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Mine is mounted on an acrylic plate, I used 5mm spacers and insulation under the heatbed. The insulation is non-itch pipe wrap I found in Lowe's plumbing section. The insulation keeps the acrylic from getting to hot.
by
stephenrc
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General
Host software would be something like pronterface or repetier host.
The noise sounds normal to me. The thunk is when it's energized, and the hum is caused by the way the driver supplies power to the stepper.
by
stephenrc
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General
The slicing software you're using is set to the wrong temperature.
by
stephenrc
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Printing
The way I measure the filament is to use a digital caliper. Once the hotend is up to temperature. One end of the caliper sits where the filament goes into the extruder, extend the caliper about 50mm and hold the filament against the moving part of the calipers, zero the caliper and extrude 30mm. I use 30mm/sec, it's not to fast to hold onto. Then read what the caliper shows for the actual feed.
by
stephenrc
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RAMPS Electronics
When you extrude 30mm, the firmware requires you to measure the filament going in, not what comes out the nozzle. For example: if you're using Marlin, then you adjust the DEFAULT_AXIS_STEPS_PER_UNIT for E until the filament length matches what you told it to extrude.
by
stephenrc
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RAMPS Electronics
Printer and Filament tab, put a check mark next to "Use relative E distances:" will replace it with M83. Does your firmware use absolute or relative distances for the extruder?
by
stephenrc
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Slic3r
It takes mine about 5 minutes to warm up. I do have insulation under it. I found an 'itch free' pipe wrap in the plumbing area in Lowe's, it's cotton with a foil backing. I'm using RAMPS 1.4 with an ebay 30A 12vdc power supply.
by
stephenrc
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General