Whadda/Vellemann K8118 Bat Detector Housing

I built the Whadda/Vellemann bat detector kit (it's sold under different names, for example this one: https://www.conrad.de/de/p/whadda-wsak8118-signal-generator-2482135.html?hk=SEM&WT.mc_id=google_pla&utm_source=google&utm_medium=cpc&utm_campaign=DE+-+PMAX+-+Nonbrand+-+Education+&+Development+kits=&utm_id=17952094005&gad_source=1&gad_campaignid=17348145104&gbraid=0AAAAAD1-3H6cq2FhS7lhOlykduyo-F-lb&gclid=Cj0KCQjwj8jDBhD1ARIsACRV2TtT1mzu4xBsIT3xCCwye5fwABRMR-8PjmE3emJ5Was9r1QWij1veEwaAquoEALw_wcB&refresh=true)

It's a fun experience to solder the kit together and play around with it to listen to bat calls and other ultrasonics. To make it a bit nicer to use, I decided to make a 3D-printed housing for it. I also replaced the AA battery clip with one for AAA batteries as the AAs made it very chonky and protruded beyond the PCB.

Materials required:

• Bat detector solder kit
• M2.5 & M3 threaded inserts and M2.5 screws
• 3x AAA battery clip

Instructions:

• Print all parts with the flat sides down (flip the top part). The labels are intended to be printed in a different color. If you don't have a multicolor system, you can print it with two manual filament changes. Or you can of course also just print it all in the same color.
• Install M2.5 threaded inserts in the top, the bottom blocks and in the AA-AAA adapter 2x M2.5 and 2x M3 threaded inserts.
• Solder the kit but instead of the included AA battery clip, use the AAA one and mount it with the printed adapter.
• Install the bottom blocks in the bottom shell with M2.5 screws so they extend into the opening (this is where the battery cover attaches.
• Push the PCB into the top part without the adjustment knobs on the potentiometers.
• Attach the bottom with M2.5 screws.
• Attach knobs, insert batteries and install battery cover with M2.5 screws.
• Have fun listening to all the ultrasonic sounds around you :)

Let me know if you have any questions (I didn't feel like writing 5 pages documentation ;) ) or need adjustments for the design.