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What's He Building in There Game Insert & Upgrades

Miniatures Free
Plan Your Print
About 497 g of filament From the designer's print profile
Print Profile 29h 53m 497 g PLA
What it takes
14 plates 29h 53m 497 g PLA
P1S, P1P, P2S, H2D, X1, H2C, H2D Pro, A2L, A1, H2S, X2D, X1E, X1 Carbon
Miniatures support Base plate only Threshold 35 with Slim Tree Supports.
Plate Details (14)
0.4 mm nozzle, all plates
Plate 1 · Player Shields
3h 36m 79 g PLA · 79 g
Plate 2 · Resource Card Tray
1h 56m 38 g PLA · 38 g
Plate 3 · Player Boxes
4h 37m 74 g PLA · 74 g
Plate 4 · Player Box Lid
17m 4 g PLA · 4 g
Plate 5 · Big Cards Tray
3h 21m 65 g PLA · 65 g
Plate 6 · Coin Trays
2h 50m 62 g PLA · 62 g
Plate 7 · Extra Tray
2h 42m 56 g PLA · 56 g
Plate 8 · Coins 1s
2h 23m 27 g PLA · 27 g
Plate 9
40m 7 g PLA · 7 g
Plate 10 · Minions and Player Cubes
1h 6m 11 g PLA · 11 g
Plate 11 · Scientist Minis
2h 39m 21 g PLA · 21 g
Plate 12 · Round Marker
19m 2 g PLA · 2 g
Plate 13 · First Player Mini
1h 23m 13 g PLA · 13 g
Plate 14 · Resource Card Tray for Small Beds
2h 4m 38 g PLA · 38 g
Designer's Description

The game needed some organization, and I could not find anything on this game, so I designed my own. It's nothing fancy but it works. I used TinkerCAD. No lid lift.

--A FEW NOTES:

-(1) I printed everything on my Bambu Lab P1S with a .4mm Standard Nozzle with Layer Height of .12mm @High Quality. The miniatures came out great with the .4mm and was going to change over to my .2mm Nozzle but decided not to in the end. I used Sunlu Matte White PLA on the insert itself and the Sunlu PLA color of my choices for the miniatures. Lavander Purple, Green, Blue, Red, Yellow, and Sunny Orange. You can of course use whatever colors you like.

-(2) My cards are not sleeved, so SLEEVED CARDS WILL NOT FIT. I was going to try and make a sleeve version but there are so many different lengths that everything would have to be changed.

-(3) The Miniatures in this set are not my design. I shrunk each one down and added a base. The base is the same size as the spots on the board. I will list the minis and the places where I found them as they are great. The insert will still work without the miniatures, but I like the looks of them! When printing the minis, I used Slim Tree Support on base plate only at Threshold Angle 35. Print one of each of the 3 Minions, 5 Cubes and 1 scientist of your choice in a color you wish, then repeat using a different scientist. I also added the Mini Base I made and used in case you like to add you own minis or find other one you like.

-(4) For the Mini Resource Cards, I've put three different files. If using a small printer bed, use both Resource Cards Split 1 and 2 (print 2 of each). You can glue them together if you wish but not necessary. If using a standard size print bed, just print 2 of the Resource Cards and ignore the Split files.

-(5) If you like the Honeycomb Player Lids, before slicing, click on the lid. Go to the “Strength” tab and under “Top/Bottom Shells” make the Top Shell Layers and Bottom Shell Layers to 0. Then go to “Sparse Infill” and change “Sparse Infill Pattern” to Honeycomb (or whatever pattern you like). Then change the Sparse Infill Density to what you like, I used 25%. You can print the entire insert this way if you like but keep in mind that the Player Boxes are sideways in the game box so only the bottom would be that way. You also can just print the lids regularly if you like as well.

-(6) I did design the coins. I just made a basic coin, nothing to fancy. I printed more than what the amount shows in the instructions but that's just me. I used Sunlu Silk PLA, Light Gold and Grey. You can print more coins and use them in other games as well if desired.

The miniatures:

Professor Fink (from the Simpsons) https://makerworld.com/en/models/1707445-professor-frink-the-simpsons-adorable-model#profileId-1811392

Professor Farnsworth (from Futurama) https://makerworld.com/en/models/1349440-futurama-professor-hubert-farnsworth-figurine#profileId-1396073

Alchemist Owl https://makerworld.com/en/models/1562570-the-alchemist-owls-dragons#profileId-1642359

Mad Scientist Gnome https://www.printables.com/model/1411577-mad-scientist-gnome

Raving Rabbid https://www.printables.com/model/1371949-rabbids-lapins-cretins-savant-fou

Beaker (from the Muppets) https://www.printables.com/model/1090808-beaker

The Minions https://www.printables.com/model/1223352-the-minions-mimoni

The Beaker (Round Tracker Token) https://makerworld.com/en/models/1437100-mini-science-beaker-super-fast#profileId-1495243

Einstein (First Player Token) https://makerworld.com/en/models/1468123-einstein#profileId-1531825

board game acc boardgame accesories boardgame accessories boardgame ac
What's He Building in There? box art What's He Building in There? 2013 Layer by Layer
Cover Colors

Main colors from the cover art. Find matching filament, or tap swatches to narrow.

Matching filament

Submitted via BGG Geeklist
Jun 22, 2026 by jasonw91

I love this game but there was no organization in this whatsoever! I designed a basic insert with upgraded pieces. This is for non sleeved cards. SLEEVED CARDS WILL NOT FIT. Everything would have to be resized and redesigned for sleeved cards. Please note: I didn't design the miniatures. Just found them on Makerworld and Printables, shrunk them to size and added a base. I noted where they are from in the listing.