From the Loftsmith Workshop

Mug hugger cookie cutter with notch sized to your mug rim

A mug hugger cookie cutter whose notch is sized to your mug's rim plus your dough's spread, in star, tree, heart, ghost or pumpkin. You enter the rim thickness (3 to 9 mm, from calipers) and how far your dough spreads per edge (0 to 3 mm). The notch is then cut wider by twice the spread, so after baking it closes to the rim thickness plus 0.5 to 2 mm of play. At the defaults (80 mm star, 5 mm rim, 1 mm spread) the cutter is 90 x 86 x 15 mm and cuts an 8 mm notch that bakes to 6 mm. It hangs with its centre of mass 10 mm outside the mug wall and a 22 mm inner leg inside the mug. Checked in the

1 part · 11 g · 90 × 86 × 15 mm

by Loftsmith Workshop

Mug hugger cookie cutter with notch sized to your mug rim
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No adjustable sizes

Ask for the sizes you want to tweak, e.g. “make the width adjustable”.

Change it in the Studio

Parts

  • cutter · PLA · Flange flat on the bed, cutting edge up (as modelled).

    90 x 86 x 15 mm at the defaults. About 11 g and 20 minutes at 2 walls / 15% infill. No supports and no overhangs. PLA is stiff enough for the 0.9 mm blade, and the cutter only meets cold dough. Colour follows the outline: gold star, green tree, red heart, off-white ghost, orange pumpkin.

Print settings

Layer height
0.2 mm
Walls
2 (the 0.9 mm blade prints as two perimeters with a 0.4 mm nozzle)
Infill
15% (only the flange and notch tongue have infill)
Supports
None
Notes
About 11 g of PLA and about 20 minutes at 2 walls / 15% (build report default). Use a 0.4 mm nozzle; the blade is sized for two 0.45 mm lines. Print flange down so the cutting edge is the last, cleanest layer.

Assembly

  1. Measure the wall thickness of your mug rim with calipers and set the rim slider.
  2. Bake one plain test cookie and measure how far its edge moved outward from the cut line. Set the spread slider to that number (per edge, not total).
  3. Pick the outline and cookie size, then print the cutter flange-down with no supports.
  4. Flour the cutter, press it into rolled dough with the flange up, and lift the cookie out. The solid tongue cuts both walls of the notch.
  5. After baking and cooling, slide the notch down over the mug rim. The narrow leg goes inside the mug and the larger part hangs outside.

Good to know

  • Not certified food-safe. Hand wash only (no dishwasher; PLA softens around 55 °C). Flour the cutter between cuts.
  • The notch only fits if your spread number is right. Spread changes with recipe, dough thickness and chilling, so measure a test cookie from your own dough instead of guessing.
  • The engine checks the notch width, balance and blade thickness against a flat-sided model cookie and a round 84 mm mug. Real cookies puff and brown unevenly, so leave at least the default 1 mm of play.
  • Each slider was checked at its own minimum and maximum with the others at their defaults. Some combinations of extremes, such as a 50 mm cookie with the notch at 38%, can fail the balance check. If a check on the Check tab turns red, move the notch position slider back toward 30%.
  • Cookies are fragile. Hang them on a mug briefly for serving, not for carrying the mug around.
I printed this Remix

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