RAMPS Case ventilated
Description
Ventilation added, dimensions based on Sepa MFB25B12 12VDC fan nl.farnell.com/sepa/mfb25b12/fan-25mm-12vdc/dp/1217961.
This case is used for a milling machine with relatively slow stepper speeds, no extruderheater and no heated build platform.
The fan is connected to screw terminal D9, with the fan pin assigned to it. Given the fan is quite noisy, I think of adding a thermistor later on and tweak the code so that the Arduino takes care of adaptive cooling.
Ventilation efficiency has not been verified with RAMPS driving a RepRap with extruderheater or heated build platform.
2011-08-24 Minor update (pcb space) of the covers
2011-08-25 The obvious showed after the first print: the fan had to be moved up (to get max airflow along the stepper drivers)
2011-08-29 Attached final OpenSCAD and .stl files.
Instructions
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blokkendoos is the Scad file only for the cover or am I missing something? I just want to make the box longer so I can fit a thicker fan inside.
For those having issues with the SCAD file, you need to change the line dxf="Ramps case.dxf"; to dxf="Ramps_case.dxf";
Not sure what happened but the notches on the covers dont match with the case. Covers have the smaller notched on top but the case has them on the bottom.
The notches are ok. The fan and exhaust should be on top. It's the space on the sides that is mispositioned. For this we all have Dremel-and-the-like tools ;-)
Sorry it is not fully ok, I attached a picture showing the finishing touch. If I find some time, I'll update the .stl files.
Don't forget an exhaust for the hot air. Ventilation only works if you have an outlet on the oposite side since else the hot air is caught inside the case... the outlet has to have about the same size as the inlet to get a good airstream.
License
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