What could the Robo3D printing quality be according to makezine.com shootout test?

In the make 42 issue of makezine.com, the annual 3D printing guide: http://makezine.com/volume/make-42/ there is a shootout between 26 printers.

Sadly I noted that the R1 was not one of them. However,
they have published the test models in this article "what is print quality?": http://makezine.com/magazine/what-is-print-quality/
And on thingiverse: http://www.thingiverse.com/thing:533472

They measure the printer's capabilities for:

1. Dimensional Accuracy
2. Bridging Performance
3. Overhang Performance
4. Negative Space Tolerance
5. Fine Positive Features Performance
6. XY Resonance
7. Z Resonance

Since we all have different levels of mods, I'm really curious, if you have printed these models, what results did you get per material and what model/version do you have and what mods have you done?

Regards, Daniel

P.S. I will try to print them myself and if possible post my results here D.S.

 

Oh, and here is how to perform, evaluate and report the tests:
http://makezine.com/2014/11/07/how-to-evaluate-the-2015-make-3dp-test-probes/

 

Hi!
I just finished printing this benchmark. The configuration I have is a Robo3D Kickstarter with:

• Stock J-head hotend
• Stock imperial z-screws
• Upgraded Y-axis with the new bed (ROBO3D).
• Upgraded with autoleveling (ROBO3D)
• 3mm Ball bearings in the z-couplers.
  
• R1 style spool holder (found on thingiverse).
• A simple clothes pin spring belt tensioner for the X axis.
• ROBO3D Autolevel v4 firmware.

I printed these with light green Colorfabb PLA/PHA (the old formula before end of 2013 that is known to be quite stringy) at 200C and bed 70C with normal extrusion rate. I sliced them in MC 1.2.0 with matterslice.
The result according to the evaluation instruction (http://makezine.com/2014/11/07/how-to-evaluate-the-2015-make-3dp-test-probes/) is:

1. Dimensional Accuracy
   2/5 p
   
2. Bridging Performance
   1/5 p
   
3. Overhang Performance
   2/5 p
   
4. Negative Space Tolerances
   4/5 p
   
5. Fine Positive Space Features Performance
   2/5 p
   
6. Mechanical Resonance in XY
   0 (fail)
   
7. Mechanical Resonance in Z
   2 (success)

Now, my challenge to you is: Can you do better with your ROBO3D?

Regards, Daniel Hegner

 

Ok, some comments here.
in 3) the top surface of the overhangs looks great but it has some perimeter dropping from 60 degrees.
in 6) I decided it was a fail since it has ripples near the corners and at the inset. Maybe hard to see in the image.

Regards

 

Just for comparison I ran these tests on my Replicator 2x w/ ABS. Haven't had a chance on my robo:

1) Dimensional Accuracy:
1/5

2) Bridging Test
1/5

3) Overhang
1/5

4) Negative space
3/5

5) Fine position
4/5, slight step

6) XY resonance
0

7) Z resonance
2

 

Here are my X/Y resonance part results.

 

Here is a time-lapse of the Z-resonance, will take pictures of the actual part after I get home from work, but look at those ripples.

 

1st resonance Z print.

 

Definitely some resonance there. Are your Z smooth rods supported at the top with caps or anything? let's see that left smooth rod move

 

Haha, not really. That dremel tool is just waiting to go in the garbage since the locking mechanism snapped the very first time I applied pressure to it putting a tool in it (cheap-ass plastic button attached to the metal bit that actually does the locking sheared off and the whole thing spun freely with the button sitting in the indentation on the outside of the housing).

EDIT: My smooth rods are in the slots in the top of the case, but they can be wiggled if you pull on them.

What could I stuff in there to lock them in place at the top?

 

Some people use teflon tape. I printed these rod caps :
https://www.dropbox.com/s/p2qplbikfsjs1vm/rodcap.STL?dl=0

Also I meant to say let's see the left lead screw movements

 

Ok did the full tests and here are my number -not sure about no.2 but anyway assigned it a 3, to me only parameters dropped.

1) Dimensional Accuracy:
3/5

2) Bridging Test
3/5 (although might be 1 - not quite sure)

3) Overhang
3/5

4) Negative space
4/5

5) Fine position
3/5

6) XY resonance
0 (slight ribbling so fail)

7) Z resonance
2