![]() I started 3d printing in March of 2012 on my Makerbot Replicator (1). Note: I’ve updated this post to reflect the most recent 3.0 release, in June 2015 Vase Comments Off on Building the C-Bot 3D printer: Part 27 : First ‘really big’ print 2015 07 /22 CATEGORY projects TAGS 3d printing Jump to C-Bot blog index to see all the posts. Even though I have all my stepper voltages tuned in, my Bowden extruder stepper was still getting pretty warm after about an hour, so I pointed a fan at it.Once I bolt the printer down to the table it’s on, it should help lessen the vibration that comes from all that moving mass up on top, and get better quality.And the cooling fan I have on my Rep1 has around 8cfm. ![]() I’m happy with the print quality, but I can see where the neck narrows how the filament isn’t being cooled enough (gets slightly lumpier compared to the larger base): I have a pair of 20cfm fans on order to see if this helps: My current fans are around 4cfm each, which isn’t nearly enough considering this machine easily pushes out 3x the volume of material compared to my Replicator1, at a higher temp.Adding a floor would have definitely pushed the time up. ![]()
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