I Love 3D Printing Mug Set

Clogged nozzles, layer shifts, poor layer adhesion… anyone familiar with 3D printing will recognize these right away!

Perfect as a prank first print for beginners, featuring built-in layer shifts, missing top layers, and funny mishaps.

Getting or giving a new 3D printer? This is the perfect first print! Especially if you’re gifting someone a new machine: make them print this model first without telling them what it's supposed to really look like, and patiently wait to see their face when it’s done. Any print flaws will only make it better!

3D designing and printing teaches us to expect mistakes, plan for them, fix them, and try again. If you are new to the hobby, you can expect to have more than a few prints that come out looking something like this mug.

Disclaimer: All flaws in this model are entirely intentional!

This is a remix of the excellent design by DaveMakesStuff, which can be found here: Thingiverse Link. I sliced it up to give you more profile options to choose from and added some literal holes to it just for a little more fun-loving, mishap-filled character. Print one or print them all to show your love for 3D printing mishaps!

Available Versions

• Gag Mug: This is a structurally stable, all-in-one piece mug with no layer shifting. However, just like the others, it still features a few missing sections and an exposed top infill layer for that classic "unfinished print" look.

• All Right Shift: This profile shifts every single section off to the right.

• All Left Shift: This profile shifts every single section off to the left.

• Double Shift: The ultimate chaos profile! Every section shifts off in both directions, along with a little forward and backward movement.

• Right Shift: Features standard shifting like the Double Shift, but without the extra backward and forward movement.

• Left Shift: Similar to the Right Shift, but pushed in the opposite direction.

Dimensions

• Top Diameter: 3.35 inches

• Bottom Diameter: 2.43 inches

• Height: 3.7 inches

• Thickness: 0.24 inches

• Handle: 1.44 x 2.8 inches

Print Settings

• Orientation: Print all versions standing upright. No supports needed!

• Material: PLA (or whatever scrap filament you want to use up)

• Layer Height: 0.12mm to 0.20mm

• Infill: 10%

Pro-Tip for Maximum Chaos (Optional)

If you want to make these mugs look even more like an accidental disaster, try tweaking your slicer settings to mimic a completely uncalibrated machine. Here are a few ways to safely induce some classic printing flaws:

• The "Spiderweb" Special (Stringing): Turn Retraction OFF or drop your retraction distance down to 0.5mm. Combine this with bumping your nozzle temperature up by 5°C–10°C above your normal profile. This will leave a beautiful web of plastic strings inside and outside the mug.

• The Over-Extruder (Blobs & Zits): Increase your Extrusion Multiplier (Flow Rate) to 105% or 110%. Your printer will pump out just a bit too much plastic, creating rough surfaces, messy layers, and random blobs where the nozzle zigs and zags.

• The "Drafty Room" Look (Bad Adhesion/Gaps): If you are daring, turn your Part Cooling Fan OFF entirely for the first few millimeters, or lower it significantly throughout the print. Combined with printing a bit too fast, you'll get some beautifully ugly droops and poor layer bonding.

• The Fuzzy Skin Roll: Enable the Fuzzy Skin setting in your slicer (set to low thickness/density). It adds a crazy, textured bark-like finish that makes it look like your printer was having a total existential crisis.