Hi all,
I am currently working an adapting the Reach M2 to to a few different use cases. Namely allowing it to be added to a survey pole as a rover, and a phone mount to give any phone cheap RTK accuracy.
Has anyone designed an adapter for the Multi-band helical GNSS antenna, so that it can be screwed on to a standard 5/8 thread on a survey pole? Most of the design iterations i am doing is through 3D printing, so any models would be greatly appreciated.
Cheers
Nothing I’d be willing to share or promote. My 2 circular aluminum disks offset by some motherboard standoff spacers and a 5/8 nut JB welded to one of the aluminum disks did not stand the test of time.
I imagine with a 3d printer you could make some really nice mounts. Curious too as to what others have come up with.
Here you go. This is as simple as it gets. Got the PVC pipe at Home Depot and used a 5/8x11 tribrach puck,
also recessed helical antenna about 5mm, center drilled
In drill press for determining exact center.
I did this when I bought my first M2 but have NGS calibrated antennas now. It’s a good backup though if needed. M2 receiver and battery in blue hip bag. I use a big ziploc bag to cover the hip bag if it might rain. I haven’t used the Lora radio with my M2’s, they are used as a static baseline for my RTN rover. If cell service is not available for the RTN rover, I’ll have a closed polygon for each point for post processing.
Remember… closed loops are your best friend to determine the true accuracy of any measured point.
Hello Emlid Community:
@EBE111057 Bryan Enfinger’s solution is great and the way to go. I keep forgetting the amazing utility of PVC.
A couple years ago, I did use TinkerCad to design and print three parts; Antenna Mount, M2 + Lora Radio Holder, and USB Batter Pack Holder. I spent way too much time and plastic getting the tolerances just right so the USB Battery Pack, M2, and Radio would stay securely in their holders with friction. I expect others to have varying results on different printers. I also spent too much time with an Xacto knife and dental pick clearing plastic so the antenna cable and 5/8" nut would fit in their opening.
Sorry I do not have a complete Bill of Materials.
The Battery Holder is designed for this FOSPOWER PowerActive Rugged Power Bank:
Here are links to the files on TinkerCAD:
Antenna Mount
USB Battery Pack Holder
M2 + Lora Radio Holder
Attached is a ZIP file with the STL and OBJs downloaded from TinkerCAD:
Emlid_M2_3D_Prints_for_Rover_Pole.zip (112.1 KB)
That’s a neat design Joe ! One of these days I’ll get me a 3D printer. I don’t think I could have designed something like yours. You should try and market your design. I like the simple design !
I had planned on designing a bigger one for the battery and receiver (bigger pvc pipe), but being so busy with work and back issues I’ve been reduced mostly to an office surveyor. I do get out now and then.
Thanks for posting your cool design !
Works well. The Reach M2 just snaps to the pole. Compared readings to a Topcon Hyper and at most the results were off by 8mm.
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