Purge result: this is how things should look like ?

[pelgrim @pelgrim]

Moving forward at light speed (Einstein does not apply in my home, light speed does change all the time in here and gets the speed of a snail if I feel like it)

Attached the result of a purge as 2 jpg file.
This is the expected result of a purge ?

I know, purging has probably nothing to do with calibrating, but I putted in the calibration section of Roboxing Getting Started Walkthrough, under Roboxing Calibration Walkthrough

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java (EE), JavaFX, HTML, GIS) programmer, database wizard, framework inventor, looking for a job ! http://roboxing.com/wizards

[Clicky @clicky]

No - it definitively doesn’t look like a ‘good’ purge. Especially 0.3 nozzle…

[sweeney @sweeney]

The 0.8mm purge looks about OK, the 0.3 seems to be rather worse than normal. Try running a Clean process on the 0.3 a couple of times, then repeat the purge.

[pelgrim @pelgrim]

the fillament curls up around the nozzle most of the time, it’s the first time this head is doing something (besides the factory test).

I made a video of the purge (for roboxing), perhaps this will help: Robox purging

java (EE), JavaFX, HTML, GIS) programmer, database wizard, framework inventor, looking for a job ! http://roboxing.com/wizards

[Clicky @clicky]

What kind of filament is that?

[BHudson @bhudson]

@pelgrim That looks normal for my purges with PLA. ABS tends to be a little better behaved because it cools out of the nozzle faster I think. But many of my purges look just like that with the .3 mm nozzle. I haven’t had a problem with printing with the PLA after a purge like that.

You may want to run your nozzle height calibration again just to be safe, and then run a couple of small prints to make sure your base layer is going down well.

[pelgrim @pelgrim]

Clicky: polar white PLA

BHudson: I will certainly do that. For the moment I’m documenting all calibration and test procedures I could find and put that in the roboxing pages.
About one test a day when I’m home, there is no hurry. Purge was the first.

java (EE), JavaFX, HTML, GIS) programmer, database wizard, framework inventor, looking for a job ! http://roboxing.com/wizards

[gid @gid]

My PLA purges look pretty good compared to that. Well, not at the moment, because my machine’s extruder is on the blink (bad filament sensor, I think)

Just to reiterate for anyone reading, a bad Purge Material result doesn’t necessarily mean anything: I’ve seen a printer at CEL do an incredible print — the best I’ve seen out of Robox so far — and yet it had an atrocious Purge result according to Russ.

However, if the printer is having problems then a Purge Material step can be very useful in diagnosing problems and is a good place to start investigating.

Well done on taking on the calibration pages, @pelgrim… to be honest, I was avoiding working on them under the assumption they’d all be changed “very soon”

Tom Gidden -- Bristol, UK -- New Roboxer? Check out the wiki, and add yourself to the map! http://roboxing.com/user_locations

[Andy S @andylion]

In the video it’s clear that the small nozzle is trying to force out far too much material, which results in it snaking about as the new material pushes the material under the nozzle out of the way. It reminds me of something I’ve read I think on the bridge issue? where the small nozzle was being incorrectly set to extrude as much as the large one?

[pelgrim @pelgrim]

further tests will hopefully reveal if everything is correct or not.

java (EE), JavaFX, HTML, GIS) programmer, database wizard, framework inventor, looking for a job ! http://roboxing.com/wizards

[Clicky @clicky]

Hm. I am sure that purge that looks like that is indication that something is not quite right. Settings or problem in hardware/filament. Since it is the same filament as here - then it is not it. This is how my purges look like (Polar White PLA as well):

• This reply was modified 2 weeks ago by  Clicky.

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[biscuitlad @biscuitlad]

@clicky - wow! I’ve never, ever, seen such a neat purge! That’s text book perfect.

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