MJW Octopi Mount for Raspberry Pi Zero W with Camera - Wanhao Duplicator i3 / i3 v2 / i3 v2.1 / i3+ by MJWMakes

Last crawled date: 3 years ago

*UPDATED* Altered the pins to improve fitment, added a channel for the pi ribbon cable.

Description
Do you have a Wanhao i3, i3 v2/2.1 or i3+?
Do you have a Raspberry Pi Zero W and Pi Camera?
Do you want to tie it all together in a sleek, compact system for remote monitoring and control?
Well here's the project for you!
What you'll need:
3 x M6x5mm Bolts (I use Button Head)
3 x M6 Nuts (Regular or Nyloc)
2 x M3x10mm Bolts (I use Socket Head)
2 x M3 Nuts (Regular or Nyloc)
2 x M3 Washers (7mm Max OD)
Printed Parts:
1 x Arm_Piece_Bolt
1 x Arm_Piece_Nut
1 x i3_Frame_Bracket
1 x Octopi_With_Pi_Cam_Body
1 x Octopi_With_Pi_Cam_Lid
1 x Pi_Zero_W_Case_Holder

1 x Raspberry Pi Zero W + microSD card (With OctoPi installed)
1 x Camera Module for Raspberry Pi Zero W
Optional Extras:
1 x DS18B20+ Temperature Sensor
1 x 4.7k Resistor
3 x Small Pieces of Heatshrink

Instructions:
Print all parts.
Gather needed parts.
Install your Raspberry Pi Zero W into the case ("Octopi_With_Pi_Cam_Body" + "Octopi_With_Pi_Cam_Lid"). The Camera Module ribbon cable should fold under the board, and sit nicely in the square cutout on the underside of "Octopi_With_Pi_Cam_Body".
*Optional Step Here - See end*
Slide the Pi-Cam-Case assembly into "Pi_Zero_W_Case_Holder" - The orientation depends on your bed height, there's a few mm up and down for adjustment here.
Using 2 x M3x10 Bolts, Washers and Nuts, attatch "i3_Frame_Bracket" to the spare mounting locations for Z-Stop switches (On the opposite side to your actual Z-stop). Again, there is a few holes to choose from here for adjusting the height of your camera.
Using 1 x M6x5 Bolt and Nut, attach "Arm_Piece_Bolt" to "i3_Frame_Bracket".
Using 1 x M6x5 Bolt and Nut, attach "Arm_Piece_Nut" to "Arm_Piece_Bolt".
Using 1 x M6x5 Bolt and Nut, attach "Arm_Piece_Bolt" to the Pi-Cam-Case-Holder assembly you completed in Step 5.
Sit back and admire your smart new setup!
The mount is adjustable by loosening/tightening the M6 Bolts, the nuts should be retained in the arms. You can also adjust it in the Z direction by using either of the 4 spare Z-Stop locations, and by sliding the Pi Case up and down inside the Holder.
If you need extra length to your arm, simply print off one more of each "Arm_Piece_Bolt" and "Arm_Piece_Nut". You will need an extra 2 x M6x5 Bolts and 2 x M6 Nuts .
 
*Optional Step to Monitor Enclosure/Room Temperature*:
Solder Pin 1 of the DS18B20+ to a piece of wire. Heatshrink over the connection for added strength.
Connect this Wire to the Ground GPIO Pad/Pin on your Pi Zero W.
Solder the 4.7k resistor between Pins 2 and 3 on the DS18B20+, Heatshrinking over the connections if desired.
Connect a length of wire to Pin 2 of the DS18B20+. Heatshrink over the connection for added strength.
Connect this wire to the GPIO4(GPCLK0) Pad/Pin on your Pi Zero W.
Connect a length of wire to Pin 3 of the DS18B20+. Heatshrink over the connection for added strength.
Connect this wire to the 3V3 Power Pad/Pin on your Pi Zero W.
Install the "Room Temperature" Plugin by Frederic Moutin, detailed here: (https://github.com/l00ma/OctoPrint-roomTemp).
Run the three wires through the three channels in the Pi Zero W case, and install your sensor in a location of your choosing.
 
Don't Forget:
You may need to flip your PiCam Stream. Do this from inside the OctoPrint Web UI.
 
Links:
https://github.com/l00ma/OctoPrint-roomTemp - OctoPrint Room Temperature Plugin by Frederic Moutin.
https://github.com/guysoft/OctoPi - OctoPi Build by Guy Sheffer and the community.
https://shop.pimoroni.com/products/raspberry-pi-zero-camera-module - Camera Module for the Raspberry Pi Zero W.