one of the parts links is no longer available.

What does this need to made of?   Reading between the lines, I'm guessing that PLA won't work and people haven mentioned PETG.   Does it have to be PETG?

I just snagged one of these printers for $135 USD on a Prime Day Sale!

Am I glad I found this project before it arrived. I'll be my first "serious" print after it gets here.

My Lucky Cat came out well so I started this printing. We'll see in the morning how it turned out. Looks good so far. Here's hoping I won't actually need it in the near future. Though I am anxious to upgrade and mod a few things on the printer. 

Thanks again for making this and sharing it!

Would anyone happen to know of a parts source in the US?  The shipping alone from the UK is a real killer.  Still, I want to make sure I'm getting the right parts for the mod.

Two questions. 

1. The mount isn't tight enough to prevent the hotend from rotating in place. Is that normal? 

2. When I send the machine to Home, the nozzle is a bit lower in Y than the stock hotend. It's even beyond the leveling screws. Is there a way to adjust the firmware to move it back up?

Thank you Benchoff for that project. It 'll be   one of the first upgrades on my new MP select mini. I'm confused because  one picture shows     a fan an a fan shroud but your article doesn't mention that . 

Here's a version of the files that fixes the "hex nut gap in side of adapter" issue on some slicers. It's just a slightly wider (1mm on each side) version of the adapter. Note you will have to sand down the sides a little to make it fit as it is wider, so only use this if you have a gap near the hex nuts on the back.

https://drive.google.com/open?id=14-mBpWTrJzFiU55D3VWbSs6osLoH_cPs

Also this adapter works with the E3D Lite. The only difference between the E3D Lite and the E3D is that the E3D is all metal, whereas the E3D lite has a replaceable PTFE-liner inside it. This means you can only print up to 245oC (PLA and ABS) and your print speed is slightly limited.

More info here - https://e3d-online.com/blog/2015/04/01/lite6-for-all/

I bought a MP Select Mini recently, and am currently upgrading to an E3D hotend.  It seems that this is one of those V1 models that was manufactured right around the time the V2 came out, so it has a weird mix of internals from the V1 and V2 (and the firmware cannot be reflashed or updated currently because it is radically different from what the V1 originally had).  The adapter piece that mounts to the carriage appears to be too tall -- there's a horizontal plastic piece on the carriage that prevents me from fitting the adapter properly.  I'm going to need to modify the model to shorten up the plastic under where the two hex nuts are installed.  That should be easy enough to do, and once I get it dialed in, I can publish the modified STL file.

Going to go ahead and buy a E3D V6 hotend but don't know if I need the long or short version.

Do I need the long or short version of a E3D V6 hotend?????

How come ever since I installed the new hotend my printer boots up saying immediately that the hotend is at 320 Celsius? What am I doing wrong? I need help ASAP

Will the fan that comes with the printer work with the E3D V6 hotend or do you need a different fan?

For anyone trying to figure out how to remove the original heatsink, there are two bolts behind the horizontal band.  If you remove the small spring tensioner  on the band then there is enough wiggle room to push the black band down and insert a hex wrench without tearing the entire printer apart.

I've been using a 60 degree heated bed and 240 degree extruder with the cooling fan disabled and a low (30m/s) print speed. It's worked fine for the few parts I've printed.

Got a new bracket printed for when the hotend fails.  Thanks for the work in making it available.  Makergeeks PETG was a great suggestion!  I have reprinted a few things already just so it would be make of the better plastic. Mainly the filament pressure control arm (which everyone should print now as well since my was cracked and they really are not that strong to begin with).  I am curious if you have a layer cooling fan on your Monoprice mini.  Or do you just use the blue one that came with the hotend without a layer cooler?  Thanks for your info

I'm completely new to all of this, but gauging my level, as a complete noob, what does the full replacement look like? I'm excited but worried about possibly ripping this printer apart, but I definitly don't see any screws on the stock heat sink, how would I remove that?

The adapter required some massaging to get it to fit. It was a bit too tight around the heat spreader, but it worked. What I found though is that E3D recently moved to a custom thermistor, so it's not quite a drop-in replacement hotend. I really recommend that if when you order your kit, you just get the deluxe kit with all parts and avoid the headache of paying/waiting on two shipments from England.

Where can I get some of that green filament used in the photos?

That color is MakerGeeks PETG 'Green Grass'. Yeah, the MP mini prints PETG

http://www.makergeeks.com/pefibymafi1h.html

Thanks! I am printing the part as I type

Is it normally around ~$30? It says it is on sale from $80!

I printed at 20% infill and 0.1 layer height. Is that sufficient?

Should be.

Um, did an older version get posted?  The holes on the base part don't line up with the smaller bracket part.  Currently downloading OpenSCAD to see if maybe Cura is doing something wrong.

There was an older version with messed up holes. I just downloaded the current version, and it's correct. Can I see a pic?

Hey, look at that, when I re-download today I get what looks like the right hole pattern!  Sorry for the confusion.