Bottom Plate

Get the 3D printed bottom plate and the two brackets. Gather up the following  the fasteners:

• 6x M3 x 4mm long machine screws

Install Brackets

Place one of the brackets over the three mounting holes on the bottom plate. 

Insert and fasten three screws to secure the bracket to the bottom plate.

Repeat the steps above for the second bracket.

Case Sides

Get the left and right sides of the case along with the needed fasteners:

• 6x M3 x 4mm long machine s crews

Secure Sides

Place the left piece under the left bracket with the three mounting holes lined up.

Insert and fasten the screws to secure the parts together.

Repeat the steps above on the right side case piece.

Keyboard Case

Get the keyboard case and needed fasteners ready:

• 4x M3 x 8mm long machine screws
• 3x M3 x 6mm long machine screws

Attach Keyboard Case to Bottom Plate

Place the keyboard case up against the bottom plate and side pieces with the mounting holes lined up.

Insert and fasten the three M3 x 6mm long screws to secure the keyboard case to the bottom plate.

Attach Sides to Keyboard Case

Insert and fasten an M3 x 8mm long machine screws to secure the keyboard case to the left piece.

Repeat the process for the right side.

Attach Keyboard Case

Insert another M3 x 8mm long machine screw through the opposite side of the case to secure the parts together.

Repeat the process for the right side.

Double check all of the parts are tightly secured.

Back Cover

Get the back cover and needed fasteners ready:

• 3x M3 x 6mm long machine screws

Attach Back Cover

Orient the back cover with the bottom plate so it's in the correct orientation.

Slide the back cover into case pieces with the nubs on the sides fitting through the side rails.

Push the back cover down until the three mounting holes line up with the bottom plate.

Insert and fasten the screws to secure the back cover to the the bottom plate.

Fruit Jam PCB Mount

Get the PCB mount for the Fruit Jam along with the needed fasteners ready.

Place the Fruit Jam onto the mount with the mounting holes lined up.

Insert and fasten three M3 x 6mm long machine screws to secure the Fruit Jam to the PCB mount.

Secure Fruit Jam to Case

Place the Fruit Jam PCB mount into the case assembly in the correct orientation as shown here.

While holding the PCB mount in place, insert and fasten 4x M3 x 6mm long machine screws to secure it to the bottom plate.

Double check the Fruit Jam is in the correct orientation.

BM43 PCB Mount

Get the BM43 keyboard and PCB mount ready along with the needed fasteners.

Place the PCB over the mount with the mounting holes lined up.

Insert and fasten five M2 x 6mm long machine screws to secure the PCB to the mount.

Key Switch Stabilizers

Get the three key switch stabilizers ready to install.

Insert the stabilizers to the three locations on the BM43 keyboard PCB.

Ensure the clips from the stabilizers are fully seated and flush with the PCB.

HDMI USB-C Cable

Get the HDMI USB-C panel mount extension cable ready. Remove the two included screws from the end of the cable.

Install HDMI+USB-C

Fit the panel mount cable through the circular cutout on the back cover with the two mounting holes lined up.

While holding the cable in place, insert and fasten the two screws.

Coil the excess cable and nestle it into the enclosure.

Plug in the HDMI cable to the DVI port on the Fruit Jam.

USB-C Adapter

Plug the USB-C female-to-female adapter to the USB-C cable of the dual panel mount extension cable. Then, plug in the slim right-angled USB-C cable into the coupler.

Connect the slim right-angled USB-C cable into USB-C port on the Fruit Jam.

USB-A Cable

Get the USB-A extension cable ready.

Fit the USB-A cable through the rectangular cutout on the back cover. Press the socket end of the cable to snap it into place.

Connected Cables

Insert the plug from the USB-A cable to the USB-A port on the Fruit Jam.

Take a moment to inspect all of the extension cables are correctly installed.

USB Cable for Keyboard

Get the short USB-C cable ready. Plug the cable to the remaining USB-A port on the Fruit Jam.

Place the USB-C end of the cable through the notch on the upper left side of the keyboard case. 

Install BM43 to Case

Get the BM43 keyboard PCB and the four M3 x 10mm long machine screws ready.

Connect the short USB-C cable to the USB-C port on the BM43 keyboard PCB.

Place the BM43 PCB mount into the keyboard case with the four mounting holes lined up.

Secure BM43

Insert and fasten the four M3 x 10mm long machine screws to secure the BM43 PCB mount to the keyboard case.

Install Key Switches and Key Caps

Get the 43 key switches and key caps ready.

Install the key switches into the key sockets on the BM43 PCB following the keymap.

Then, install the key caps onto the key switches.

Keyboard Top Cover

Place the keyboard cover onto the keyboard case in the correct orientation. Firmly press the parts together to snap fit them.

Disk II Case Parts

Get the parts for building the SD card enclosure together:

• 8x M3 x 6mm long machine screws
• 4x rubber bumper feet

SD Card Adapter Teardown

Use a prying tool to separate the two halves of the enclosure from the SD card adapter.

Remove the SD card adapter PCB from the plastic enclosure.

Install SD Mount

Place the SD mount cover over the SD card PCB with the curved cutout lined up.

Place the SD card mount over the front plate of the SD card case with the four mounting holes lined up.

Secure SD Card

While holding the two parts clamped together, insert and fasten four M3 x 6mm long machine screws to secure the parts together.

Disk II Case Assembly

Get the Disk II SD card case bottom and sleeve parts together. 

Orient the two parts correctly following the assembly photo.

Slide the bottom plate into the sleeve so the four mounting holes line up.

Secure Disk Case Parts

Insert and fasten four M3 x 6mm long machine screws to secure the sleeve to the bottom plate.

Install Front to Disk Case

Orient the front plate with the case. Insert the microSD card ribbon cable end through the case and out the center slit on the bottom plate.

Pull the ribbon cable through and firmly press the front plate into the case with the nubs fitting through the notches.

Rubber Feet

Stick the four rubber bumper feet onto the corners of the bottom of the case.

Assembled SD Card Disk Case

Test the parts by inserting a standard sized SD card into the SD slot.

If you have a microSD card, you can use a microSD card to SD card adapter commonly included with microSD cards.

Connect SD Card Adapter

Insert the microSD card end of the SD card adapter through the slit on the right side of the main case.

Plug in the microSD card bit into the microSD card slot on the Fruit Jam.

Pull the excess ribbon cable into the main case.

Install Top Cover

Orient the top cover with the main case. Press the top cover into the case so the posts are fitted through the corresponding connection points.