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Custom holder generator
A holder for the thing you own, not for the one in the download
Downloaded holders are made for someone else's drill bits, someone else's can, someone else's controller. SpeakCAD starts from yours: measure it, say where the holder goes and how the object goes in, and get a holder sized to it. A block of round pockets for bits, hex keys, pens or batteries you make by hand: a plate, pockets cut to a depth, copied in a grid, labelled, free, download included. A holder shaped to one object, on a wall, under a desk or in a drawer, you describe to the AI. STL, 3MF or G-code sliced for your printer, on a phone or a computer.
How it works
From the object's size to a holder that grips it
Calipers help, a ruler works: measure the object where the holder touches it, and decide whether it should drop in, sit snug or clip in.2
Cut the pockets
Tap Cut, choose the circle (or a slot or rectangle), type its diameter and depth and its centre in millimetres from the edges, Apply. Duplicate copies it in a row or a grid with the spacing you type. Text writes the size next to each pocket.3
Check the render
A hand edit rebuilds in your browser in a few seconds; with the AI, the first render usually appears within a minute or two: a new part gets deeper reasoning through the geometry, and small edits land in seconds. Tap two pockets with Measure to check the spacing, and the floor under a pocket for the material left.4
Download and print
A holder shaped by hand downloads free as STL or 3MF; a holder with AI work in it spends 4 credits. G-code comes sliced with the official OrcaSlicer profile of one of 380+ printers.What one holder costs
| Step | Cost |
|---|---|
| Live demo: 3 AI edits of a real part, no account | Free |
| The plate shape, its sizes typed in the viewer, pockets, copies in a row or a grid, labels and screw holes by hand | Free, and the STL or 3MF downloads free |
| Describing the holder (one AI request) | 2 credits |
| Each change by chat | 2 credits |
| Typing a new number in the dimensions panel, undo | Free |
| STL or 3MF download of a part with AI work in it | 4 credits; small fixes after it re-download free |
| G-code sliced for your printer | +5 credits per slice without Pro or Unlimited |
| Maker | $7.99 a month: 60 credits a month, about 6 parts with a couple of edits each; cancel anytime |
| Pro | $14.99 a month: 200 credits a month, sliced G-code included |
| Unlimited | $39.99 a month: unlimited requests and downloads |
Holder descriptions that render right the first time
The object's sizes, how it goes in, where the holder goes. Each opens in the editor with the text already typed; measure your own object before printing.“A wall holder for two 400 ml spray cans 66 mm across: two open rings 15 mm tall with 1 mm clearance, a ledge under each can, 3 mm walls, two countersunk holes for 4 mm wood screws.”
Open this prompt in the editor“A desk holder for a set of nine metric hex keys from 1.5 to 10 mm, standing in a row of hexagonal pockets sized across flats plus 0.3 mm, 20 mm deep, angled 15 degrees back, the size engraved in front of each.”
Open this prompt in the editor“An under-desk holder for a game controller 160 x 105 x 65 mm: a cradle that holds it by the grips with 1.5 mm clearance, open at the front, three countersunk screw holes on top.”
Open this prompt in the editor“A drill bit stand for bits from 1 to 10 mm in 0.5 mm steps: pockets 0.3 mm over each size, 15 mm deep, in two staggered rows, the size engraved in front of each pocket.”
Open this prompt in the editorTwo ways to make the holder
- By hand, free. Start from the plate shape and make it 15 to 25 mm thick. Cut a round pocket to a depth with Cut, Duplicate it into a row or a grid, engrave the size next to it with Text, drill two screw holes with Hole if it goes on a wall. Bits, hex keys, pens, batteries and small tools are done this way, and a holder shaped only by hand downloads free as STL or 3MF from a free account. The hand tools page shows each tool.
- With the AI. Describe the object and where it goes: a can on a wall, a controller under a desk, a phone on a stand, a tool on a pegboard. The AI writes the holder as a parametric model, so the clearance and every size stay numbers you can change after a test print. A shape that is hard to describe can come from a photo next to a ruler.
