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Re: Latest Firmware for TAZ5 - advanced development version

Posted: Wed Jun 01, 2016 5:31 pm
by XScorpion2
How risky would this be, or rather how crazy would you have to be to try with a titan extruder / e3d-v6 hot end vs just grabbing the stock 2016Q2 firmware and updating the config to fix the reverse extruder?
This is all considering I've never compiled / flashed the firmware on my Taz 5 before and that I'm a professional software engineer, just starting to get my feet wet with arduino platforms?

Edit: Eh, this seems easy enough...let's do it!

Re: Latest Firmware for TAZ5 - advanced development version

Posted: Sun Jun 05, 2016 10:33 pm
by XScorpion2
Alright, spent the entire weekend fine tuning the slicer and stock firmware settings before jumping into this new firmware. Here's the before results: Pimples from retraction, Z-Wobble, Overhang blobs, but over all one of the best prints I've gotten from my TAZ 5.

Tomorrow will be new firmware testing time. I've got to sleep sometime!

Re: Latest Firmware for TAZ5 - advanced development version

Posted: Sun Jun 05, 2016 11:08 pm
by Sebastian
One note for your test, with your modified extruder your free filament length between the hobbed bolt and the nozzle seems to be shorter than with the stock Gregs wade. This means your best k factor may be a little bit smaller than the 75 I set for default for PLA.

Re: Latest Firmware for TAZ5 - advanced development version

Posted: Mon Jun 06, 2016 8:04 pm
by XScorpion2
Hmm, not sure if I did something wrong or the K value isn't needed with the Titan extruder. From left to right (preview rotated bottom to top): Stock, K0, K15, K30 printing now but looking identical to these three.
Using Simplify3d, 0.2 layer height, 205 temperature, 50 mm/s print speed, 1.5mm retraction (not firmware). Thoughts?

Re: Latest Firmware for TAZ5 - advanced development version

Posted: Mon Jun 06, 2016 10:25 pm
by Sebastian
It's very likely the Titan helps with bleeding edges, but that much. .?
Two ideas:
Are the outer perimeters really printed with 50mm/s or only the inner ones?
Is the print speed slowed down due to cooling settings?

Re: Latest Firmware for TAZ5 - advanced development version

Posted: Tue Jun 07, 2016 7:09 am
by billyd
Forgot to come back and say I have gotten rid of the gaps I was originally getting in fine detail by turning on firmware retraction and getting my esteps properly tuned. This firmware is great. Nice job Sebastian. My Taz is finally printing things correctly.

Re: Latest Firmware for TAZ5 - advanced development version

Posted: Tue Jun 07, 2016 7:21 am
by XScorpion2
Sebastian wrote: Are the outer perimeters really printed with 50mm/s or only the inner ones?
Is the print speed slowed down due to cooling settings?
Ah, that might be it. I'll turn off cooling speed reduction and have everything print at the same speed and reprint.

Re: Latest Firmware for TAZ5 - advanced development version

Posted: Tue Jun 07, 2016 8:00 am
by Sebastian
billyd wrote:Forgot to come back and say I have gotten rid of the gaps I was originally getting in fine detail by turning on firmware retraction and getting my esteps properly tuned. This firmware is great. Nice job Sebastian. My Taz is finally printing things correctly.
Thanks, it's always good to have feedback :)

Re: Latest Firmware for TAZ5 - advanced development version

Posted: Tue Jun 07, 2016 5:53 pm
by XScorpion2
*sigh* I've got good news and bad news:

The Good:
Updated the gcode to print entirely at 60mms, was working great. Got K0 and K25 test prints done and was working on a K50 print.

The Bad:
My TAZ 5 has released the magic smoke and no longer works. =( The Z-Axis driver burnt to a crisp, and I found the heatsink that should have been on it with some black smoke around one edge.

Time to go cry into a beer.

Re: Latest Firmware for TAZ5 - advanced development version

Posted: Tue Jun 07, 2016 10:34 pm
by Sebastian
That's bad! :(
The "good" news: that's not due to the fw change, i changed non of the xyz stepper code and i paid attention to keep the current settings at stock level (all axes,bed and nozzle)

This problem can be found too often in this forum, maybe Lulzbot should check their used glue.. Or was your printer inside a box or heat chamber?

Edit: even when the heat sink comes down, the driver should be ok because it has a built in over temperature protection. It disables the stepper until the temperature goes down again. Do you tried reattaching the heat sink, let it cool down and try again?