Tuesday, February 25, 2020

A Pyrrhic 3d Print? My first Heavy Gear attempt

As mentioned in the last post, I attempted to accentuate the details on the model that weren't likely to print successfully like rivets and thin armor plates.  When zoomed in, the 3d models look pretty good!

These were an absolute pain to support properly but eventually after a few hours I was ready to print despite multiple crashes of the slicing program.  The print didn't have any obvious failures but it looks like both the depth of details and the overall scale aren't dialed in yet.

The print was done at 50 micron layer height with anti-aliasing enabled which normally turn out better than shown above.  The smaller Hunter XMG looks to have crisper corners but both could use some improvement in that regard as well as further thickening of details when possible.  Additionally, they're a bit bigger than I expected compared with the official models.  The hunter is simply too big but the grizzly is a bit too wide (though the height is good).  

As you can see in the unassembled picture, I did have an issue with weak joints on the models with a limb fracture on each while attempting to remove the supports.  Admittedly I could have been more gentle but there were a TON of supports to remove and I had to pull off areas of light supports as a group when possible.  The supports under the groin and butt plate were so thick that they were effectively a solid scaffold a few millimeters away from the surface of the model instead of a series of vertical trunks.  I've never had fractures like that in the past using the same technique so I definitely think the modular nature of the models (as opposed to models that are one piece) contributed to the weakness. On the plus side, I do think that the overall look of the models is good and will fit in with the other HG figs I have both in the Blitz scale shown above as well as the older RAFM scale that I've covered previously.

To cut down on the density (but not total number!) of supports needed, I've separated the models into a trio of parts each(engine, upper torso, lower limbs).  I've also done a third round of thickening of details like the rivets, hip armor plates, and antennae so that they'll be more stable and obvious.  Finally, I'm adjusting the individual dimensions/proportions of the models overall to better resemble those of the official models.  I hope to have positive things to report with my next round of printing this weekend!


  1. I was going to say split the models into sub-assemblies. Looking forward to seeing how this project pans out.

  2. I usually try to print in one piece for stabilty reasons. The problem is that all those overhanging armor plate corners need to be supported if you want them to print properly and the higher than expected density of supports wasn't fully evident to me until after printing. The total number of supports will increase but they'll be spread out over separate parts that are individually oriented so I'm hoping the end effect will be significantly better.