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LimeSDR Case

by hahnpv, published

LimeSDR Case by hahnpv Dec 10, 2016
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License

BSD License
LimeSDR Case by hahnpv is licensed under the BSD License license.

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Summary

NOTE: Received word on the forums that the power supply plug and jumper header are different for different versions of the board. This set of files are built to work with the 1.4 rev of the board. Once I get some more details I will update the STL files to accomodate all versions. Thanks!

This is a printable case for your LimeSDR from MyraidRF ( https://www.crowdsupply.com/lime-micro/limesdr ) The case contains four SMA antenna ports and holes for USB and external power interfaces. The LED indicator lights are covered but show through the plastic. Vent holes provided to help keep the FPGA cool. The TX/RX and channel number indicators are indented but not cut through: this allows the user to drip a little paint in there and color the text if desired. The layer is thin (0.4mm) and can be cut away if desired.

Print Settings

Printer:

FLSUN Kossel

Rafts:

Doesn't Matter

Supports:

Doesn't Matter

Resolution:

0.2mm

Infill:

20%


Notes:

This should be pretty easy to print. Use support for lid.

Post-Printing

Cleanup and Assembly

Carefully remove excess plastic from the vents (somewhat fragile) and SMA ports (somewhat less fragile). The SMA ports don't need to be perfectly clean, just enough to fit the connector through. Before screwing the PCB into the case I would run the M3 screws through without the PCB to ensure proper alignment. Then, insert screws into base and through board (carefully) and visually inspect. SMA wires can tangle: I wrapped them into a loose loop and used electrical tape to secure.

How I Designed This

Designing

I used Fusion 360. I was fortunate to get a pre-release board to review and was able to design and fit the case to the actual product.

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I see a little problem with the lower part of the case. The USB-A connector is at the same height as the PCB but the screw holders for the PCB are a bit deeper than the outer edge of the case. This means the pcb couldn't fit on the screw holders and stand up a bit at the edge. I think there need to be a little clearance for the usb connector at the edge of the lower case part. I see the problem with my limeSDR v1.4s.

It is at the same height as the top of the PCB. The screw depth puts the top of the PCB flush with the bottom of the print. I'll look closer at home by my 1.4 fit well - if you have pictures that would be helpful. maybe the PCB changed from the pre-release version I got.

Feb 6, 2017 - Modified Feb 6, 2017

I wanted to have access to the different antennas inside so I grabbed the base and added two side panels like this: http://imgur.com/nqI787j
I don't know if this would be of used to anyone, if it is you can download the STL from here: http://www.123dapp.com/123D_Design/LimeSDR-Base/6588010 (I think it may ask for account, but it is free.)

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