I've been using the Proton now for about a month and gotten somewhere around a dozen prints under my belt. Would have done more buy I'm learning Fusion 360 as I go and so making the computer models is going pretty slowly.
That said, there are a couple of things that I've found and will be interested in hearing feedback on:
I am now setting all of my models at an angle and using supports. The few prints I've tried that were flat to the plate had a marked tendency to pull off the build plate or separate and muck up on the FEP.
I am using fewer supports than I did at first but spreading them out so that the models don't "wobble" when they pull off the FEP.
I never disturb the machine while it's printing. In my experience, (your mileage may vary!), pressing the "Pause" or even opening the front cover will result in visible layer offset or surface waves. When I just let it print, this doesn't happen.
I've gotten one "flaky" .STL file out of Fusion so far. When you are looking at your file in the slicer and see strange objects or sliced edges that should be smooth when you look at them in cross-sections are not smooth. Dump it and try another .STL generation. If that doesn't work, look carefully at your computer model and clean up anything questionable.
I know that all of you experienced folks out there will probably think this is pretty basic but I would be interested in hearing any opinions that are different than mine or reinforcement of similar experiences.
I'm also including a couple of pictures of the front & rear tire/wheel assemblies for the Chaparral 2H that I'm building. Again, comments are appreciated.
Happy Printing to All! MK
翻譯年糕
Vedran Kalamiza
2020-03-18 01:21:20
You can use Meshmixer to check and repair your STL files.
Jason Gill
2020-03-18 01:37:48
Merv Hinton
2020-03-18 01:37:53
All experiences welcomed,much appreciated.. Supports need to be all around the extremities,to force printing of the edges..especially corners.. have found a marked benefit by orienting off the bed...30 degrees off horizontal and maybe 10 degrees sidewa
ys tip..on none round objects..obviously
:)
and lift speed..the vacuum effect off the FEP..another potential problem area often overlooked...
https://www.chitubox.com/article_howto_17839_3_38.html
Ryan Jones
2020-03-18 01:49:27
Mike
Kendel are your wheel assemblies 1 or 2 pieces (tires separate from rims)? I’ve found for my two piece wheel models, I get more uniform and precise roundness by orienting the parts parallel to the build plate. I need +/- .004” for a good mate between the two pieces. What scale are yours? They look great!
Grant Weaver
2020-03-18 01:51:56
Ryan Jones
I do the flat orientation with wheels and tires as well.
Jeremy Babcock
2020-03-18 02:23:18
Mike Kendel
2020-03-18 03:23:56
The current designs are combined wheel/tire, (1 piece). I had some issues with the wheel print rims separating from the wheel body when I printed them flat. I've noticed some issues with distortion in the tire bodies when they are "hot off the press"
but they seem to normalize after cleaning, (I use warm water and an ultrasonic bath for up to 10 minutes). I checked a couple of the wheel prints, (hadn't modelled the tires yet), an found them to be round to within roughly =/- 0.005 inch and the dimensional accuracy to be about the same. Lastly, all of the parts that I'm making now are for a 1/12 scale Chaparral 2H Can-Am car.
Arri Merenda
2020-03-18 06:29:44
I used to printed the wheel too, but never get perfectly rounded when angled it, so I back to flat with the plate, with support
?
Mike Kendel
2020-03-19 00:25:00
Thank you Jason! The Fusion 360 software I am using for the designs has no capability to put text on a non-flat surface, so the lettering may be a little to high at the edges but I plan to sand it just a bit so it follows the tire sidewalls better before painting them.
Jason Gill
2020-03-19 05:21:36
Rodney Houlford
2020-03-19 10:59:42
Thanks Mike, some great tips, wheels look great
Steve Purita
2020-03-19 12:29:10
Thanks for sharing - no matter how basic someone will find it useful. cheers
