dillion inspired low primer alarm

i had a primer alarm go bad and thought it might make a good project for the printer.
its printed in PLA with tree support (not needed on the cover).
parts to put it together are listed below.

its made to use either a AA battery or a USB C charging port, in which case either a lithium AA rechargeable battery or flat battery inside would suffice and provide options.

i included an extension and hole on the end of the actuator as I have yet to find a micro switch as sensitive as the one Dillon uses so some preload weights are required with this bill of materials. i have used a .45 shell on the Dillon version and have tried a 458 SOCOM shell which fits nicely so I might have to add some lead either to the shell or hanging from the actuator, thus the hole.

If anyone has suggestions for a better switch or mods to the files, feel free to comment.

there are two built in shelves to prevent the switch and USB board from shifting and also a shelf on the cover to do the same. some 3M tape will really hold these down as I didn't use mounting screws. I also put in a hole for the buzzer sound to escape, but its really unneeded with the big USB port. that was an afterthought and I just left it in. I plan on using a smaller buzzer in the future.

This is a work in progress but its mostly finalized. i want to clean the aesthetics up a bit in the future.

Sheet metal screws #4- https://www.amazon.com/dp/B0BY4Y1ZNP?psc=1&ref=ppx_yo2ov_dt_b_product_details

USB C charger- https://www.amazon.com/dp/B09FJJBLQ1?psc=1&ref=ppx_yo2ov_dt_b_product_details

Internal lithium battery- https://www.amazon.com/dp/B095VVWTSH?ref=ppx_yo2ov_dt_b_product_details&th=1

Micro switch- https://www.amazon.com/dp/B0BG4YBYJ4?psc=1&ref=ppx_yo2ov_dt_b_product_details

Buzzer- https://www.amazon.com/dp/B07R19JLPX?psc=1&ref=ppx_yo2ov_dt_b_product_details

External battery holder- https://www.amazon.com/dp/B07BXX62JF?psc=1&ref=ppx_yo2ov_dt_b_product_details

3M tape- https://www.amazon.com/3M-38583-Exterior-Attachment-Tape/dp/B00JR4D7AA/ref=sr_1_2?crid=1LV689MFHKWD3&dib=eyJ2IjoiMSJ9.hQfBJXQdMsJoN5Pyd_cjldBO6unLcWcdKJEe9jIB0nhY4_qQ46dbvkgMN31w3idvHSr8EXvKy30Orepan6PLEUGFHoJMgbJCdE_N1LpFOmes21upsnNzquXJ8ysjWge4zNYKFNyLHnhUI_SA73SaoP447uZveRBtOWyu42-CDUETGdWFRA6NKznEqLkupOdOcpLads5fOCOWS1ISYwOx0glFmHvMvWlMRQ1CJ4hnPAT2zHrNrh8TLwi6tfJMdfPkA6HRQLMEZzKlUbXyP9GNjAaXCFJOFbAUCtZVHOnietY.jj1WGTPgGxN4-ApWwNQktBI-d0ZnVNCQnIIgCNimaRY&dib_tag=se&keywords=1%2F4%22%2B3m%2Btape&qid=1716304014&s=automotive&sprefix=1%2F4%2B3m%2Btap%2Cautomotive%2C97&sr=1-2&th=1