Portable Handheld

Portable retropie system inspired by the pocket pigrrl

V0.95

• in progress
• run make -j4 to build

Prototype V0.9

TODO

• add photos of printed prototype to github!
• come up with a good name
• make a BoM
• address fixes for model listed in main.scad
• automate building stl's for individual parts of model
• polish and share software setup scripts
• put on thingiverse

Design Goals

• must fit in pocket
• must be sturdy
• expose audio and hdmi on side of case
• must be modular and easy to replace parts

Printing Instructions

• prototype STLs are available in the v0.9 folder (v1 is pending some improvements listed in main.scad)

• needs to be printed in 2 halves, a front half and back half.

  • no supports needed!

• print 12 washer_4mm.stl (color does not matter, these are internal) if using 4-40 x 3/8" screws (these were the screws I had on hand, and were recommended for the pigrrl 2 )

Printing Instructions

Make sure your printer is calibrated well! https://www.thingiverse.com/thing:533472/files I recommend the negative space tolerance test.

• PETG/PLA preferable:
  • front_case.stl
    • flip upside down!
  • back_case.stl
• flexible plastic
  • front buttons: print both together!
    • front_buttons.stl
    • front_flex.stl
• back button: not sure how to handle these, need to rethink L/R positioning.
  • LR_button.stl 2x
  • LR_flex.stl 2x

Parts

parts list comes to about $120 of hardware from Adafruit, including the battery, sd card and pi.

• TODO this list is not complete
• Raspberry pi 3 A+
• Adafruit PITFT 2.4" touchscreen
• 26-pin cable
• powerboost 1000c
  • no substitutes!
  • decent power supply
• perfboard
• #4-40 3/8 screws
  • possibly substitute with M3 and modify screws in main.scad
  • depending on length, printed washer_4mm may not be needed
• slim tactile buttons for PITFT
• soft tactile buttons
  • can substitute with (clicky switches)[https://www.adafruit.com/product/367]
• wires
• sd card, one big enough for all your games!
• slide switch
• 3.7v 200mAh battery