E3D-Online extruder in! Amazing piece of hardware - time to see how it prints.

E3D-Online extruder in! Amazing piece of hardware - time to see how it prints. The mendel 90 carriage mount meant for 6mm j-head is the right size, but the depth of the hole is to deep (the thickness of the great SS nozzle is a bit small.) Turns out, this doesn’t matter! When you drive filament into it, it pushes against the retaining washers and keeps it steady. @Sanjay_Mortimer Great job! Great price!

Where is the fan gone? BTW it looks good. :slight_smile:

It does, I took the fan off temporarily to show off the machining.

That is a thing of beauty. A Full Metal Hot End is certainly on my future buy list.

I’ve heard about it recently and also bought it right away a couple of days ago. Looking forward to get it running in my huge delta :slight_smile: Good to have @Sanjay_Mortimer right here on Google+ !

I’m printing a few “washers” of varying thickness with the work printer, as I can’t get a consistent Z-offset with the nozzle jiggling (turns out pressure from filament isn’t enough to steady it.) I’ve also noticed that the temperature control has a longer settling time - @Sanjay_Mortimer - would you have any PID recommended values associated with the cartridge heater / overall hotend? It seems pretty high performance (without looking at the spec sheet.) compared to the ceramic power resistors of the j-head style nozzles.

I think I’ve seen mention of a procedure to calibrate the PID loops - anyone have s guide/proceudre to recommend?

the M303 command? M303 P0 200 (temp in C you want the PID for)

Very interested to see the results from this.

I’ll post when I get it going tomorrow night. And does that command auto tune the loop?

Ok never heard about M303 so far, so I’m also very interested in this. Keep us tuned please :slight_smile:

@Anthony_White It runs several tests and gives you a set of results that you can then add to the FW and recompile with or if you use the Repetier FW enter it in the eeprom settings (though the recompiling into the FW is a better solution)
Not sure all FW’s have M303 it though.

Only just tonight having enough time to dial in the settings (new z-offset) and PID. Melzi control board is being a bit temperamental too. I’ll post when I have the results!

About to post some pictures of the first parts (messing with z-height & temperature for the new nozzle.) Last step is runing the M303 command to tune the PID - but the print thats finishing up now looks like the nicest I’ve ever done on a rep rap. Crazy good!

Where do the new cals get put into the firmware. Like under what heading and all? I just got mine hooked up tonight and am going to go over the firmware in the morning. It’s a beautiful price of equipment for sure!