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Compact Prusa i3 Bowden Extruder X-Carriage

by mmemetea May 21, 2015
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What settings are you using for the duct?
I tried to print it 3 times with different settings(ABS, Ender 3, Simplify3D) but it seems to be MUCH to thin, it broke each time when I want to mount it, no way to mount a fan at it...no problem with the carrier and belt attachment.

If I could I would make the walls much thicker or do you have an alternative duct that is just for the nozzle (to use with the org. e3d fan)???

I guess the trick is really to print it oriented as it comes (45º). Try to insert manual support to just be sure the print rest attahced to the bed and you should be good to go.

Thank you...I will try this. It looks very promising in the Preview in Simplify with 45°. I am printing it right now.

How do you handle ABS? Seems not possible or?

Printing ABS with cooling(Nozzle) does not work for me and if you switch the fan off then the E3D v6 gets very very hot and destroys your mount (happend to me a year ago, but the mount was made of PLA). You could design a little plug or something like that for ABS Printing, so that all air goes to the E3d and no air to the nozzle ;)

In general, PETG is a safer bet than ABS. Less smell, easier to print and almost same resistance to higher temperature. However if you still require to print without cooling the part, you can cover the inferior section of the fan outlet with a small piece of paper. Not very graceful but very effective...

What cable chain is this most compatible with?

Great design!
Is there any way to add an 18mm proximity sensor holder to your carriage?

Do you have an idea or how to make this a dual extruder option? we have 2xmk8 now and are thinking of upgrading to 2x merlin.

Thanks in advance. If you may we are willing ti sponser your time a little :)

This is a really classy lookin x-carriage. Any possibility you could make one for the LM10uu bearings on a Wilson 2?

Sorry, not in a near future... I need to focus on making a living )

hello, can you made one for the merlin hotend (merlin is j-head compatible)

I am building a more stable version of my Prusa and I think this is almost exactly what I need. One quick question, is the fan a 4mm fan and if so will it require a larger capacity (Watts) in order to sufficiently cool both the print and the J-head? My concern is of course the heat reaching the printed parts and creating warping.
Kind regards,

Yes, this prepared for a 40 mm fan and no extra current/voltage/power required. Regular will do.
Watch out as the part is designed for an E3Dv6, not a J-Head however. No problem regarding the quantity of heat reaching the parts. There is only 2 compromises for this design choice:

  1. You can't really regulate the airflow reaching the part as the same fan is shared with the hot-end (unless stopping it with a piece of paper for ABS for example);
  2. Certain geometry with overhangs that are out of reach of the fan can suffer from the lack of proper ventilation (especially the one that are on the back of your printer;

Thank you very kindly! I am going to print the carriage and see if it is possible to modify it to fit the j-head (I should have been clearer). Have you finished the design with in-built support by any chance?

If you give me the exact model of the J-Head you're using (or the relevant dimension) I can modify it for you... If you're not afraid to get your feet wet with a fantastic free CAD tool on-line, go and modify the existing design with Onshape at the address mentioned in the description.
It doesn't make sense to send the version with the integrated support yet if the geometry isn't corrected beforehand.

Can you modify this for an e3d v5 hotend? Thanks

HI, how about the extruder part? how do you extruder the filament?

I developped an extruder of my own, soon to be available here as well. If you're impatient you can take a look at the quadrap (quadrap-3d-printer) community in google+ and look for eggstruder. It's quite an uncommon design!