Sourcing Components

This page is to collect useful links and so on to make it easier to source components.

The ruby export script will generate DXF files for all the "panel" parts - these were originally laser cut from 3mm polycarbonate.

The "delrin plates" were machined from plastic (Delrin), and the feet were machined from rubber (though we've successfully 3D printed them).

OpenBeam can be bought from quite a few places - for example Technobots. They probably also sell the M3 screws, nuts, motors, and bearings. NB the screws are listed in the bill of materials twice - once on their own, and once as part of the "screw with nut" assembly. That means that you need only order the number of screws listed - you don't need to add in the "screw with nut" number as well.

Parts list, annotated

• 1x Assembly - Heater Elements This is the only "Assembly" that isn't listed elsewhere as "Parts", panels or fixings. Ceramic heaters are removed from a fan heater that runs off a car cigarette lighter socket (there are loads of clones on ebay and amazon).

• 2x Part - 60mm Fan This should be 15mm thick to fit nicely. Can be ordered from RS/Farnell/Mouser etc. or pinched from electronic junk.

• 1x Part - Arduino DUE

• 1x Part - Arduino Metro

• 1x Part - Arduino Shield Only one Arduino is needed in the electronics module at the back - but there are 2 in the parts list. If you use servo motors with encoders, you might need to add another microcontroller to deal with that (this was mounted between the motors, on top of the device).

1x Part - Choc Bloc 2x Part - DC MotorWith Encoder 1x Part - DFROBOT USB Touch Screen 2x Part - DS18B20 Temperature Sensor 2x Part - Fan Blades 1x Part - Flap Servo

• 2x Part - Back Foot

• 2x Part - Front Foot These were machined from rubber, though they could be 3D printed. Rubber is good for stability and vibration damping.

• 1x Part - HDMI Flat 90

• 1x Part - HDMI Plug The "flat 90" is used to bring the Raspberry Pi HDMI port out of the box - otherwise you have to plug an HDMI cable into the bottom of the assembly, which is inconvenient. Pay attention to the picture when you order it though - because the HDMI connector is not reversible, there are right- and left-handed versions of this and you need to make sure you get the right one... The plug is part of the Raspberry Pi assembly and doesn't need to be purchased.

• 1x Part - Header 1x15

• 1x Part - Header 1x15#1

• 1x Part - Header 2x3 The above headers are actually part of an Arduino and not something you need to buy!

• 1x Part - Humidity Tube

• 1x Part - Inlet Tube Horizontal

• 1x Part - Inlet Tube Vertical

• 1x Part - Outlet Tube Horizontal

• 1x Part - Outlet Tube Vertical

• 4x Part - Tube Coupler

• 2x Part - Tube Elbow

• 1x Part - Small Fogger See the Sketchup file for details: any tubing about the right size should do, the original used a 90 degree fitting designed for water cooling systems for PCs. The fogger is easily found for around £10 on eBay - search for "ultrasonic fogger". Many of them have "atmospheric" LEDs on them, the one pictured doesn't, but either should still work.

• 2x Part - M8 Lead Screw Depending on the shaft coupler you use, this is 265-275mm long. If you want to use a 5mm-5mm coupler, you can turn down one end to 5mm on a lathe if you have one.

• 1x Part - Motor Driver This will depend on whether you use stepper motors or servos - a "CNC Shield" (eBay) is probably a good first attempt if you're using steppers.

• 2x Part - Nema 17 stepper motor Buy this from your favourite robot shop!

• 2x Part - OpenBeam Bearing Mount

• 2x Part - 608 skate bearing The bearing and bearing mount can be bought in a single package from Technobots or other OpenBeam retailers.

• 1x Part - PSU The original was a

• 1x Part - Raspberry Pi Camera

• 1x Part - Raspberry Pi Model B

• 1x Part - Relay Board

• 1x Part - Servo Horn

• 2x Part - Servo Motor

• 2x Part - Shaft Coupler

• 1x Part - USB OTG Cable