{"data":{"model":{"id":"267952","slug":"76-inch-loc-precision-avionics-bay-bulkhead","name":"7.6 inch LOC Precision Avionics Bay Bulkhead","authorship":null,"club":false,"excludeCommercialUsage":false,"price":null,"eduProject":null,"ratingAvg":"0E-10","myRating":null,"ratingCount":0,"description":"

7.6-inch LOC Precision Avionics Bay Bulkhead. I design my parts to be replaceable as much as I can. So, nothing is glued on my AV bays. I use lock nuts and lock washers instead.

Components I use:

4-40 threaded rods for the e-match terminals
- To prevent shorting (quick link, etc. could fall across the terminals) out the terminals cover them with tape or use my 3D prints nuts made for this.
  - My 3D printed nuts - https://www.printables.com/model/267924-avionics-bay-terminal-threaded-nut-for-4-40
- Also need 4-40 nuts to hold the 4-40 threaded rods in place.
  - https://smile.amazon.com/gp/product/B000N2YSU8/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
\u00bc-20 Lock Nuts/nuts/wing nuts
Lock washers and fender washers
U-Bolts - https://www.amazon.com/gp/product/B001B1QUWE/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1&pldnSite=1
Charge well hole is 4-40 which will thread into the plastic.
- My charge wells - https://www.printables.com/model/267864-avionics-bay-black-powder-well
Connectors used - https://smile.amazon.com/gp/product/B0188IN930/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
- All of my bulkheads use the same male connectors. AV sled uses female connectors.
As seen in the pictures I use a piece of plywood as a washer on the inside of the bulkhead. This is because the threaded rods are pretty close together for 7.6 inch diameter. May not even need it with high enough infill, but it made me feel better with it there.

I have all of my 3+ inch diameter rockets using the same avionics sled, which is linked below.

https://www.printables.com/model/267822-avionics-sled-for-3in-diameter-rockets-altus-metru

This means I have all of my 3+ inch rockets avionics bulkheads have the same spread between the threaded rods. Which is why I have designed so many bulkheads\u2026I have a lot of rockets.

PLA or PETG work just fine.

