1 (edited by 2n2r5 2013-08-08 02:17:03)

Topic: So you think you can Print - a-MAZE-'n

First ever installment of the 2n2r5 print challenge.

About the stl:
Filename: Maze.stl

This is a small (~48mm x ~48mm) maze that I threw together quickly. It features .42 mm walls and a bunch of freestanding edges.

~15 minute print on default Solidoodle speeds

What are the challenges?:

Single Walls - Single walled prints require a smooth consistent layers. The walls can easily "collapse" if layers they don't line up properly. Also, corners can give you fits.

Freestanding Ends - These will try to make your print lift off the bed as the plastic cools and contracts toward the side without the wall. 

Non-contiguous Lines - This means you will have lots of starts which could mean lots of stringing for those of you still trying to dial in your retract length and temps.

What to do to give yourself the best chance for success:

  • Take it slow, this print needs precise movements. Overshoot will cause this print to come out looking less than perfect.

  • Calibrate your flowrate. This is the most important thing IMHO. If your print widths are off, they will show here.

  • Turn your temps down. You don't need to run at 210C just because you can. When you turn your temps down, you tend to get less strings or blobs. The temps all depend on the filament you are using so experiment a little. Try adjusting the extruder temperature up and down 2-3C at a time to see where you filament is happiest.

  • Let the bed get warm. This will test even the best beds for corner lifting. I am ashamed to say that my corner lifted a bit on my first attempt at this print.

  • Retraction... A little goes a long way. .5mm to 1mm should be all you need here. Too much and you will have holes in your walls. Too little and you will be string and blobbing all over the place.

The rest is up to you to figure out.
http://2n2r5.com/pictures/printer/show-n-tell/maze_test.jpg

EXTRA CREDIT: Bump up those speeds and post your fastest time along with a picture of the corresponding print.

Did I miss something? Post a reply and I will add the info to this post.

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SD3 w/ mods:
Glass bed with QU-BD heat pad upgrade, threadless ballscrew w/ 8mm smooth rod, spectra line belt replacement, lawsy MK5 extruder, Lawsy replacement carriage, E3D hotend, Ramps 1.4 w/ reprap discount controller, DRV8825 drivers, 12v 30A PS, Acrylic case, Overkill Y-idlers, Filament alarm, Extruder fan + more.

2

Re: So you think you can Print - a-MAZE-'n

sheesh, I don't think I'll be able to print anything nearly as good as that. I'll give this a go when I get off work.

Still trying to dial in my retraction. I switched to lawsy's mk5 from stock and it seems to be oozing a lot more than it used to... wondering if it has to do with my tension arm

3

Re: So you think you can Print - a-MAZE-'n

rsheldiii wrote:

sheesh, I don't think I'll be able to print anything nearly as good as that. I'll give this a go when I get off work.

Still trying to dial in my retraction. I switched to lawsy's mk5 from stock and it seems to be oozing a lot more than it used to... wondering if it has to do with my tension arm

The reason I am starting the print challenge is to help people get their printers dialed in. There will be certain things that won't print well unless you have certain mods. Hopefully, this and future challenges will help people learn to overcome the limitations of their machines.

I need STLs!

I need, preferably, original designs that offer unique printing challenges. It would be nice if they only had one or 2 things that made them tricky to print. This will help people dial in specific settings. I already have my next design in mind and am working on it now. I would also love some feedback on frequency of challenges, what types of designs people would like to see, how big the prints should be and so on...

I was trying to keep print times around 15 minutes but that will not work for most prints. All feedback is welcomed. smile

SD3 w/ mods:
Glass bed with QU-BD heat pad upgrade, threadless ballscrew w/ 8mm smooth rod, spectra line belt replacement, lawsy MK5 extruder, Lawsy replacement carriage, E3D hotend, Ramps 1.4 w/ reprap discount controller, DRV8825 drivers, 12v 30A PS, Acrylic case, Overkill Y-idlers, Filament alarm, Extruder fan + more.

4 (edited by 2n2r5 2013-08-10 05:55:25)

Re: So you think you can Print - a-MAZE-'n

Here is my posted time to beat. Elmore? NLancaster? who's up for a challenge?


http://2n2r5.com/pictures/printer/show-n-tell/speed_maze.jpg


Last two lines from RH
01:19:34.719 : Printing Time:8m:36s
01:19:34.719 : Lines Send:6195

SD3 w/ mods:
Glass bed with QU-BD heat pad upgrade, threadless ballscrew w/ 8mm smooth rod, spectra line belt replacement, lawsy MK5 extruder, Lawsy replacement carriage, E3D hotend, Ramps 1.4 w/ reprap discount controller, DRV8825 drivers, 12v 30A PS, Acrylic case, Overkill Y-idlers, Filament alarm, Extruder fan + more.

