UniTak3D Ender 3 Direct Drive Upgrade Conversion Bracket for Ender 3 V2,Ender 3 Pro and Voxelab Aquila 3D Printer for B-MG&Dual Gear&Bowden Extruder(NOT for Neo Series,Extruder&Hotend NOT Include)

Very simple upgrade to direct feed. I will be buying more for my other ender 3 printers soon. Took about 29 minutes, had all the parts including servo cable extension. Came with tooks, but found I needed only my metric hex wrench set.

First, using the stock setup on an Ender 3 everything fit perfectly and the printer worked well. I actually had to return the first one I got because two of the holes in the bottom bracket were not threaded. But the second one was perfect. I added a Hero Me setup to my Ender 3 and that is where I had some issues. The positioning of the top plate is constrained to two positions. One for a single gear extruder and the other for a dual gear extruder. Probably for most setups this is sufficient. However, for my Hero Me setup I needed a position in-between the two. I think the design of the top bracket would be improved if instead of holes there was a channel. Then you could line it up however you want. Also, the top bracket is designed so that the motor either sits on or hovers slightly above the screws and it doesn't seem super stable. I ended up designing my own top bracket with a channel and better support for the motor, it is posted on Printables. Even with the improvements that could be made to the top bracket I think this is an excellent product and well worth the cost. The instructions were good and they provided wire, tools, extra screws and cable wraps.

I originally had a 3D printed direct drive conversion which failed when I tried to print higher temps and with an enclosure. This set came to the rescue at a good price. The brackets get the job done but the assembly process is awkward. Ideally you would be able to install the motor to the upper bracket and then attach the upper bracket to the lower bracket. With the provided screws that process is not possible. I swapped out the screws for ones which had a hex head so I could use a spanner wrench to do the final tightening of the upper to lower bracket once I made sure my filament path was aligned. If this kit included hex head hardware it would be fine. If the brackets were adjusted to have the slot on the opposite bracket it would probably be better. This has been working flawlessly on my Ender 3 Pro printing parts for my new Voron.

My WINSINN dual-gear extruder lines up almost perfectly with the hot end as long as I shift the extruder mount plate to the left by 1 screw hole. Totally elegant, no fuss or mods.I would give it a 4 star if this weren't so negligible to me: The spanner that came with this product is not sized correctly for the hex-head bolt they provided to replace the tensioner bolt, it's the same size as the one that comes with the Ender 3 (I actually like it better though cuz it's a bit thicker). I ended up just bolting the tensioner bolt in before putting the extruder on the plate, it took a little thinking to get the order right but it works fine (but I had to leave out the little corner bolt under it, not a problem). The tensioner bolt is inaccessible unless I disassemble it, but thankfully I don't think I'll ever have to adjust mine since it uses that thick yellow spring.One thing in particular I like about this mount is that I can view the gears turning easily as it prints, which is sometimes vital to diagnosing printing issues. It also does not clash on the frame like some of the more weight-balanced printed mounts would (requiring a spacer on the carriage to hit the endstop earlier, thus reducing effective bed X dimensions by ~30mm). I don't observe any leaning-forward or odd vibrations at all even without overtightening the carriage's eccentric nut. Oh also the belt holders are exactly the same spacing as my stock Creality ones.I also was happy that it comes with its own rollers, so I can repurpose my old X rollers for my Y axis since those are much more worn down by now. This was definitely a great purchase.

I used this kit on a Voxelab Aquila. I print almost exclusively in PETG and wanted to convert to direct drive to reduce retraction distances and stringing issues. This kit comes with everything that you need to complete the conversion. I appreciated that the new carriage even has the roller wheels and everything on it so there is no need to transfer from the original hotend carriage. There is adjustment available between the two plates so there is some test fitting necessary to ensure as direct a path as possible between extruder and hotend. Using an aluminum extruder (in my case the Creality grey one), the tension adjustment screw gets swapped with a hex head screw to allow adjustment once assembled. Getting that in along with all four extruder motor fasteners is fiddly but possible. Leaving out the fourth extruder motor bolt that is blocked by the adjustment bolt probably wouldn’t hurt anything though. The adjustment screw itself isn’t the easiest to access or adjust once fully assembled, but personally I never really seem to need to adjust it, so this was a non-issue. Overall the kit is well made and everything fit and worked well.