The Joy of Practical 3d Printing AND Lasercutting!!!

So last night I decided to quickly create a under the shelf hanging spool holder for my prusa's.  I found a "L" bracket on thingiverse, by user Chuanyee223, printed 4 of these out which took about an hour and a half.  While the bracket was 3d printing, did a quick'y design in Adobe Illustrator for the lasercut wooden portion.  Threw on some cool pattern for some "flair" but just scored the pattern, should have engraved it, but then it would have taken longer than just the 10 min it took to cut out 4 of em.   Its jkust a thin piece with a hole for a 3/4in dowel to sit in that will span my entire shelf.  Here is one half of the print all assembled.

I only had some really long screws so i used them and then just hacksawed the ends off to fit nicely and then filed the burs off the edges.  I'm just using a regular dowel.  Unsure if the friction of wood on wood of the bracket,  or friction of wood on plastic of the spools, will be too much for the printers to pull the filament without causing issues. If so I could use some ptfe tubing as liner for the spool holder hole by cutting the tubing down the middle and placing into the hole, or I could just use some paste wax at the very minimum.   Of course I could 3d print a 2 part collar if needed as well. :)  That is the beauty of 3d printing and laser cutting combined, you just make what you need when you need it!

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3D Printing : Trinus3d Printer from Kickstarter Odd behaviors? - Part 2

So after a few more experiments with turning on/off smart infill, going from 300 microns back to 150 microns, and even speeding up/slowing down the print speed, I can only get that ribbed pattern to appear on the one print where I'm printing nine pillars all at once!  Weird!  The last pic above is when i printed two pillars at the same time.  I was printing all of my other experiments one pillar  at a time.

So I imagine the cause is the movement from pillar to pillar when printing is just causing some weird pattern to emerge.  I've also seen people mention those wavy patterns in thin walled  print with the fan at 100% and the force of the air causing the pattern.  

However at this time I'm done with the experiment as I have a ton of pillars, and done currently anymore!  Hehe.

I've also  started using them to actually organize my cables and pens around my desk with some magnets!

Here you can see I was trying out a different design buy using two different pla's, which i kind of like.  Truth  be know I was running out of polymakrs translucent yellow pla and just switched to their white polymax!

I used the following adhesive and magnets to "glue" the pillars together and then to add the magnets to the tops!  These are my affiliate links which helps out the blog/youtube channel, etc.  You could also use my shop link!  

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3D Printing : Trinus3d Printer from Kickstarter Odd behaviors For Certain Prints?

UPDATE: Additional findings and possible conclusions!

All sliced in their software Pango - So I have a couple of prints that I was doing I derived from http://www.thingiverse.com/thing:961176 . I printed the initial hive file (or a remix actually that just added windows to the back to snake your cable through) and with the initial print I kept getting this terrible banding along the z-axis which I thought might be z-wobble but it seems a bit too "wide" to be so, so I'm not sure exactly what this is or how to fix it or what causes it.

If you run your finger along the walls you can feel the bumps so its not just within the print. could this be a result of some kind of weird infill (which i think i had set to 20% but as you can tell the walls are thin enough where it doesn't do any infil.

I think created a completely separate file and model (just a single hex pillar and then was going just glue them together in any config I wanted) but was still seeing the banding despite not using any bit of the other file as you can see here...

then just to check to see if there is an issue with the printer I did a benchy after printing out the single hex pillar and the benchy came out practically perfect. So again i'm not sure what those bands are...

I think the only diff in settings is that the banding hive/pillar is 300 microns vs 150 microns of the benchy or whatever pangos initial slicing is...

any ideas, suggestions, or if others have seen this behavior, any info would be helpful. The hive cable storage is still very much useable and the banding doesn't really effect the projects i'm currently doing just don't want it effect the quality of project later that might rely on perfect finishes and or accuracy...

thanks in advance!

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