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Everyday fixes
Roborock S8 dock threshold ramp for door sills
A gentle ramp that lets a Roborock S8, S7 MaxV or Q Revo climb a 20 to 25 mm door threshold that otherwise stops it dead, and a matching wedge that levels the dock on a sloped floor. The ramp is 300 mm wide and 200 mm long rising to 22 mm at a 6 degree slope, with 1 mm ribs across the surface every 10 mm for traction and a 3 mm edge lip that sits over the sill so the robot's cliff sensors see a continuous floor. It is hollow with 2 mm walls and prints flat in PETG or TPU; a strip of double-sided tape recess is moulded into the underside. 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 |
|---|---|
| width of each printed half (2x = 300mm total, minus overlap not needed, just butted) | 150 mm |
| ramp length (rise direction) | 200 mm |
| height at low end | 2 mm |
| height at high end | 22 mm |
| wall thickness | 2 mm |
| traction rib width | 1 mm |
| traction rib height | 1 mm |
| overhanging lip length at tall end | 3 mm |
| lip overhang depth (how far it hangs down from top edge) | 3 mm |
| tape recess width | 20 mm |
| tape recess depth | 1 mm |
Example prompt
Create a threshold ramp 300 mm wide and 200 mm long rising from 2 mm to 22 mm at a 6 degree slope, with 1 mm traction ribs every 10 mm, a 3 mm overhanging lip at the tall end, 2 mm walls, a hollow interior and a 20 by 1 mm tape recess underneath.
Fit notes
Roborock's recommended maximum climb is 20 mm, and the right ramp angle depends on your sill. In SpeakCAD you give the threshold height and width, preview the ramp in the browser, add a second ramp for a Roomba j7 in the chat, and download the STL.
Questions people ask about a Roborock S8 dock threshold ramp for door sills
A gentle ramp that lets a Roborock S8, S7 MaxV or Q Revo climb a 20 to 25 mm door threshold that otherwise stops it dead, and a matching wedge that levels the dock on a sloped floor. The ramp is 300 mm wide and 200 mm long rising to 22 mm at a 6 degree slope, with 1 mm ribs across the surface every 10 mm for traction and a 3 mm edge lip that sits over the sill so the robot's cliff sensors see a continuous floor. It is hollow with 2 mm walls and prints flat in PETG or TPU; a strip of double-sided tape recess is moulded into the underside.
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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