Reddit reviews RepRap Champion Metal J-Head V6 Hot End for RepRap 3D Printer 1.75mm Filament Bowden Extruder 0.4mm Nozzle Kossel Mini Prusa i3

As I mentioned elsewhere, I'm very happy with this printer.

Building it was an adventure for a first-timer, but you learn SO much in the process. It's also very easy to modify, and I like having the 2020 frame, as it makes it easy to mount things all over the place.

Oh, one note -- the directions that I received with mine were from before the ball screw was part of the kit, so they show you removing the ball screw from its mount to screw it onto the platform -- DO NOT DO THIS. All the bearings will fall out, and your life will suck. Just mount the ball screw as a single unit, never, ever take it apart.

There is nothing in the kit for clamping your belts. I picked up some small binder clips, and they've worked very well for me.

For anyone else stumbling onto this thread (the OP already has been to these), my original thread on this printer is here, an album full of pics is here, and I've since upgraded the extruder and the hotend, although it turns out that the hotend that comes with this kit is already a pretty decent V6 clone.

I've had great luck with AIO Robotics PLA sold on Amazon for around $13 per 0.5 kg. The other PLA brands I've purchased work, but the prints aren't as smooth. I believe it's because the tolerance is better on the AIO Robotics PLA (+/- 0.02 mm). The 3D MARS PLA I bought that doesn't print as smoothly has a wider tolerance of +/- 0.05 mm.

Also, I bought a E3D Full clone hotend on Amazon that is way better than the stock hotend (that often clogged on me).

https://www.amazon.com/gp/product/B01GD8LCFO

And here's the mount you'll need to print for it (there are others that are probably better, but this works for me):

https://www.thingiverse.com/thing:1728736

Monoprice Select Mini V1

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Hotend: https://www.amazon.com/gp/product/B01GD8LCFO/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1

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Cura settings are default selection of "Monoprice Select Mini V1", with some small tweaks

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Bed: Stock down to the metal, with masking tape. Models from Fusion to Cura and Via SD Card

Lots of really good info thanks, it's taken a couple days to digest.

If I was to upgrade my nozzle heatbreak, for around 22$ is this what I would get?

https://www.amazon.com/gp/product/B01GD8LCFO/ref=ox_sc_act_title_1?smid=A2YI8XQU239Q2W&psc=1

I have read that an upgraded all steel won't print PLA well anymore as it is stickier. What did you get? How does it perform?

RepRap Champion Metal J-Head V6 Hot End for RepRap 3D Printer 1.75mm Filament Bowden Extruder 0.4mm Nozzle Kossel Mini Prusa i3 https://www.amazon.com/dp/B01GD8LCFO?ref=yo_pop_ma_swf

I’ve only had my printer a short time too (I think it is is 8 or 9 days old).