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Tools & jigs
Digital caliper depth base attachment
Most digital calipers have a thin depth rod that rocks on the edge of a hole, giving inconsistent readings. This clip-on base slides over the end of the caliper beam and provides a 60 mm wide flat reference surface so depth measurements are stable. It is 60 x 16 x 12 mm with a pocket matching the beam cross section, typically 16 x 3.5 mm with 0.15 mm clearance, and a small rib that snaps into the beam edge. Print it flat in PETG with the reference face on the bed. 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
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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.3Print
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)
| Parameter | Value |
|---|---|
| length (X) | 60 mm |
| width (Y) | 16 mm |
| height (Z) | 12 mm |
| beam width | 16 mm |
| beam thickness | 3.5 mm |
| per-side clearance | 0.15 mm |
| rib protrusion into slot | 0.3 mm |
| rib length along X (a small nub, not full length) | 6 mm |
| channel diameter | 2 mm |
| minimum wall below channel | 1.5 mm |
| min floor under slot | 1.5 mm |
Example prompt
Create a caliper depth base 60 x 16 x 12 mm that slides onto a beam 16 mm wide and 3.5 mm thick with 0.15 mm clearance, includes a 0.3 mm retaining rib, a 2 mm clearance channel for the depth rod, and a flat underside.
Fit notes
Beam dimensions differ between caliper brands, so a random download often fits loosely or not at all. Measure your beam, give SpeakCAD the numbers, and receive a base made for that tool. Open the ready-made model free, change its numbers in the viewer and download the STL or 3MF free; AI changes use credits.
Questions people ask about a digital caliper depth base attachment
Most digital calipers have a thin depth rod that rocks on the edge of a hole, giving inconsistent readings. This clip-on base slides over the end of the caliper beam and provides a 60 mm wide flat reference surface so depth measurements are stable. It is 60 x 16 x 12 mm with a pocket matching the beam cross section, typically 16 x 3.5 mm with 0.15 mm clearance, and a small rib that snaps into the beam edge. Print it flat in PETG with the reference face on the bed.
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.
Print it your way
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