To complete this procedure, you will need:
2.5mm hex wrench, and
Replacement microSD card
If your DeltaMaker has a Raspberry Pi 2 or 3 version, your printer uses a microSD card, rather than the standard size SD card used on the original Raspberry Pi boards.
You may leave the filament spool on the machine for this procedure, if you wish.
Disconnect the power cord and lay the DeltaMaker on its side, with the filament drive motor facing upwards, as shown. This position will prevent possible damage to the drive motor or connectors on the back of the printer.
On the bottom of the printer, there is a plate which needs to be removed to access the slot for the microSD card. Pictured are the three screws that need be removed using the 2.5mm hex wrench.
After removing the bottom plate, temporarily remove the black USB cable from the top right of the machine. This is the power cable for the Raspberry Pi computer board.
Next, remove the microSD card which is plugged into the socket on the right side of the Raspberry Pi. The socket is a spring loaded push-to-release socket. To remove the microSD card, press the exposed end of the card into the socket, and release. The microSD card may now be removed from the Raspberry Pi.
When inserting the new microSD card, ensure that the gold connectors are facing upwards, as shown. Do not force the card into place, it should slide in firmly without too much resistance.
To complete the installation of the card, press the end of the card into the socket until it stops. This will engage the spring-loaded push-to-release socket to hold the microSD card in place. Pressing the card into the socket again will release the card, as was done to remove the old card.
Reconnect the USB cable to the red power supply and to the USB connector marked “Power” on the Raspberry Pi.
Reattach the bottom plate, and return the printer to a normal, upright position. Reconnect the power cord and turn the DeltaMaker on. The DeltaMaker will begin the normal startup process using the new microSD card.