How the object goes in
| Fit | What it does | Ask for |
|---|---|---|
| Drop-in | Lifts out with no effort | 0.5 to 1 mm over the size |
| Snug | Holds by friction, no rattle | 0.2 to 0.3 mm over the size |
| Clip-in | Snaps in through a narrower opening | an opening about 85% of the diameter, and a test print |
SpeakCAD is the only AI 3D editor that calibrates itself to your printer: Fit Check cuts a five-minute test slice from the part that must fit, you report too tight, perfect or too loose, and every model after that is built with the clearance your printer needs. For a holder, the test slice is one pocket or the clip, printed in a few minutes before the whole holder.
Sizes to start from
Measure your own: brands differ.
| Object | Size (mm) |
|---|---|
| 1/4 inch hex bit | 6.35 across flats |
| 4 mm precision bit (iFixit style) | 4 across flats |
| AA / AAA cell | 14.5 / 10.5 across |
| 400 ml spray can | about 65 to 66 across |
| AirTag | 31.9 across, 8 thick |
Ready-made, or something else?
- Common holders and organizers are in the library: they open in a free account and resize in the viewer.
- A box with compartments and a lid: the box generator. A bracket or a wall mount on a screw pattern: the bracket generator.
- The how-to for trays and bins: the organizers use case.
What it costs
A holder made by hand from the plate shape downloads free. A holder with AI work in it uses credits. Start with Maker: 60 credits a month for $7.99, cancel anytime. Shaping a part by hand (a hole and its screw head, a cut, an added tab, raised or engraved text, an extruded face, rounded corners, and copies in a row, a grid or a circle), turning it around in 3D and changing its numbers in the viewer are free, and so is downloading a part you shaped by hand; each AI request (a new part or a chat edit) spends 2 credits, whichever model answers (up to 10 on a very large model); a download of a part with AI work in it spends 4 credits (+5 for G-code sliced for your printer without Pro or Unlimited); small fixes after a download re-download free.
Questions
Measure the object, then let a tool build the holder to those numbers. With SpeakCAD, a block of pockets (bits, hex keys, pens) is a few taps with the hand tools, free, and a holder shaped to one object is a description to the AI. It downloads STL, 3MF or G-code sliced for 380+ printers, on a phone or a computer.
About 0.5 to 1 mm over the object's size for a drop-in fit, 0.2 to 0.3 mm for a snug fit that does not rattle, and an opening about 85% of the diameter for a clip-in fit. Printers differ, so print one pocket first: Fit Check does that from the part itself.
Yes: describe it with its main sizes (length, width, thickness at the grip), or attach a photo of it next to a ruler, and the AI builds a cradle or a cut-out around it (one AI request, 2 credits). Check the fit on a test print before printing a large holder.
Yes. The Text tool writes raised or engraved letters on a flat face, up to 40 characters in one bold sans font; type the size, place it in front of the pocket, and Duplicate it like the pockets. The AI can also engrave every size in one request.
Yes. Add countersunk screw holes with the Hole tool (M2 to M8 presets), or ask the AI for keyhole slots, a pegboard hook pattern or a French cleat on the back.
Yes. SpeakCAD runs in Safari on iPhone and iPad and in Chrome on Android: type the sizes, tap where the pockets go, and the STL, 3MF or G-code lands in Files or Downloads.
A holder shaped by hand from the plate shape, its download included, is free with a free account. With the AI, describing the holder is one request (2 credits), each change by chat another, and a download 4 credits; typing a number in the viewer spends nothing. A new free account also gets its first AI request and that part's first change on us (not offered in every country); downloading the part spends 4 credits, like any AI work. G-code sliced for your printer is included in Pro and Unlimited and spends 5 extra credits per slice otherwise.
Read more
Organizers and storageDrawer trays, bit holders and bins sized to the millimetre.Ready-made organizers in the libraryHolders, trays and bins that open in a free account and resize in the viewer.Copy a part from a photoPhotograph the object next to a ruler and the AI takes the sizes from it.Duplicate in a row, a grid or a circleOne pocket, then the whole block.Box generatorBoxes with lids, dividers and labels, sized to what goes inside.Bracket generatorBrackets, wall mounts and adapter plates on your screw pattern.