the bezel would have blocked the leftmost part of the image.

Discussions

T. B. Trzepacz wrote 11/01/2018 at 00:28 point

Ok, I'll give the screen a bit more allowance on the front and sides. 
What I really want to know is whether the plastic on the back causes a problem with the back of the case.
Also, it would be good to know if the keys and D-Pad fit properly, or if the part between the switch and the board needs to be larger or smaller.

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