1
Organizers & storage
ESP32 dev board storage rack with 10 slots
A desk rack that stores ESP32 DevKit, ESP32-C3, ESP8266 NodeMCU and Arduino Nano boards upright with their USB ports facing up so the right one is easy to grab. Typical 30-pin ESP32 DevKit boards are 55 x 28 mm with header pins protruding 6 mm below, so each of the ten slots is 30 mm wide and 12 mm deep with a 3.5 mm channel that swallows the pins and a 0.5 mm clearance for the PCB; slot pitch is 18 mm to clear USB shields. The base is 190 x 45 x 20 mm with 2 mm walls and a 1 mm embossed number beside each slot. Prints upright with no supports. 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
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.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 |
|---|---|
| X | 190 mm |
| Y (depth) | 45 mm |
| Z | 20 mm |
| wall thickness | 2 mm |
| slot opening width (X) | 30 mm |
| divider wall thickness between slots | 2 mm |
| front-to-back depth of board pocket (Y) | 12 mm |
| width of channel slot (X) for header clearance | 3.5 mm |
| depth into base (Z) for header channel | 4 mm |
Example prompt
Design a dev board storage rack 190 x 45 x 20 mm with 2 mm walls and ten slots 30 mm wide and 12 mm deep at 18 mm pitch for ESP32 DevKit boards 55 x 28 mm, each slot with a 3.5 mm pin header channel, 0.5 mm PCB clearance and a 1 mm embossed slot number.
Fit notes
A rack made for your actual board mix stops the drawer-of-loose-boards problem better than a download that assumes one size. In SpeakCAD you describe the boards, preview the rack in the browser, add wider slots for a Wemos D1 Mini or an Uno in the chat, and download the STL.
Questions people ask about an ESP32 dev board storage rack with 10 slots
A desk rack that stores ESP32 DevKit, ESP32-C3, ESP8266 NodeMCU and Arduino Nano boards upright with their USB ports facing up so the right one is easy to grab. Typical 30-pin ESP32 DevKit boards are 55 x 28 mm with header pins protruding 6 mm below, so each of the ten slots is 30 mm wide and 12 mm deep with a 3.5 mm channel that swallows the pins and a 0.5 mm clearance for the PCB; slot pitch is 18 mm to clear USB shields. The base is 190 x 45 x 20 mm with 2 mm walls and a 1 mm embossed number beside each slot. Prints upright with no supports.
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
More organizers & storage
Boss pedal patch cable and 9V power lead organizerReady-made, opens free. A gig-bag tray that keeps the small stuff behind a pedalboard sorted: 15 cm patch cables, 5.5 x 2.1 mm 9 V daisy-chain leads for Boss and Strymon pedals, spa…IKEA SKÅDIS holder for Makita impact bitsReady-made, opens free. A SKÅDIS pegboard plate with 15 hex pockets 6.6 mm across and two 5 mm SKÅDIS hooks on 40 mm centres.Apple TV Siri Remote 3rd-gen trayReady-made, opens free. A tray that parks a 3rd-gen Siri Remote (about 136 × 35 × 9 mm) plus a spare USB-C cable so the remote does not vanish between sofa cushions.Entryway catch-all tray for keys and walletReady-made, opens free. A low rectangular dish for the hallway table that corrals keys, wallet, earbuds and coins as you walk in.Raspberry Pi HAT storage rack with labelled slotsReady-made, opens free. A vertical rack that stores Raspberry Pi HATs, pHATs and GPIO expansion boards on their edge so pins are not bent in a drawer.Tesla Model 3 center console organizer tray insertReady-made, opens free. A tray that drops into the deep front cubby of the 2021 onward Tesla Model 3 and Model Y center console and splits it into a coin well, a key card slot, a su…