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Topic: What do you do when you see this?

Your part starts to print, but only pieces here and there and in the middle the extruder looks like it is trying to print on thin air?

Its as if the parts was partially sliced or something. I've redone it, checked for errors, run it through Netfabb, flipped the part 180 degrees, etc. still not right.

Using SU 2013, Netfabb PC version, Reptier Host, SD3 printer

Thank you for your time.

Robox printer, HICTOP (Prusa i3 variant) Model 3DP17 printer, ELEK 2.5W laser engraver, AutoDesk 123D Design, Windows 10

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Re: What do you do when you see this?

It is definitely printing filament in thin air.

Robox printer, HICTOP (Prusa i3 variant) Model 3DP17 printer, ELEK 2.5W laser engraver, AutoDesk 123D Design, Windows 10

3 (edited by DigitalWhitewater 2013-08-10 01:28:34)

Re: What do you do when you see this?

Just a few ideas worth checking...

If this is happening when you start a new print... Have you tried adding a skirt so that the printer hot end get basically primed and is already extruding before it actually starts on the part?

Have you tried homing all your axis and also leveling the bed before printing? Z-axis?

Readjusting the tension on your belts?

Placing a fan at the printer motherboard on the back of the printer? It can over heat easier then you think. When it overheats it can skip steps, causing randomly looking prints. I'd recommend this even if your issue happens to be something different, you'll still see benefit from a fan pointed at the board. I was having issues until I printed a modded cover for the board that allowed for two 40mm fans.

SD2 w/ mods: Rumba controller, ATX PSU, SD pro case, glass bed, with more to come...

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Re: What do you do when you see this?

Does this happen on all prints or just some?  Is it repeatable on the parts it does happen on or is it a random event (sometimes the part prints fine, sometimes not)?

If it is on a particular object you may want to put op the .stl for people to examine.

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Re: What do you do when you see this?

Thanks guys. The printer seems in good order, I can print parts from Thingiverse. I have printed this particular part before just fine but since I made additions to it, it blows up as described.

Here is the stl and drawing in SU 8 format ( the "lingua Franca" of Sketchup).

Again, thanks for your time, I know everyone is busy but I sure appreciate the help.

Post's attachments

RH-Mid25MMBatts-Vers SU 8 without coveb 1.69 mb, 4 downloads since 2013-08-10 

RH-Mid25MMBatts-Vers SU 8 without cover.STL 1.69 mb, 5 downloads since 2013-08-10 

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Robox printer, HICTOP (Prusa i3 variant) Model 3DP17 printer, ELEK 2.5W laser engraver, AutoDesk 123D Design, Windows 10