Upside-Down Printing: Tested on a Voron Trident!

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The Positron 3D printer and the Kokoni Sota 3D printer go upside-down.
I was curious about that, flipped my Voron Trident upside-down and check-out the differences in performance, printing and more! Possibly non-sense, but worth checking out on a CoreXY printer. Let's see how the Measured Resonances and Input Shaping react to the inversion of the Voron Trident - we also do extreme bridging, a 3D printing Benchmark-Test and of course comparing a 3DBenchy for default and upside-down stance! Is that faster?

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00:00 Intro and sponsor.
02:56 Upside-Down Conversion is Easy.
04:01 Resonances and Inputshaping.
06:24 Printing Tests and Extreme Bridging.
09:07 Verdict on 3D Printing Upside-Down.

#3dprinting #voron #247printing #trident #vtd #additivemanufacturing #diyprinter #diy #diyproject

[printing]

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[Kaiged]

The main potential advantage is in automation, getting the part to drop off the bed directly into a bin without a complicated mechanism.

[meikgeik]

I want a positron solely for the portability factor. I travel a lot with large chunks of downtime sprinkled into my trips. Being able to chuck a printer in my suitcase would be huge for my mental health as I tinker when I'm bored. On trips I tend to just watch tv during downtime or eat way too much food. Being able to print on the go would be so cool. On the trips where I'm able to find a makerspace that does day passes, I am MUCH more happy.

[printing]

What do you think about the Positron, the Kokoni Sota or Upside-Down printing in general? Please tell me!

[ksweens]

I think printing sideways would be an interest test in addition to upside down.

[noanyobiseniss]

What you missed is a speed benchy from both configurations!

[Eronpas]

I suspect that bridging is solely influenced by cooling, lower down, the part cooling (and bambu aux fan) might interact with the bed surface. I can't imagine the temperature difference of a few degrees to make a big difference in relation to the temperature of the extruded plastic. If that were the case, pre-heating the enclosed build volume would also improve bridging, which might be worth a test.

[DrewLSsix]

I think the future of 3d printing is placing the whole machine in a giant gimbal that allows it to be oriented in any direction!

But semi seriously, I wonder how well bridging would work with the machine tilted 90 degrees? If you are trying to bridge gaps that are perfectly vertical you might get actual good results since the first layers will probably not deviate from their intended locations.

[ttv_botiefyed]

Yo ngl I love the content u make man because unlike some other people you’re videos are easy to follow, keep this up man!

[segment]

Except for the positron. I feel that upside down printing could only be use full if the print detached it self after printing and thus the printer could start with the next part automatically.

[Colakaka]

One major disadvantage of the upside down is that stringing or failures can damage the toolhead. Also you need quite the good bed adhesion for heavier prints.

[orphax]

As said in your conclusion, upside down printing was mainly chosen by kralyn3d to limit the bulkiness of the frame as all acceleratig parts are mire or less directly supported by the base, except that and the better view offered to check buildplate adhesion there wasn't lots of difference with normal upside fdm printing

[shiniestdome]

I tried that with my rusty i3 Mega 2 or 3 years ago. If you set bridges to mm/h and turn the part cooling to 11 you can print 90° without support. A teflon coated nozzle helps too but I couldn't find a super wide one. Had to grind a brass nozzle until it had a 4mm wide flat surface. Tried polishing it but that just made it collect even more goop. Either use a very pointy or a coated flat nozzle.
I abandoned the idea because nobody would be able to print models with internal 90° angles. Still think thus is the correct orientation instead of what we all do.

[lpanic]

Horizontal bridging probably had better cooling because air from the printer head would collide with the plate and blow practically from top and bottom while in vertical scenario cooling would be significantly weaker.

[linyongzheng]

One last bridging test that could be tested is taller pillars with unblocked bridging to determine whether it was the lower bridges shielding the hotbed from higher bridges or just distance away from hotbed.

[darthokuz]

I tried this with my 2.4. I switched back to regular after bed started to bend and required a lot more glue otherwise prints would fall. Especially PLA parts.

[crashingsux]

This video is very interesting and makes me wonder about other angles and their impact on bridging. 45 degrees rotated? 90 degrees?

[turtel]

Thanks for the great video! It would be interesting to see the effects if you have the electronics on the bottom. Will there be next video about that?

[thenextlayer]

I managed to get 75 degree overhangs and significantly better overhangs on the positron than even my P1S with the aux fan. Not sure why your results weren't similarly impressive going upside down.

[mattw]

Now we need an inverted-imverted electronics bay.