> For the complete documentation index, see [llms.txt](https://irnas.gitbook.io/opencollar/-MDJCI9OmpOqWrQzjNIR/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://irnas.gitbook.io/opencollar/-MDJCI9OmpOqWrQzjNIR/manufacturing/lion-tracker/cheetah-collar-payload-primary-battery-8pcs.md).

# Cheetah Collar Payload (primary battery)

Step-by-step production process.

## Electronics

1. primary testing
2. add GPS antenna 
3. GPS antenna tuning (1592 MHz in air)
4. add tag extension 21,4 mm + tag (don't connect ¨batt¨ pins)
5. tape underneath the tag to protect holes for programming from the resin
6. add EMI shield (temporarily attached in one corner)
7. battery 3-pack assembly (3x Saft-14250, 3mm x 0.1mm welding strap)
8. remove all components from the top part of the board (above the EMI shield/next to antenova)
9. add zero-ohm resistor (next to antenova)
10. add foam protection - antenova (12x12x17mm) (note: should be added at the very end)
11. break off the charger

## Mechanics

### Enclosure

1. plastic enclosure production 
2. washing of the enclosure
3. screw holes indentation on attachment plates
4. polishing the attachment plates 
5. engraving of serial numbers (laser parameters: power 30%, speed 250 mm/s)

### Resin casting

1. Electrolube PU resin UR5528
2. cca. 31g/piece

### Engraving

{% file src="/files/-MFeRa1Anzsa28asSvQY" %}

### Collar

1. TPU leather flat belt production (BioThane Granite 230 TPU Coated Webbing, colour TN232)
2. width: 38 mm
3. length: 0.6 m
4. logo engraving (cutting: power 100%, speed 10 mm/s, scanning: power 40%, speed 250 mm/s)

{% file src="/files/-MRPW5qzuZeSoorSy8nr" %}

## Assembly

![battery 3-pack (Saft-14250) ](https://264302523-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MAfxKpHe9the60UYjxl%2F-MB8aZus-Jvrno0ZXtyY%2F-MB8amRhojSSk57Brl45%2FDSC05248.JPG?alt=media\&token=896047b6-1546-4dbc-b6f3-20c5b716a193)

![step 8: battery pack assembly](https://264302523-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MAfxKpHe9the60UYjxl%2F-MB8ZRN1c3HxVDyuoxM1%2F-MB8ZxKD0HeNCUggljZL%2FDSC05204.JPG?alt=media\&token=d3575750-5cce-414b-a46f-2a0d2a2e08a1)

![](https://264302523-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MAfxKpHe9the60UYjxl%2F-MB8ZRN1c3HxVDyuoxM1%2F-MB8aCdUQFkDxP9Xe4W8%2FDSC05215.JPG?alt=media\&token=48202a21-f6a2-4e58-bc7e-fb224581c9af)

![step 9: remove all components from the top part of the board](https://264302523-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MAfxKpHe9the60UYjxl%2F-MB8ZRN1c3HxVDyuoxM1%2F-MB8aIpsfgEE0RQS3MvM%2FDSC05216.JPG?alt=media\&token=c4e8c677-45f2-44c4-8c72-6a416db442f8)

![step 10: add zero-ohm resistor](https://264302523-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MAfxKpHe9the60UYjxl%2F-MB8ZRN1c3HxVDyuoxM1%2F-MB8aVsGqNRIk-yYrtSO%2FDSC05219.JPG?alt=media\&token=d437cf6e-8d11-4b65-9e53-6937ed8aec66)

![](https://264302523-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MAfxKpHe9the60UYjxl%2F-MSSzhKifXTpCnClyS9c%2F-MST0xMO3TB8mfyH_Bpa%2FIMG_20210108_084646.jpg?alt=media\&token=c78aff4c-afdc-46a4-b0fb-9819c45446d8)

![](https://264302523-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MAfxKpHe9the60UYjxl%2F-MSSzhKifXTpCnClyS9c%2F-MSSzzsO1C8VGia_BO9_%2FDSC05502.JPG?alt=media\&token=94f2738d-a642-40ec-b03c-b919ddfcbd01)

![](https://264302523-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MAfxKpHe9the60UYjxl%2F-MSSzhKifXTpCnClyS9c%2F-MSSzzsQNbZupDPI74ht%2FDSC05515.JPG?alt=media\&token=657d5e16-0085-432a-81f6-45a4c1c08faf)

![](https://264302523-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MAfxKpHe9the60UYjxl%2F-MSSzhKifXTpCnClyS9c%2F-MSSzzsNw8iQKl9ydGTZ%2FDSC05524.JPG?alt=media\&token=ab776b7f-3c1f-47e8-a054-3741a8e9bd7c)

![plastic enclosure with logo and serial number engraving](https://264302523-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MAfxKpHe9the60UYjxl%2F-MBDDcpTmBhZ7c-4xltP%2F-MBDPtOqIyjkBo8R1HWq%2FDSC05293.JPG?alt=media\&token=ac2218ac-ae82-46b2-8b12-7699e8de2c35)