Mark2 Electronics Installation
Power Supply
RAMPS
Power Input
Motor Connections
Thermistors
EndStops
Heating Elements
Fans
In a single-extruder setup, RAMPS has one connection dedicated to controlling a fan. However, we need to run two fans (technically we only need to control the print fan, HotEnd fan just needs to be on whenever printer is running). To make this easier, each Mark2 kit comes with a fan expansion board which plugs directly into RAMPS. If you are assembling a single-extruder printer, you will have received a TinyFan board (2 fans). If you are assembling a dual-extruder printer, you will have received a MightyFan board (4 fans). For detailed instructions, refer to the page for each board (linked above).
Here are the important steps for using these boards with the Mark2 printer:
- Attach to RAMPS
- Run power cable from power inputs to board
- Connect fans in order:
- 1: Print cooling fan
- 2: HotEnd 1 Fan
- 3: HotEnd 2 Fan (Dual-Extruder Only)
- 4: Not Connected (Dual-Extruder Only)
Optional: LCD Add-on
Optional: Raspberry Pi
Other Electronics
Frame also has mounting points for these RAMPS alternatives:
- Melzi
- Smoothieboard
Other Resources
http://reprap.org/wiki/RAMPS_1.4
http://www.reprap.org/mediawiki/images/0/06/RAMPS_dossier.pdf
http://reprap.org/wiki/Prusa_i3_Rework_Electronics_and_wiring
http://www.nextdayreprap.co.uk/wiring-reprap-prusa-mendel-build-manual/