Lego Shopping

So, I want to use Legos as a physical design medium as described in my prior note.

Adafruit Feather mounting board

I think as a test run, I'm going to make a demo for mounting an Adafruit Feather. Brainstorming:

• Have THT holes for the edge pins
• Have mounting holes for the main corner mounts
• Have an optional pair of SMT QWIIC connectors at the front and back
• Maybe break out some other pins too?
• Maybe make a "side mount" and a "top/bottom" mount

Lego parts shopping

I want some base plates and parts to use for basic mounting (and maybe a little for playing with).

Here's my notes on shopping. These are all amazon.de links, because I'm in Germany.

• 10713 Starter Case - 213 pieces, assorted colors, 15.83 EUR
• 10698 Classic Large Bricks Box - 790 pieces, assorted colors, 34.99 EUR
  • $60 on LEGO website
  • Includes 1x 6"x6" and 1x 4"x2" green baseplates
• 11001, 11006, 11007 Set - 123 + 52 + 60 pieces, assorted/blue/green, 28.54 EUR

Other resources

I had these two online stores recommended to me, which look like a good choice if I want specific parts/colors. Not sure on the cost of shipping or anything.

• https://www.brickowl.com/
• https://www.bricklink.com
• https://ebay.de
  • There seem to be a lot of people selling batches here
  • The going price seems to be about 20-25EUR/kg, which claims ca. 700 pieces

JLC Tolerances

• Drill Hole Size Tolerance:
  • +0.13/-0.08mm

PCB design

2.0" / 8mm => 6.350 0.9" / 8mm => 2.858

X: 89.84 + Y: 119.05

23 + 39.50 + 32 + 23.50