Summary

---Raspberry Pi 4 Handheld Touchscreen Computer---

---Version 2.0 Is Finally Here!!!---

All New and Improved Design! Better Airflow, Cooling, and Assembly.
This new design features a proper nut & bolt for each corner so you don't have to mount directly into the print like V1.

This is a drop-in replacement for anyone who built the V1. The only thing that has changed is the case design.

I used M3-.50 nuts & bolts for the corners.

I would recommend printing the V2 version with a SLA printer because of the better heat resistance and precision required for the vent areas.

V1 will continue to be available because it is easier to print on basic FDM printers.

(Thanks to One Man Banjo for the new design, Check his stuff out here: https://www.thingiverse.com/one_man_banjo/designs)

It would be nice to have an improved active cooling solution with built-in airflow ducts (channels) and a better heatsink, perhaps a V3 is needed...

----------------

Features:

5,000mAh Rechargeable Battery with a 3+ Hour Runtime, Power Management Software, Programable Button, and Programable low-power Safe Shutdown.

3.5 inch 480 x 320 Resolution Resistive Touch Screen.

Active Cooling with 30mm Fan and Vents for Excess Heat.

Heatsinks for CPU, RAM, and LAN Module.

Access to all Ports (USB, Ethernet, HDMI D, 3.5mm Audio Jack, SD-Card. USB charging via PiSugar USB C or Micro USB.)

Parts List:

Touchscreen with Heatsinks:
https://www.amazon.com/Raspberry-Touchscreen-320x480-Monitor-Display/dp/B07WQW6H9S/

PiSugar 2Plus Battery UPS:
https://www.amazon.com/Pisugar2-Portable-Platform-Raspberry-Accessories/dp/B08D8PPCKN/
(I used the PiSugar 2Pro but the 2Plus is identical.)

Raspberry Pi 4 Model B:
2gb/4gb/8gb Ram (I use the 8gb ram model.)

Micro-SD Card:
(I use 32gb/64gb SanDisk Extreme Cards.)

Micro HDMI to HDMI Adapter:
(Preferably an adapter that supports 4K but not needed.)

4x M3-.50 Nuts
4x M3-.50 Bolts

Software:

SD-Card Imaging Software:
(Balena Etcher OR Raspberry Pi Imager.)
(Raspberry Pi Imager is nice because you can format and erase SD-Cards as well as Download and Flash RPI Compatible Operating Systems.)

Print Settings

Printer brand:

Creality

Printer:

Ender 3 Pro

Rafts:

No

Supports:

Yes

Resolution:

0.4mm

Infill:

50% or Higher

Filament brand:

Hatchbox

Filament color:

Doesn't Matter

Filament material:

PLA/PLA+/PLA2

Notes:

For V2: I recommend using a SLA printer (I use an Anycubic Photon 4k)

For V1: Supports are needed for the screw standoffs.