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Started by Bad Raven, March 20, 2018, 12:06:30 pm

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Bad Raven

Fabrikator II Mini, printing over USB from Repetier-Host.

Have just got two Eachine E011 quads, which have a differing Tx shape (and 2.4GHz format) to the Eachine E010, despite the quad being almost identical.

The existing stick extensions have too small (not deep enough) fitment area over the Tx stick end. As the radio format is different a E010 Tx cannot be used.

OK, so for quickness I'll mod the E010 published stick end and print some.

So, I have done just that, using Meshmixer. Tried two ways making the Bulb fit the deeper Tx head, and making it a top half of the bulb to glue on.

The results looks OK, and start to print OK, but at some point they bomb the printer, constant "resending", but at quite differing points each time well into the print but far enough apart not to be one area of the print in any plane. It's not crashing at the changed area.

It did print it once fully complete and the quality is as good as ANY print from it if not better!

I have tried various things and remade and re-exported, the same occurs.  There is no error message.

As a control, the original stick end file prints OK, fully completing, NO issue at all.  This printer has otherwise been 100% and not locked up on ANY other .stl files.

SO, pretty obviously something I am doing (and I cannot see if so what), or Meshmixer is doing something to the file while being manipulated or when its exported.

Very frustrating!
HobbyKing Fabrikator II Mini, 100x100x100. (a Malyan printer re-badged) - Modded with magnetic Flex Bed

Original Prusa i3 Mk3 (All Black)

shawdreamer

ok first rule out the design being the issue.

run your STL files through a 3d repair service to make sure there's no unforeseen issues that aernt easily notable with the design.

a good free one is Netfabb, just upload your stl, let it do its business then download the "fixed" version when its done.
https://service.netfabb.com/login.php

now run the "fixed" version on the printer and if all go's well you'll know it was the design.

IF!

that doesnt solve the issue then look at cutting out some of the other possible causes.

personally I NEVER run a print via USB, Ive always found it too laggy and prone to stop starts if the connection between pc and printer gets overloaded or if something big kicks in on the pc.

instead, save your gcode to a micro sd card and slot that into the printer (the mini fab v2 can print from card iirc) and instead instruct the printer to print from the card rather than over usb, that should cut out an issues the usb connection throws up.
Geeetech Prusa i3 pro-B (ABS Workhorse)
Pultur Prusa (my own design)
Poltur XL (my own "MUST BE BIGGER" design)
Poltur XL v.2 (my own "MUST BE BIGGER STILL, MUST USE EXTRUSION" design)
https://www.thingiverse.com/shawdreamer/designs

Bad Raven

The problem file started as a complete file that worked and still works, it came to me as an .stl, the section not required was "cut" and the object made complete. Then it was exported as .stl again and resent to the printer.  Sending to Netfabb and being returned a supposedly OK file has made no difference.  The slicer reported no errors.

HOWEVER.......

The original (and other bigger and smaller) files print perfectly every time when sent from from PC via USB.  ALL my printing so far has been via USB and has been perfect.

I can only assume therefore that the file crashing the printer has a flaw able to cause that crash at various points in the print and that the onboard PC software repair and an external repair service cannot cure it!
HobbyKing Fabrikator II Mini, 100x100x100. (a Malyan printer re-badged) - Modded with magnetic Flex Bed

Original Prusa i3 Mk3 (All Black)


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