Replicator 1 Cooling Fan
by jer, published
With the latest version, I've been getting very successful PLA prints.
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After I downloaded your file, I would say to print it in one piece is actually easier for me to use it. The extra printing time due to support is definitely worth it.
I'm currently using sailfish 7.4 without problems. This can happen for all sorts of reasons, from shorts/opens to software configuration. All I can suggest is for you to check to make sure its wired up properly (polarity and/or loose connections). You can also enable/disable the cooling fan manually from the menu to see if its a problem in your gcode.
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If you've previously downloaded, please update to the newest version. The latest version lowers the nozzel and focuses the airflow for much better cooling. I've also split the .stl files for easier printing. You'll now need to glue the two pieces together, but you can print without support material.
After installing the nozzle onto the carriage and before attching the cooling fan, I tape over the bolt holes on the inside of the nozzle. This will help keep the nozzle pressure up. I also started using a different fan, one with alot more static pressure.
Connect the cooling fan to the extra FET on the mightyboard. Using the latest Makerbot or Sailfish firmware (7.5 at the time of this writing) the fan can be controlled either by gcode or from the control menus.
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