5

Re: So you think you can Print - a-MAZE-'n

Need to tweak my settings.  this was at a indicated max of 150mm/sec.

22:47:05.640 : Printjob finished at 8/9/2013 10:47 PM
22:47:05.640 : Printing Time:9m:28s

http://www.pdxmc.com/uploads/SD3/maze.jpg

6

Re: So you think you can Print - a-MAZE-'n

nlancaster wrote:

Need to tweak my settings.  this was at a indicated max of 150mm/sec.

22:47:05.640 : Printjob finished at 8/9/2013 10:47 PM
22:47:05.640 : Printing Time:9m:28s

http://www.pdxmc.com/uploads/SD3/maze.jpg

Looks Great! sick print.

SD3 w/ mods:
Glass bed with QU-BD heat pad upgrade, threadless ballscrew w/ 8mm smooth rod, spectra line belt replacement, lawsy MK5 extruder, Lawsy replacement carriage, E3D hotend, Ramps 1.4 w/ reprap discount controller, DRV8825 drivers, 12v 30A PS, Acrylic case, Overkill Y-idlers, Filament alarm, Extruder fan + more.

7

Re: So you think you can Print - a-MAZE-'n

Now we just have to figure a way to keep the bugs inside so they go thru the maze big_smile

I edit my posts a lot.

8

Re: So you think you can Print - a-MAZE-'n

frozensoda wrote:

Now we just have to figure a way to keep the bugs inside so they go thru the maze big_smile

try little girl bugs with little bug stripper poles!

9

Re: So you think you can Print - a-MAZE-'n

so what is the regular print speed that you guys usually use?

10

Re: So you think you can Print - a-MAZE-'n

innovate wrote:

so what is the regular print speed that you guys usually use?

150mm/s. that's not really "normal" though. I'd say most people use 60mm/s.

11

Re: So you think you can Print - a-MAZE-'n

yea thats what i was thinking elmoret ahahah

how do you guys get those good prints at those speeds?

here is mine at 50 mms per sec ahahah

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12

Re: So you think you can Print - a-MAZE-'n

elmoret and I have been pushing our printers hard. I regularly print at 100mm/sec for best results on my printer.  I have just completed a new Linear bearing mod, and have yet to push it. I have tried the above print and a few others and been happy with the results except corners and starts.  Need to get a cooling fan installed to help with that.

13

Re: So you think you can Print - a-MAZE-'n

I gave this a shot, and it turned out quite nicely I think, but this sort of print isn't what is really challenging my printer.

It did lift a little, but I'm hoping to see the end of that problem when my glass arrives.

http://www.moderndystopia.net/image-share/2013-08-11-22.59.50.jpg

As always I am interested what other people may notice about the print.

This was printed using the 'default' Solidoodle .1mm profile, at 150% feedrate, 125% flowrate.

http://www.moderndystopia.net/image-share/2013-08-11-22.58.50.jpg

14

Re: So you think you can Print - a-MAZE-'n

nlancaster wrote:

elmoret and I have been pushing our printers hard. I regularly print at 100mm/sec for best results on my printer.  I have just completed a new Linear bearing mod, and have yet to push it. I have tried the above print and a few others and been happy with the results except corners and starts.  Need to get a cooling fan installed to help with that.

Hey Nlancaster if you don't mind sharing what mods have you done to your solidoodle to achieve prints at speed rate?

15

Re: So you think you can Print - a-MAZE-'n

dont try this with moist filament it only ends in heartbreak

16

Re: So you think you can Print - a-MAZE-'n

here is my attempt with abs clear and non moist

had to back my retraction off to 0.5mm kept getting holes on the starts

http://s12.postimg.org/jef6bhfi1/20130813_212441.jpg

17

Re: So you think you can Print - a-MAZE-'n

I had to crank my speeds to 100mm/sec and layer height of .35mm just to get the ETA down to ~ 15min. What am I doing wrong here?

http://i.imgur.com/cm8nwKW.jpg

E3D-v4 Hotend, MK5 carriage with round plastic wire conduit , 3/16" tempered glass,  Well nut, SureStepr SD8825 1/32 Extruder Driver, PowerEdge 2650 500W PS, QU-BD heated bed, circuit board fan, hinged plexiglass enclosure with plastic tray top. Other than that mostly stock SD3

18

Re: So you think you can Print - a-MAZE-'n

Krythis wrote:

I had to crank my speeds to 100mm/sec and layer height of .35mm just to get the ETA down to ~ 15min. What am I doing wrong here?

http://i.imgur.com/cm8nwKW.jpg


When you go to print are you actually using the "Speed Maze" setting to slice?

