Ramps Cooler/Guard with Status LEDs

thingiverse

As a proud owner of a newborn Reprap Prusa Printer, I am still working on optimizing its performance. One key aspect I learned is the importance of cooling, especially for the thermal barrier in the printer's hot end and its electronics. I tried passively cooling my StepStick stepper motor drivers with heatsinks but found them to be quite hot after extended printing sessions. To address this issue, I designed the Ramps Cooler/Guard – a simple yet effective solution. This design includes three holes for adding two red LEDs and one green LED, which indicate power, heat-bed heater, and extruder tip status respectively. The mounting holes match those of a RAMPS shield (Arduino Mega), potentially making it applicable to other setups. A future version may include a power switch, but users are welcome to modify the design as needed. Note that hole sizes in the OpenScad file must be adjusted according to your printer and hardware. To use, download and open the OpenScad file in OpenScad, print the Ramps Cooler/Guard, attach a 50mm fan, solder resistors to LED legs, connect LEDs and fan wires to RAMPS shield screw terminals, and hope for the best during printing.