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Adapters & couplers
LoRa 868 MHz antenna mast clip for 25 mm pole
A clip that fixes an SMA-mount 868 or 915 MHz LoRa whip antenna to a 25 mm pole so a Meshtastic or Helium node gets height and a clear view. The clip is a 40 mm tall saddle with a 25.4 mm bore and 0.3 mm clearance that closes around the pole with an M4 bolt and captive nut pocket, and a 6.5 mm hole in a 12 mm thick tab that takes an SMA female bulkhead, letting a short RG174 pigtail run down to the Heltec or LilyGO board. A 2 mm drain slot stops water pooling in the saddle. Print it on its side in ASA or PETG for UV resistance. 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 |
|---|---|
| saddle wall thickness | 3 mm |
| clip height | 40 mm |
| across flats | 7 mm |
| width along Z direction is height, this is radial extra | 12 mm |
| extra material beyond outer_r for ear | 8 mm |
Example prompt
Design an antenna mast clip 40 mm tall for a 25.4 mm pole with 0.3 mm clearance, a split saddle closed by an M4 bolt with a captive nut pocket, a 12 mm thick tab with a 6.5 mm hole for an SMA bulkhead connector, 3 mm walls and a 2 mm drain slot at the bottom of the saddle.
Fit notes
Pole diameters vary from 20 to 50 mm and a downloaded clip rarely matches yours. In SpeakCAD you describe the pole and connector, preview the clip in the browser, change it to an N-type or a 40 mm mast in the chat, and download the STL.
Questions people ask about a LoRa 868 MHz antenna mast clip for 25 mm pole
A clip that fixes an SMA-mount 868 or 915 MHz LoRa whip antenna to a 25 mm pole so a Meshtastic or Helium node gets height and a clear view. The clip is a 40 mm tall saddle with a 25.4 mm bore and 0.3 mm clearance that closes around the pole with an M4 bolt and captive nut pocket, and a 6.5 mm hole in a 12 mm thick tab that takes an SMA female bulkhead, letting a short RG174 pigtail run down to the Heltec or LilyGO board. A 2 mm drain slot stops water pooling in the saddle. Print it on its side in ASA or PETG for UV resistance.
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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