SD3 w/ mods:
Glass bed with QU-BD heat pad upgrade, threadless ballscrew w/ 8mm smooth rod, spectra line belt replacement, lawsy MK5 extruder, Lawsy replacement carriage, E3D hotend, Ramps 1.4 w/ reprap discount controller, DRV8825 drivers, 12v 30A PS, Acrylic case, Overkill Y-idlers, Filament alarm, Extruder fan + more.

19

Re: So you think you can Print - a-MAZE-'n

Damon550 wrote:

here is my attempt with abs clear and non moist

had to back my retraction off to 0.5mm kept getting holes on the starts

http://s12.postimg.org/jef6bhfi1/20130813_212441.jpg

Save that clear abs. you will need it for the next SYTYCP challenge. Nice print!

SD3 w/ mods:
Glass bed with QU-BD heat pad upgrade, threadless ballscrew w/ 8mm smooth rod, spectra line belt replacement, lawsy MK5 extruder, Lawsy replacement carriage, E3D hotend, Ramps 1.4 w/ reprap discount controller, DRV8825 drivers, 12v 30A PS, Acrylic case, Overkill Y-idlers, Filament alarm, Extruder fan + more.

20

Re: So you think you can Print - a-MAZE-'n

Gomisan wrote:

I gave this a shot, and it turned out quite nicely I think, but this sort of print isn't what is really challenging my printer.

It did lift a little, but I'm hoping to see the end of that problem when my glass arrives.

http://www.moderndystopia.net/image-share/2013-08-11-22.59.50.jpg

As always I am interested what other people may notice about the print.

This was printed using the 'default' Solidoodle .1mm profile, at 150% feedrate, 125% flowrate.

http://www.moderndystopia.net/image-share/2013-08-11-22.58.50.jpg

+1 Your machine is calibrated nice.

SD3 w/ mods:
Glass bed with QU-BD heat pad upgrade, threadless ballscrew w/ 8mm smooth rod, spectra line belt replacement, lawsy MK5 extruder, Lawsy replacement carriage, E3D hotend, Ramps 1.4 w/ reprap discount controller, DRV8825 drivers, 12v 30A PS, Acrylic case, Overkill Y-idlers, Filament alarm, Extruder fan + more.

21 (edited by Krythis 2013-08-14 00:31:22)

Re: So you think you can Print - a-MAZE-'n

2n2r5 wrote:

When you go to print are you actually using the "Speed Maze" setting to slice?

Yes, this is a separate profile I created just to see what it would take to get to the 15 minute 'default' settings mark. The normal profile I use, which has slightly increased speeds, is reporting 21.5m using a .3mm layer height.

Edit: 21m included 4 solid base layers. Came out well, though there is some slight stringing and a thin hole lined up with one of the walls in the inner maze.

http://i.imgur.com/aUAtGYy.jpg

E3D-v4 Hotend, MK5 carriage with round plastic wire conduit , 3/16" tempered glass,  Well nut, SureStepr SD8825 1/32 Extruder Driver, PowerEdge 2650 500W PS, QU-BD heated bed, circuit board fan, hinged plexiglass enclosure with plastic tray top. Other than that mostly stock SD3

22

Re: So you think you can Print - a-MAZE-'n

This was my first successful decent print. I think my print settings are correct.  Is it right to use that 100 speed for other prints?  Most of the ones I've printed takes hours.   I can't seem to add a pic here. any suggestions?

23

Re: So you think you can Print - a-MAZE-'n

Here is my part, with an unofficial time of something south of, say, 9 minutes?

A bit of a disclaimer on my "time" stamps. By the time I realized my computer's time was not shown in my real start photo (5:50pm) I was on layer 4. I retook another photo, and that's why it shows a time of 5:51pm. As it stands, my 5:50pm start time can only be called "unofficial". The end time, however, was official at 5:58pm (I have no idea how many seconds, so this is all a bit silly anyway).

So, to be fair, 2n2r5's time still stands as the winner, easily. But I was close, damn close...

That was fun, thanks 2n2r5.

BTW, my perimeter speed setting in Slic3r was 100mm/sec, and I cranked the multiplier up to 300 after about 10 seconds of print time. Never once did the printer reach anywhere near these speeds, you know that, right?

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24

Re: So you think you can Print - a-MAZE-'n

It should also be noted that I printed a 5mm brim....which I didn't need to do....but I did....