Quick-Fit X carriage and Extruder - LM8UU
Description
It has compatible bar spacing for Mendel, Prusa and MendelMax
*Update* 21st - March - Added Greg/Wade extruder adapter plate and all the Sketchup files so you can make whatever adapter plates etc. you may need.
*Added* 31st March - Belt clamp and Low profile catch together - as requested.
Instructions
The Linear bearings slide in and secure with a zip tie
It has a belt adjuster on one side of the belt clamps - see photos
The Extruder is based on Greg's excellent design, with a few mods and the extensions allow it to fit on the Quick-Fit X Carriage.
You need two x M4 (13mm) 624 bearings for the Quick-Fit Lever.
It also has a fan mount on one side.
It's designed to be expandable (easily made wider) by adding spacers between the two halves - without taking off the printer. - just in-case you ever need more room to fit triple extruders !
Check out my Blog post for further details -
richrap.blogspot.co.uk/2012/03/mendelmax-quick-fit-x-and-quick-fit.html
A Video of it in operation can be seen here - youtu.be/ffICsLWzn2o
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Hello Rich,
On some of the threads I follow on the reprap forum you had mentioned that you wanted to try the metal magma hotend. Did you happen to get one? If so do you have any tips on mounting it to the quick fix? Did you use the aluminum mount?
Thank you,
Cameron
Hi Cameron,
No, not got hold of one yet, I did see they were now available from reprapdiscount, so one way I'll get one to try out.
I hope the metal plate fits between the quick-fit hole, but for the PRUSA nozzle I did make a modified extruder base to sit the metal plate into, that worked really well.
Cheers,
Rich.
I had trouble printing the small supports also as they are only 1mm wide. I used my default extrusion width of .69 and when viewing the Gcode it only output 1 line at the supports. Going down to .490 yielded 2 lines at the supports. .500 still left one area with 1 line not sure if this was a Slic3r issue. I may reprint and see how they look.
Having difficulty printing the narrow supports next to the screw holes that join the two x-carriage pieces together. Tried altering the design but neither blender nor openscad will open the stl files (openscad complains about the wrong winding order).
I dont suppose you would be willing to create a version that will work with the self aligning bronze bushings.
I believe they are 16mm OD with a bit of a flange. I'll get exact measurements if you are willing and need them.
Thanks in advance and hoping to switch over to your carriage without having to disassemble my well tuned mendelmax!
Hi,
Just wondering what X ends you would recommend. I've got some adapted Prusa ones, but with the motor mounted on the outside, the belt cog is well out of alignment with the x carriage belt clamps. From the pictures on your site it look like your motor is mounted so it is inbetween the rails, but I can't find one that is similar.
Many thanks,
Darren.
This looks like exactly the part I want but i cannot see how it works with a J-head like mine, mounted on an aluminium plate.
Will this setup work without issue? Im guessing the plate would push up the extruder too much to fit under the latch?
I saw that you mount your j-head differently but I couldnt find these m12 rail mounts particularly easily, nor am I able to drill a 16mm hole that I'm aware ...
My j-head looks l
ike this for reference
Well you don;t need to use the Aluminium plate with a Jhead, the grove mount can fit into the extruder body - just take a look at this derivative - http://www.thingiverse.com/thi...
You may have some issues, but I'm sure they are not all that hard to overcome.
You should be able to drop it in the hole and slide in under the grip then angle it down for the latch, you can fit quite long hot-ends in this X carriage.
Let us know how you get on.
Rich
Is this meant to be used with the wooden plate that holds the makergear groovemount hotend? Seems like the basic design would work but would need a taller derivative?
Just Printed one for self centering brass bushings for my new machine. If it works out ok I will post it as a derivative.
Make sure you check out the Awesome LM10UU version by akhlut - http://www.thingiverse.com/thi...
:)
Thanks for your great work! I would really love to have a quick fit extruder running here but unfortunately i'm not running LM8UU anymore but the much better IGUS RJMP01-08 gliders. They're a bit wider and i don't see a chance to easily modify the sketchup files to make the bearing holes a bit wider - do you?
Hi, I found some STL parts for IGUS bushings directly on the IGUS website, and as they were ... a bit larger, I designed printable IGUS Bushings to replace my LM8UU and LM10UU, And they yet working very well on my Y carriage !!! they are really less noisy than my "poor" LM8UU ...
I'm going to Upload LM6UU, LM8UU
&
amp; LM10UU printable linear bushing, calibrated to be printed as well with a 0.5mm nozzle !!!
And I think RJMP01 are the "old" version cause Igus designed new RJMP revision 2, to fit exactly LMxUU bearings, I think to match industry and to allow "easy" switch between IGUS and Standard Bearings.
Not all that easily, I was crossing fingers that someone would have made a parametric version by now...;) so I didn't have to make another one for 10/12mm rods- :)
where are the little "rams" for belt tightening? I plan to actually start using this soon, and realised I don't have any
Hi James, the little 'rams' are actually a bit of polymorph with a M3 nut in them :-D
I was going to design a nice little belt pusher with captive nut, but didn't find time, then I built one up and just used some polymorph and it worked so well I didn't change it.
I'm sure Nophead has a similar system on the Mendel90, and I was going to 'borrow' his belt pusher next time I built o
ne up.
I've modified this (with my dremel) to work with the budaschnozzle, now to learn sketchup so I can get a model up!
Hi !!! I adopted your carriage + gregs extruder and herringbone gears for my first reprap and still impressed !!! nice work.
I'm actually working on a "GIANT" MendelMax, and I don't want to use a regular X-Carriage, I wanted to know if it's possible, to create a version for both LM10UU and LM12UU (LM12 just in case) cause i'll probably use 10mm smooth rodes for my MendelMax, (45x45x34cm build area)
Hope you can deal with it !! It would be awefull !!!
Thank you ;)
I echo that sentiment...an LM10UU version would be delicious... I'd modify the sketchup files myself, but I'm terrible with CAD in general.
Up, for those interested in, here is my BOM (mostly french providers/european)
For a cost around 600⬠;)
Very nice!
But of course I want more :) I am thinking if the extruder was rotated 90 deg, then two or more extruders could be mounted side by side... I guess that might be difficult to cater for.
this is very cool, i've replaced the x-carriage on my second prusa2 with this, I have everything apart from the extruder. I'll add your mounting options to the gregstruder in openscad and add as a derivative if that's useful for anyone. I'll also be adding a pen holder for this mount. Thanks :)
Wow, this quick change extruder mount is epic :) I MIT print a little one and mod up my Huxley ;) Might I recommend any "universal adapter plates" be tagged as a derivative of this object. The idea of quick mounts/releases and universal connections shows that this project is getting somewhere ;) You rock Rich!
Is there any way you can make an adapter to mount between the extruder of a person choice and this quick release? This items quick release allows use of any extruder you want http://www.thingiverse.com/thi... , looks like yours would also if you made a bottom interface to go between any extruder and the tie down.
Hello,
Yes, I did a Greg / wade adapter plate (pic on my blog) I'll upload the adapter and also some other templates so people can make their own plates. I have not needed to test the adapter plate, but it's the correct dimensions.
I have a dual extruder plate in the works, one of my main aims with this X carriage was not needing extra plates but modify the extruder models to directly to fit the carriage.
http://1.bp.blogspot.com/-Js-a...
I'm really just happy if someone else finds it useful.
And Thanks for the link, I didn't spot that one, looks nice.
Having completed my second Ronthomp Mendel printer, I had occasion to swap extruders, a Wades and a Greg Frost. What a pain! This looks like just the ticket. Thanks!
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