Dude STOP. While I understand the decisions that led you down the PSU fan modifications, what you just created is potentially lethal if anything goes wrong. By "trimming down" the fan you have made the fans electronics much more exposed and that danger is compounded by the fact you have attached the remaining parts of the fan to the PSU's mains containing PCB. While the glue sure won't conduct, if something comes loose and shorts with the fan electronics, there is the potential of your low voltage side going up to mains voltages. While somewhat unlikely, it is not impossible for you to then receive a deadly shock trough your display for example. Not to drop any credentials here but as a professional electronics engineer I urge you not to perform these kind of modifications. Swapping the fan is fine if you know what you're doing but this trimming modification is dangerous. At the very least, while it does not help with the aforementioned shock hazard, please print some sort of shroud for that fan so nobody can accidentally out their fingers inside the PSU. There is a reason the PSU is enclosed on grounded metal and that reason is the desire to keep the user alive.

Dang dude, you’re criminally underrated for the amount of mods you’re testing out and making for the community. This is really great stuff. Keep it up!!!

“Took awhile to work out the bug” says that while pulling ladybugs off print bed xD

I googled "I am really smart and can figure it out by myself" but didnt find what I was looking for. lmao

That whole PSU fan mod is a no-go my friend, just order a fan that fits.

Your videos are like Instagram without filters and I love it.

The print quality difference between both paths has nothing to do with bowden tube, but the extruder that you're using. If one extruder has a different transmission ratio than the other, and you're using the same transmission ratio for both, you're going to get a bad result with one, and the correct result with the other. Also, one is likely a better extruder than Ender's stock extruder.

That is a fire hazard waiting to happen.

Finally someone did it 🙏🙏

That, was, awesome! You really need to do a deep dive video into the new hotend and dual DD. I'm susrprised you didn't use a larger platform like the CR10 series for this mod. Great video, keep it up.

I'm halfway through my mechanical engineering degree and I would just like to say I love how much useful information related to mechanical engineering/design you put in these videos. You're a great teacher as well, and I hope the algorithm blesses you soon, because you deserve it

1:20-1:50 had me crying. It’s beautiful

Safety warning @1:14 Do not take a swig of isopropyl alcohol. Take several.

I would be happy to see more investigation of the nylon/Nylon-CF combined prints. Now there are other printers which easily do multi-material, so it doesn't need to be done with the hacked Ender 3...

really cool, cant wait to see how the nylon mates up

Just discovered this channel and I'm hooked, keep up the good content.

If there is a will, there is a way! Well done

Dayum, great video! I have a spare parts printer monstrosity I named Frankenprinter'sMonster but now ya got me thinking I need to pick up a couple of enders to merge frame & parts into a giant idex beast to name BrideofFrankenprinter'sMonster,TheEndering!! which really just rolls off the tongue. You, sir, are an inspiration

This is absolutely ridiculous and overkill. It's perfect. Give it a name.

Oh yeah! Will enjoy after work!

Awesome work as always, thanks for the shoutout!

1:56 literally wrench access lol

I’m just here for the jokes

You are inventing amazing things.

Love the content and the comedy. Especially the fans lol

Did you run the two z axes in parallel? Interesting video! Im excited to see the duel nylon tests.

Since you already added an additional mcu and have extra stepper drivers now, you might as well wire your second z stepper to that board. Combined with a bed probe it will allow you to auto level the gantry with the independent z control. Lost z steps no longer an issue.

this wasnt really a "how to" video, was it?🤣 I do love it tho!

incredible!

Very cleaver!

Def would like to see more videos with this hotend. Specifically some stringing test results. Seems like most 2in 1out hotends are very difficult to eliminate severe stringing.

wow. Always pushing the envelope(s)! Happy hacking!

I wonder how many out takes you have because you couldn’t stop laughing trying to get the joke out in a complete sentence 😂

You have a 3d printer -- print a PSU enclosure to use the noctua fan without the jankiness -- this is super unsafe. You can also get low profile quiet fans -- 12v fans on par with Noctua (they're not the only brand that makes quiet fans) are easily available, and even 24v PSUs tend to use 12v fans. I've been running a 24v psu which runs 16 steppers and 4 hotends with a replaced low profile quiet fan for almost 5 years with no issues -- easy drop in, no surgery required. That part was cringeworthy.

This is magic!

First try :D:D Pretty cool project. I had no idea you can split parts of 3d printer parts to various control boards. Totally dual.

Cool video and interesting mods. BUT, that bowden to direct drive comparison was definitely not correct. Just make sure to compare things like that properly because that comparison was misleading.

WOW!!! I could only watch the first few minutes. This is one of those videos where the guy has NO idea what he's talking about. First the fan in the power supply. Removing the outer shell of the fan will cause it to move LESS air than what you replaced it with. It needs the ducting to work correctly. Second, your regulator. Its funny you have the data sheet right in front of you, yet you used no capacitors on the input or output of the regulator. A HUGE MISTEAKE!!! Dude learn what your doing before you tell people what to do. There are far to many sheeple out there that will just blindly follow people

#RatRodMods ;) That wrench mount steals the show for me. haha Some cool ideas here man.

Definitely worth swapping the extruder steppers for pancake steppers - a BMG extruder doesn't need the torque of that big stepper.

That psu fan mod was... Alot considering you can print a cover

Hi Nathan, I 've got a Taichi hotend, but i could not finish a print, because the tip of the filament is stringing and deforming during the first swap, causing clogs. I'm running it with a bowden setup, but I'm planning to make it dual direct drive. do you have some suggestion? whats your retractions settings? Thanks

be careful with the taichi, my pre-pro unit snapper one of the supporting screws in the heaterblock when I was *unscrewing* it

Dude, just got one of these hotends to play around with, have you got a link or example of your config for the two extruders with a single heater and thermistor?

Anyone else here after reading the hackaday article?

This hotend clogs constantly despite everything I tried. Umteen different retraction settings, different fans, different filament. It is going in the junk bin & goodbye to the $120 buck I paid for it. Going back to the Dragonfly hotends that work great & I will build a tool changer instead.☹

I Appreciate what you are building, just not how you are doing it, or that noctua fan that you destroyed had me cringing,