Push in

Push in pushes faces inward. The main switch sets the selection mode: Tap faces or Draw a shape. Pushing selected faces moves them inward and adds side walls to make a dent. Each press after that moves the floor deeper. Push in is under Surface on the Build tab.

Tap faces

Select faces using Select , then select Push in. Use Size (Small, Medium, or Big) to set the distance per press (default: Small). If Mirror is on, matching faces on the other side move in too.

Floor sets the floor’s shape on curved surfaces:

• Scoop: Moves the selected faces inward together, keeping the surface’s curve on the floor.
• Flat: Moves all selected faces straight in along the direction they face together (from any camera angle), making a flat floor square to that direction. On a slanted face, such as a Cylinder’s side, the floor stays parallel to the face and every corner goes in the same depth. Flat needs faces that face roughly the same way. Each press goes one step deeper and stops before the far side, always leaving at least ⅛ block. A press that would come out the other side is refused and changes nothing (Too deep: it would come out the other side., or Too deep for that step: it would come out the other side. Try a smaller step. when a smaller step still fits); use Punch through to go through.

Faces selected at a part’s outer edge (for example, a side panel along the bottom) open the dent through that edge as a notch: there is no wall on that side, and the face beside it gets a matching step. A corner panel opens on both sides. A Cylinder’s side face reaches both caps, so its dent is a groove open at the top and bottom. With Scoop, this happens only where the faces push straight in. When a notch can’t be cut cleanly, the press is refused (That step goes past the edge. Try a smaller step. or Can’t create a pocket through that edge. Try Draw a shape › Partway, close to the edge but not touching.).

Punching through

From the second press on (Scoop), each step shows the presses left: Deeper. N more to go through, or Punch through. The dent stops one step before it reaches the other side. If the next step would go through the wall, a warning shows (One more press cuts a hole through it). The last step removes both the floor and the other side, making an open hole all the way through. A message then shows Cut complete.

Selecting Punch through at the foot of the panel goes all the way through in one step, skipping the stops. Use it to make open window frames, doorways, or other openings.

Draw a shape

Switch to Draw a shape and tap a face. Tap dot to dot to draw a closed shape; Dots sets the dot spacing (½, ¼, or ⅛). Use ↩ Undo dot to take back the last dot (on a closed shape it opens the loop again) or ✕ Start over to clear the shape. The drawing rules match Pull out : on flat faces a shape can run along the face’s edges, while on curved surfaces a shape spreads across the face rows next to each other. Closing the loop shows the Depth stepper and the Partway / All the way through switch. Pushing in rebuilds only the faces around the shape, so a shape can go next to an earlier cut, an arch or a window. A shape can’t circle a hole, dent or bump: at the last dot the status line reads A shape can’t go all the way round a hole, dent or bump. Draw it to one side. A corner too sharp to build cleanly shows A corner of the shape is too sharp to build cleanly. Press Undo dot and widen it.

Partway pushes the shape in to the Depth you set; select Push it in. All the way through changes the button to Cut through, which cuts a hole the shape of your drawing. It is as deep as the part is thick (for example ½, ¼ or 1½), and at least ⅛ block of wall must be left around the hole. Cut through leaves a frame of four-sided faces round each hole, front and back. The side keeps its paint: each piece of the frame keeps the paint of the face it came from, and the hole’s inner sides start unpainted. On a part too thin to push in partway, the switch starts on All the way through and Partway is dimmed. Shapes touching the edge of the side or drawn on curved surfaces can’t be cut all the way through. Tapping a dimmed side shows the reason (for example A hole needs wall all round it: draw it away from the edges or All the way through works on flat sides only).

Undoing a dent

Using Pull out on a dent’s floor moves it back out step by step. When the floor reaches the level of the surface around it, the dent closes flush. Undo also undoes a dent.

Limits

Push in needs a solid part. A flat sheet has no inside, so it can’t be pushed in; use Pull out first to give it thickness. Also, faces that point in clashing directions can’t be pushed in as one dent. Trying it shows a message to select fewer faces. When a drawn shape can’t be pushed in at all, the status strip shows the reason: The part is too shallow under this shape to push in, Too thin to push in. For a hole, draw it away from the edges, Too thin to push in, and a hole would leave too thin a wall, or Too thin to push in, and the far side is not flat under it.