Ben, I just discovered your show on YouTube [Build a 3D Printer...] revisited.
I have a few questions about your build-
1. Power supply- is it a rechargeable battery or direct plug in?
2. The SD Card- could this be modified to accept multiple format removable storage? (USB, micro SD, etc)
3. What case materials could/should be used and pros/cons?
4. Could a rooted andriod device be used for a control panel, or is there some other touch screen option?
5. Have you addressed any aesthetics for this build?
6. What about a filament feeder- perhaps a swing out arm to hold the spool?
7. Is there any way to "automate" the Y axis tray movement for closure?
Thanks and great builds!