Reddit reviews JIUWU Pneumatic Air Straight Fitting 4mm Thread M6 One Touch Hose Connector Pack of 10

I had this happen to me too and these worked out beautifully. https://www.amazon.com/gp/aw/d/B00WE1A3D2/ref=gp_aw_ybh_a_46?ie=UTF8&psc=1&refRID=KZ034DRXZ93250TN11CA comes in a ten pack too which is great

A few things typically break shortly after you start using one of these.. the biggest pain, and it's not even a printed part, is rewiring the bed so they don't rub on the hole going into the base.


Printed parts, I print an extra extruder arm and baseplate (part on top of the tower that feeds filament. This breaks second. I'll find the file I like to use, it's hard to find on thingiverse for some reason. WK7 has one, but it's not as tight and gives space for flexible filament to bend. Further you'll need, at least one https://www.amazon.com/gp/product/B00WE1A3D2/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 and send me a self addressed stamped envelope and 1 dollar and i'll send you one. IM for an address.


Height spacer for when you get fed up with a warped print bed and move to glass.


There are a few options for each one, if you want links I can provide you the ones I like. It's sometimes funner to see what's available and play with the options yourself.

If it won't lock in again then replace it. Someone on here suggested these to me: JIUWU Pneumatic Air Straight Fitting 4mm thread M6 One touch hose Connector Pack of 10 https://www.amazon.com/dp/B00WE1A3D2

They work and don't require any new printed parts, and prime shipping means they show up fast.

Wiki is: http://mpselectmini.com/

Some items I bought from Amazon (don't buy the hot end pieces if you have a V2. They changed the hot end to an all metal one):

https://www.amazon.com/gp/product/B00WE1A3D2/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B00T2DNKJY/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
https://smile.amazon.com/gp/product/B01LAYCRAA/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1
https://smile.amazon.com/gp/product/B00L4UXQ42/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1
V
https://smile.amazon.com/gp/product/B00MQKW230/ref=oh_aui_detailpage_o09_s01?ie=UTF8&psc=1
https://smile.amazon.com/gp/product/B01A81FXMK/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1
https://smile.amazon.com/gp/product/B01ACIFPYA/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

The blue-topped connector is a fitting that connects to a lock-washer-looking piece of garbage that sits just inside the extruder case. If you unscrew the top of the extruder case, you should see that the lock-washer-thing has shattered, which means the connector can't keep the tube held in place. On another extruder, you'd be able to swap out this shit plastic fastener with something like this: https://www.amazon.com/gp/product/B00WE1A3D2/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
But this won't work with the stock extruder casing because there's no threading to screw it into. If you were able to drill your own threading or swap out the plastic bit that broke, you'd be all set. Otherwise, you need a new extruder case and you might as well swap out all the parts with cheap metal versions that won't break down.

I bought 10 for ~$7 on amazon JIUWU Pneumatic Air Straight Fitting 4mm thread M6 One touch hose Connector Pack of 10 https://www.amazon.com/dp/B00WE1A3D2/ref=cm_sw_r_cp_apip_Ex8VNlMxPNHxG

JIUWU Pneumatic Air Straight Fitting 4mm thread M6 One touch hose Connector Pack of 10 https://www.amazon.com/dp/B00WE1A3D2/ref=cm_sw_r_cp_apa_i_gBlACbGT9J0X4

That would work, you'll just have to be careful that you've still got enough length on the tube that you don't choke up the filament path when the X axis is all the way out.

Here's a link for replacement fittings.
https://www.amazon.com/gp/product/B00WE1A3D2

This is for extra PFTE tubing
https://www.amazon.com/Meters-Filament-3D-printer-Rostock/dp/B00THZKC8Y

i think most revisions use an M6 coupler

useful to keep around, I used some to make dryboxes.