Sketch Tools

Line

Rib Thickness

Default rib thickness is 0.25 in. Adjust it here before exporting.

Bevel Setup

Bevel angle

deg

Beveled working edge

Pick which sketch edges become the clay-contact bevel. The shape labels on the canvas show each edge number and length.

No edges are beveled yet. Choose them on the sketch when you are ready.

Finger Hole

Include a through-hole Hole diameter

Hole bevel

The hole is always a through-hole. Click inside the shaded profile after choosing `Place Hole`.

Sketch Space

in mm

Profile units shown in inches

Start your outline

Draw a loop with any tool. As soon as it closes, the profile will shade and become ready for 3D generation.

Normal Precision

Bubbles

Profile height --

Profile width --

Rib Volume --

Print cost --

Grid & Layers

Show grid Snap to grid Snap spacing

Tracing Image Layer

Show tracing image Image opacity Image scale

Use `Move Image` here to drag the photo. Drag the corner or side handles on the canvas to scale it directly.

Clay Shrinkage Rate

Apply clay shrinkage rate to existing sketch Shrinkage rate

10% shrinkage example: a 10 cm cup needs an 11.1 cm raw form (10 ÷ 0.90).

Clay Type	Common Shrinkage
Earthenware	5-10%
Stoneware	10-13%
Porcelain	12-15%
Paper Clay	6-10%

Use Rib Forge Studio step by step on your phone.

The full studio, organized for your phone.

Sketch the rib profile.

Choose the working bevel.

Add the finger hole.

Scale for clay shrinkage if needed.

Review the 3D rib and deliver it.

Start designing in the studio.

Sketch Space

Grid & Layers

Tracing Image Layer

Clay Shrinkage Rate

Start with a freehand profile and shape the rib you actually want.

Use a mug, bowl, existing rib, or paper sketch as a starting point when a real form is useful.

Adjust bevel, finger hole, thickness, and shrinkage, then save variations for future forms.

Sketch the rib shape

Tune the working details

Preview the rib in 3D

Get the rib your way

$1 per STL export.

$1 STL, 10 reward credits earned.

Print ribs can be batched into one cart.

Email reset plus authenticator-app 2FA.

Custom work is final after delivery or production start.

Guided step

The full studio, organized for your phone.

Sketch the rib profile.

Choose the working bevel.

Add the finger hole.

Scale for clay shrinkage if needed.

Review the 3D rib and deliver it.

Start designing in the studio.

Sketch Space

Grid & Layers

Tracing Image Layer

Clay Shrinkage Rate

Start with a freehand profile and shape the rib you actually want.

Use a mug, bowl, existing rib, or paper sketch as a starting point when a real form is useful.

Adjust bevel, finger hole, thickness, and shrinkage, then save variations for future forms.

Sketch the rib shape

Tune the working details

Preview the rib in 3D

Get the rib your way

$1 per STL export.

$1 STL, 10 reward credits earned.

Print ribs can be batched into one cart.

Email reset plus authenticator-app 2FA.

Custom work is final after delivery or production start.

Guided step

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