Mendelmax 2.0 - 3D printed ball cap, letting slicer generate support.

Tried something new today. Let Slicer generate its own support material just to see how it would work. A student wanted to try making a hat, and I thought that was a good idea so here is my version. Pretty thin shell, printed in PLA. Really need to get back to ABS.

Took about 6 1/2 hrs to print, and without the support it probably would have taken 4.



First part bridged with the support material.





Taller,



and taller,



aaannnddddd TALLER,





Done.



Print came out pretty decent. Still trying to get a few more things dialed in but I'm happy with the quality.







The support material was a PAIN to get out. Still have some cleanup to do too.



Ended up cracking the shell in a couple of different spots trying to get it all out.



But hey, IT FITS!!!



Now to make a brim. This one's a bit small but I figure once I get everything figured out I can scale it up or down in Sketchup!

On a side note, as you can tell the hair is getting just a *tad* long...  The day I shaved after being in the play I was informed by my students SEVENTY TWO TIMES that I had, in fact, shaved.  Going to put the haircut off a few more weeks so's I don't have to endure that again!

Mendelmax 2.0 / Enable Raptor Hand #2

More parts on the raptor hand build. 


Finger bits.



Not assembled correctly but you get the idea...






Rest of the parts done. The tensioner block is on backwards but you get the idea.







Starting to run the strings.



Running the elastic.



Tensioner block.



Looks pretty messy...



But cleaned up nice!









Still working out the kinks but it seems to function pretty darn well.  I'm guessing I have about 2 hours of time into the build, and that includes getting the printer set up and clearing the parts.  I did it 3 prints of about 4 hours each (with some extra parts).  I think with some practice I could crank one of these out a day if I got the printer started in the morning and did all of the parts in a single batch.  A larger nozzle would sure help speed up print time.  Guess I know what to put on my wish list!

Mendelmax 2.0 / enable Raptor Hand

Playing around again. Downloaded the Raptor hand from Thingiverse. Got most of the parts printed. I *really* need to get a .5 nozzle, it's taking forever. I think I'll have about 13 hours of print time into all the parts by the time I'm done, but I did make a couple of extra fingers and they are definitely NOT an "easy" print.

I tried doing the entire thing in one set but I had some bed adhesion issues. It was going to take waaayyy too long anyways. The first piece I printed was the palm.



Came out pretty nice. I'm still getting some warping on overhangs but everything else seems decent enough. Still not sure why I'm printing at 174 deg. C though (PLA). Pulled my extruder apart to check the thermistor but nothing seems out of place.

Few more pics of the palm.





Worst of the warping.  Maybe Mr. Flood can chime in and give me some more ideas of what to try here?



I thought this was pretty impressive though. Haven't done much with anything that has a serious overhang but it turned out nice.



And the gauntlet. Notice the two slots where it bridged. A little bit of goo but really it cleaned up nice.







Sure is a teeeeeny little hand. Makes me kinda sad- Don't know what I'd do if I lost the use of one of mine (knock on wood)...

Mendelmax 2.0. Still Chuggin' Away!

Ran several batches of student projects the last couple of weeks...








Decided it was time to figure out why my prints seem to have pretty poor quality. Found a neat little calibration widget to try different settings on, and proceeded to try a BUNCH of different things out...





First and last. I'm almost positive I have a thermistor that is acting wonky on the hot end- supposedly I'm printing PLA at 174 deg. C.



I still think there is room for improvement on the quality of the print, but I'm pretty happy with the results. This is a replacement cone for the cooling fan in the background.



Going to attempt printing an e-nable hand, sort of for fun but maybe for someone that might want to give it a try. We'll see how it turns out!

Student Projects.

Lots going on in the dorkpunch garage lately, both mine at home and the school shop.  Students have been working on all kinds of things.  Been fighting the 3D printer lately but it seems (knock on wood) that I have it figured out.  Had some issues with a sticky z-axis and loosing steps in the y-axis.  The y-axis thing as been going on since nearly the time I built the printer- I had it narrowed it down to a bad control board but thought I would try a few more tests on the y-axis stepper driver.  Tried lowering the voltage- that seemed to work great for about 3 days.  Adjusted and tested it at several different voltages and it seems to be working very well at a slightly higher voltage than its supposed to be at.  Suppose that means it's going to melt here any day now...

Anyways, here's a couple of recent prints with several more to follow.  A headphone stand, and a piston / connecting rod.


Our school has been doing a "FLEX" program- kind of a recess on steroids where the kids that need help can go see their teachers or go do something fun if they are all caught up.  I've had several kids coming in to weld and do lots of other things like these custom Hot Wheels.



The silver one is just a paint and wheel swap- but it's a replica of one of the cars in a Fast and Furious movie.  The other one had the roof chopped off and a new paint job.  Didn't quite get the tape stuck down for the stripes, but not too bad!

Have another kid working on a new body for his R/C truck-


And then there's the welders...



They're getting better.  Have some really good welders- for sure all of them are WAY better than I was at that age. 

On another note, January is almost over.  Time to shave the beard and get ready to drag the bikes out- as long as we don't have the nasty fog / black ice covered roads we had today...