Hobby & gaming

Round miniature bases with slot

Slotted round bases hold metal or resin miniatures with a tab underneath, and buying them in odd sizes gets expensive. A useful base is 25, 32 or 40 mm in diameter, 3 mm thick with a 1 mm bevel around the top edge, and a centred slot 20 mm long by 1.5 mm wide that goes fully through. Printing them flat with a 0.12 mm layer height gives a clean surface for texturing, and PLA handles them without warping. Open the ready-made model free, resize it on your phone or computer, then download a print-ready STL, 3MF or G-code sliced for your printer, free.
Opening the ready-made model and downloading it as STL or 3MF are free, no card; AI changes use credits, from Maker at $7.99 a month.No printer? We print this part and ship it to your door. See its priceUpdated
1

Open

Create a free account (no card) and open this ready-made model in SpeakCAD. It renders in your browser, on your phone or computer. It is not a fixed STL: every dimension stays editable.
2

Adjust

Change its numbers in the viewer for free, or ask the AI in the chat: wall thickness, hole size, the thing it clips onto. AI changes use 2 credits per request (1 for a quick edit, 3 for a redesign), paid with a plan from Maker at $7.99 a month.
3

Print

Download a watertight STL or 3MF free, with your numbers and hand edits, or G-code sliced for your printer at the same price. After an AI change the download is included in every plan (4 credits without one).

Dimensions of the ready-made model (editable)

ParameterValue
base diameter32 mm
total base thickness3 mm
slot total length20 mm
slot width1.5 mm
magnet diameter5 mm
magnet depth (recess depth)2 mm
offset from center, along Y, to avoid slot9 mm
Measured values from the ready-made model; change any of them after opening it, or in the preview above.

Example prompt

Make a round miniature base 32 mm in diameter and 3 mm thick with a 1 mm 45-degree bevel on the top edge, a through slot 20 mm long and 1.5 mm wide in the centre, and a 5 x 2 mm magnet recess underneath.

This prompt comes with the ready-made model when you sign in, in case you want the AI to redesign it (3 credits a redesign); changing numbers in the viewer is free.

Fit notes

SpeakCAD makes it easy to produce the exact diameter and slot width your models need, including odd combinations like a 28.5 mm base with a 2 mm tab. Adjust the bevel or add a magnet pocket in the chat, preview, and download the file only when you are happy.

Also searched as: 3d printed miniature bases, 32mm slotted base stl, warhammer base 3d print, round mini base with magnet hole.

Questions people ask about round miniature bases with slot

Slotted round bases hold metal or resin miniatures with a tab underneath, and buying them in odd sizes gets expensive. A useful base is 25, 32 or 40 mm in diameter, 3 mm thick with a 1 mm bevel around the top edge, and a centred slot 20 mm long by 1.5 mm wide that goes fully through. Printing them flat with a 0.12 mm layer height gives a clean surface for texturing, and PLA handles them without warping.

Click Open it free on this page and create a free account (no card): the ready-made model opens in your browser, on your phone or computer, nothing to install. Change its numbers in the viewer for free and download a watertight STL or 3MF free, or G-code sliced for your printer at the same price. An AI change in the chat uses 2 credits per request (3 for a redesign), and the download after it is included in every plan (4 credits without one). Start with Maker: 50 credits a month for $7.99, cancel anytime.

On this page: open the ready-made model free in a SpeakCAD account (no card), change any dimension in the viewer, then download the STL or 3MF free, or G-code sliced for your printer at the same price.

A shared STL is modelled for someone else's measurements. Here you open the ready-made model free, change it to your measurements in the viewer, then download a file sized for the part you actually own, free as STL or 3MF.

Yes. SpeakCAD slices the part on its servers with OrcaSlicer and your printer's official profile (380+ printers, including Bambu Lab, Prusa, Creality and Elegoo), and you download the G-code (a sliced .gcode.3mf for Bambu Lab printers). G-code sliced for your printer costs the same as the STL: included in every plan, free for a part you shaped by hand, 4 credits without a plan for a part with AI work in it. Pick your printer on the printers page to see its profile.

No. SpeakCAD runs in the browser on your phone or computer: the chat, the 3D engine and the live viewer load in the tab. The only file you download is the finished STL, 3MF or sliced G-code.

Open, resize and print your round miniature bases with slot

Nothing to install. Open the ready-made model in a free account, change its numbers in the viewer or shape it with the hand tools (a hole, a cut, rounded corners), then download the STL or 3MF free, or sliced G-code with credits.

Looking for a finished design by a maker? Check the marketplace, where makers sell rated models for credits.