Prusa Pro

Started building my second printer this week, it's a blend of the rock steady Prusa with Mendel Pro rod lengths and some other improved parts from thingiverse and some I have designed. I printed out all the parts on my original Mendel Prusa in stunning yellow and have so far got the basic frame together and squared up.

I am also using the x-carriage, x-motor and idler designed by Jonaskuehling and my one-piece y-carriage. This is my version of the adjustable y-axis motor mount for easy belt tensioning.

---

_________________________________________________________________________________________

Richmond, New Zealand
Thingiverse ~ YouTube

Threaded rod lengths are as follows:
End frame triangles: 370mm x 6
Top cross members: 470mm x 2
Z-stabiliser: 380mm x 1
Lower cross members: 330mm x 4
Plus the lead screws not cut yet - I have bought some stainless threaded rod for these in the hope it is straighter than the zinc plated steel ones.

Smooth rods:
Y-axis: 400mm x 2
X-axis: 430mm x 2
Z-axis: 350mm x 2

7

Edited 1 time(s). Last edit at 09/02/2012 04:03AM by Wired1.

---

_________________________________________________________________________________________

Richmond, New Zealand
Thingiverse ~ YouTube

Got it all together today, just waiting for a few remaining parts to arrive now.

---

_________________________________________________________________________________________

Richmond, New Zealand
Thingiverse ~ YouTube

Looks very good

---

__________________________________________________________________________
Experimenting in 3D in New Zealand

Thanks gary, it's a bit experimental but it is getting there. I am onto my third one-piece y-carriage design now and this one works nicely. It does take five hours to print and took over 6m of PLA but once it is printed it does away with most of the bits and pieces between the heater and the rails. Got my thumb height adjusters in and working too so tweaking it should be easier than my current printer.



The y-axis build area is a little over 220mm.

Edited 1 time(s). Last edit at 09/05/2012 05:25AM by Wired1.

---

_________________________________________________________________________________________

Richmond, New Zealand
Thingiverse ~ YouTube

This weekend I rebuilt my x-carriage, I wanted front and rear fan mounts and all the ones out there are on the sides which limits x-axis travel so I bit the bullet and redesigned it to what I want. [www.thingiverse.com]



I also cut the glass to size. I have ordered the final few parts like belts and another Printrboard so in the mean time I'll do some more work on the next project. You can also see my original Prusa printing out more parts for the MendelMax in the background .

---

_________________________________________________________________________________________

Richmond, New Zealand
Thingiverse ~ YouTube

Finished the wiring yesterday so now I'm only waiting for another drive belt. I overlooked the fact that now that my machine is oversize a standard belt is too short

---

_________________________________________________________________________________________

Richmond, New Zealand
Thingiverse ~ YouTube

Very cool
I'm still constantly tweaking my old Sells Mendel

Wow thats one tidy looking Prusa. Nice job on that wiring, very clean.

Grogyan Wrote:
-------------------------------------------------------
> Very cool
> I'm still constantly tweaking my old Sells Mendel

I'm trying to covert my sells from Gen6 to sanguino with SD printing as I can't do any prints not without a Y axis shift which is damn annoying

---

__________________________________________________________________________
Experimenting in 3D in New Zealand

There are some really good mods here. I want to have a go at building a dual print head machine so that I can print PVA support. I'd like to use your design. Could you supply links to the various places in thingiverse?

The main rigidity weakness with the Prusa design is the lack of stability in the frame when the print head is moving in the X direction. To counter this, I'm planning on mounting my new Prusa on a large ceramic (floor) tile and cutting up an other to provide rigid side braces to secure the frame in the Z axis.

My other concern is in supporting the weight of a dual headed extruder (complete with two steppers and J Heads) and I'd like to upgrade my X axis to use 10 or 12 mm rods. Are your designs parametric? Could I have the original files to allow me to modify them to take the larger rods?

---

Using ABSPrusa Mendel Zaphod with Pronterface and slic3r 1.3.0. Printing well with 3mm PLA and ABS through 2 x J Head Mk IV b and Wade Geared Exruders. Controlled using RAMPS1.4 board running Marlin_v1.1.9

Yes I am looking at dual heads or more at the moment too. I prefer the heated bed to the PVA method and want the extra colour capability.

All the parts I have designed are here on Thingiverse: [www.thingiverse.com]
includes my y-carriage, x-carriage, y-motor mount and various other fan holders, limit switch holders etc.
plus I used Jonas Kuehling's x-ends here: [www.thingiverse.com]

Unfortunately none of my parts are parametric so unless you are doing 8mm you will need to search for others. I am now building a Mendel Max 1.5 and using x-ends from here: [www.thingiverse.com] which seems to have most of the popular combinations.

Edited 1 time(s). Last edit at 09/20/2012 04:22AM by Wired1.

---

_________________________________________________________________________________________

Richmond, New Zealand
Thingiverse ~ YouTube

Got my Printrboard SD card working this morning. Pronterface doesn't have many SD commands so I'll have to add some.

---

_________________________________________________________________________________________

Richmond, New Zealand
Thingiverse ~ YouTube

Quick video printing out a new vertex on this printer here:

---

_________________________________________________________________________________________

Richmond, New Zealand
Thingiverse ~ YouTube