","category":{"id":"82","path":[{"id":"48","name":"Hobby & Makers","nameEn":"Hobby & Makers","description":"Are you a maker? Everyone is, be a printer. Upgrade your home workshop and combine different materials and methods of crafting including 3D printing.","__typename":"CategoryType"},{"id":"82","name":"Other Ideas","nameEn":"Other Ideas","description":"Enjoy your time in the workshop and discover excellent ideas of quality craftsman 3D printed concepts for every project you embark on.","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2022-08-28T23:10:01.714679+00:00","firstPublish":"2022-08-28T23:10:01.593390+00:00","datePublished":"2022-08-28T23:10:01.608378+00:00","dateCreatedThingiverse":null,"nsfw":false,"summary":"7.6 inch LOC Precision Avionics Bay Bulkhead","likesCount":5,"makesCount":0,"liked":null,"printDuration":null,"numPieces":0,"weight":null,"nozzleDiameters":null,"usedMaterial":null,"layerHeights":null,"mmu":false,"materials":[],"dateFeatured":null,"downloadCount":6,"displayCount":173,"filesCount":2,"privateCollectionsCount":1,"publicCollectionsCount":3,"pdfFilePath":"media/prints/267952/pdfs/267952-76-inch-loc-precision-avionics-bay-bulkhead-1e95c64a-484f-46e8-8549-25246abebbb8.pdf","commentCount":0,"userGcodeCount":0,"remixCount":0,"canBeRated":false,"printer":null,"image":{"id":"1174599","filePath":"media/prints/267952/images/2383895_131bf6a7-6e4c-4835-a13c-6555a53b4444/20220828_154036.jpg","rotation":0,"imageHash":"VigKDAIpt3oHmXuYtojZg48Ipg==","imageWidth":2268,"imageHeight":4032,"__typename":"PrintImageType"},"images":[{"id":"1174599","filePath":"media/prints/267952/images/2383895_131bf6a7-6e4c-4835-a13c-6555a53b4444/20220828_154036.jpg","rotation":0,"imageHash":"VigKDAIpt3oHmXuYtojZg48Ipg==","imageWidth":2268,"imageHeight":4032,"__typename":"PrintImageType"},{"id":"1174598","filePath":"media/prints/267952/images/2383894_f833b432-cd4e-4d46-a0dc-b53c73572e33/20220828_154123.jpg","rotation":0,"imageHash":"1DgGFIIWyHiwu4Vli4YE5gO1Pg==","imageWidth":4032,"imageHeight":2268,"__typename":"PrintImageType"}],"tags":[{"name":"precision","id":"2687","__typename":"TagType"},{"name":"rocketry","id":"3826","__typename":"TagType"},{"name":"rockets","id":"7731","__typename":"TagType"},{"name":"avionics","id":"8967","__typename":"TagType"},{"name":"bulkhead","id":"24415","__typename":"TagType"},{"name":"loc","id":"68279","__typename":"TagType"},{"name":"locprecision","id":"103026","__typename":"TagType"}],"thingiverseLink":null,"filesType":null,"previewFile":{"id":"1216544","filePreviewPath":"media/prints/267952/stls/2383890_5f2a0c17-0760-40fb-8f15-569ef8eeaec0/76in-loc-prec-bulkhead_preview.png","__typename":"STLType"},"license":{"id":"1","disallowRemixing":false,"__typename":"LicenseType"},"remixParents":[],"remixDescription":null,"__typename":"PrintType","user":{"id":"46625","handle":"jdsmith39_46625","verified":false,"dateVerified":null,"publicUsername":"jdsmith39","avatarFilePath":"media/auth/8118b6ae-7ebf-421b-84c1-eccdd5d589b0.jpg","badgesProfileLevel":{"profileLevel":8,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isFollowedByMe":false,"isHiddenForMe":false,"canBeFollowed":true,"billingAccountType":"personal","lowestTierPrice":null,"highlightedModels":{"models":[{"id":"211475","name":"Avionics Sled For 3+in Diameter Rockets","slug":"avionics-sled-for-3in-diameter-rockets","ratingAvg":"0E-10","likesCount":11,"liked":null,"datePublished":"2022-09-28T13:27:39.752676+00:00","dateFeatured":null,"firstPublish":"2022-06-25T18:15:25.436302+00:00","downloadCount":43,"mmu":false,"category":{"id":"52","path":[{"id":"48","name":"Hobby & Makers","nameEn":"Hobby & Makers","__typename":"CategoryType"},{"id":"52","name":"Electronics","nameEn":"Electronics","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2022-09-28T13:27:39.763575+00:00","image":{"id":"1032702","filePath":"media/prints/211475/images/2106824_e4a1d54d-04d1-4db5-b8b5-134df4b2f747/20220614_155211.jpg","rotation":0,"imageHash":"2CgKDQCKeHCHSHhnh3V4eFVwxaCJ","imageWidth":3024,"imageHeight":4032,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"46625","handle":"jdsmith39_46625","verified":false,"dateVerified":null,"publicUsername":"jdsmith39","avatarFilePath":"media/auth/8118b6ae-7ebf-421b-84c1-eccdd5d589b0.jpg","badgesProfileLevel":{"profileLevel":8,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isHiddenForMe":false},"latestContestResult":null,"__typename":"PrintType"},{"id":"388173","name":"Aerotech 29mm and 38mm Rocket Motor Casting Tools","slug":"aerotech-29mm-and-38mm-rocket-motor-casting-tools","ratingAvg":"0E-10","likesCount":11,"liked":null,"datePublished":"2025-01-26T16:17:01.308802+00:00","dateFeatured":null,"firstPublish":"2023-02-03T20:15:35.234234+00:00","downloadCount":51,"mmu":false,"category":{"id":"64","path":[{"id":"48","name":"Hobby & Makers","nameEn":"Hobby & Makers","__typename":"CategoryType"},{"id":"64","name":"RC & Robotics","nameEn":"RC & Robotics","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2025-01-26T16:17:01.338373+00:00","image":{"id":"4034405","filePath":"media/prints/388173/images/8779064_ca0544bd-0dd0-4db5-8966-be30032e2b3a_3cb28bf1-29c4-49e5-a1bc-f4e318a39deb/img_20250126_102428.jpg","rotation":0,"imageHash":"YRgKDYJ5uZeeiHhvh3d3Zod1b0f2","imageWidth":1600,"imageHeight":1200,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"46625","handle":"jdsmith39_46625","verified":false,"dateVerified":null,"publicUsername":"jdsmith39","avatarFilePath":"media/auth/8118b6ae-7ebf-421b-84c1-eccdd5d589b0.jpg","badgesProfileLevel":{"profileLevel":8,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isHiddenForMe":false},"latestContestResult":null,"__typename":"PrintType"},{"id":"580049","name":"Tube Chuck","slug":"tube-chuck","ratingAvg":"5.0000000000","likesCount":10,"liked":null,"datePublished":"2023-09-19T11:42:52.738004+00:00","dateFeatured":null,"firstPublish":"2023-09-11T22:21:32.475765+00:00","downloadCount":30,"mmu":false,"category":{"id":"49","path":[{"id":"48","name":"Hobby & Makers","nameEn":"Hobby & Makers","__typename":"CategoryType"},{"id":"49","name":"Tools","nameEn":"Tools","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2023-09-19T11:42:52.755088+00:00","image":{"id":"2197072","filePath":"media/prints/580049/images/4631426_8ca25732-05fb-4e91-a7ae-3ffa1d1c7177/pxl_20230510_010837004.jpg","rotation":0,"imageHash":"nRgKDQKIWKBmOMZ4l5eodv8E2E9Q","imageWidth":3072,"imageHeight":4080,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"46625","handle":"jdsmith39_46625","verified":false,"dateVerified":null,"publicUsername":"jdsmith39","avatarFilePath":"media/auth/8118b6ae-7ebf-421b-84c1-eccdd5d589b0.jpg","badgesProfileLevel":{"profileLevel":8,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isHiddenForMe":false},"latestContestResult":null,"__typename":"PrintType"},{"id":"267822","name":"Avionics Sled For 3+in Diameter Rockets Altus Metrum EasyMini x2","slug":"avionics-sled-for-3in-diameter-rockets-altus-metru","ratingAvg":"0E-10","likesCount":9,"liked":null,"datePublished":"2022-09-28T13:27:39.280093+00:00","dateFeatured":null,"firstPublish":"2022-08-28T20:54:04.001026+00:00","downloadCount":31,"mmu":false,"category":{"id":"52","path":[{"id":"48","name":"Hobby & Makers","nameEn":"Hobby & Makers","__typename":"CategoryType"},{"id":"52","name":"Electronics","nameEn":"Electronics","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2022-09-28T13:27:39.297681+00:00","image":{"id":"1174179","filePath":"media/prints/267822/images/2383059_4db54ef2-a8c3-4c45-8c41-7ddebbdd798b/20220828_152945.jpg","rotation":0,"imageHash":"mBgODIJHeIeAeHiIeYbvqNOvig==","imageWidth":4032,"imageHeight":2268,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"46625","handle":"jdsmith39_46625","verified":false,"dateVerified":null,"publicUsername":"jdsmith39","avatarFilePath":"media/auth/8118b6ae-7ebf-421b-84c1-eccdd5d589b0.jpg","badgesProfileLevel":{"profileLevel":8,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isHiddenForMe":false},"latestContestResult":null,"__typename":"PrintType"},{"id":"267864","name":"Avionics Bay Black Powder Well","slug":"avionics-bay-black-powder-well","ratingAvg":"0E-10","likesCount":7,"liked":null,"datePublished":"2022-08-28T22:14:34.702504+00:00","dateFeatured":null,"firstPublish":"2022-08-28T22:14:34.700363+00:00","downloadCount":19,"mmu":false,"category":{"id":"82","path":[{"id":"48","name":"Hobby & Makers","nameEn":"Hobby & Makers","__typename":"CategoryType"},{"id":"82","name":"Other Ideas","nameEn":"Other Ideas","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2022-08-28T22:14:34.718497+00:00","image":{"id":"1174527","filePath":"media/prints/267864/images/2383723_e1d09eb4-9c34-457f-b9da-ff2ef2d9837f/20220828_174309.jpg","rotation":0,"imageHash":"VAgKHAQFk3dXh3h4mHe7a/+95Q==","imageWidth":2268,"imageHeight":4032,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"46625","handle":"jdsmith39_46625","verified":false,"dateVerified":null,"publicUsername":"jdsmith39","avatarFilePath":"media/auth/8118b6ae-7ebf-421b-84c1-eccdd5d589b0.jpg","badgesProfileLevel":{"profileLevel":8,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isHiddenForMe":false},"latestContestResult":null,"__typename":"PrintType"},{"id":"267946","name":"4-inch LOC Precision Avionics Bay Bulkhead","slug":"4-inch-loc-precision-avionics-bay-bulkhead","ratingAvg":"5.0000000000","likesCount":7,"liked":null,"datePublished":"2022-08-28T22:58:51.312525+00:00","dateFeatured":null,"firstPublish":"2022-08-28T22:58:51.310833+00:00","downloadCount":28,"mmu":false,"category":{"id":"82","path":[{"id":"48","name":"Hobby & Makers","nameEn":"Hobby & Makers","__typename":"CategoryType"},{"id":"82","name":"Other Ideas","nameEn":"Other Ideas","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2022-08-28T22:58:51.327017+00:00","image":{"id":"1174576","filePath":"media/prints/267946/images/2383865_cbb30252-ba0e-4f84-9bb4-b0bd45ccb93e/20220828_154638.jpg","rotation":0,"imageHash":"VhgGFIYJlVmUaImWipRKj5b0aA==","imageWidth":4032,"imageHeight":2268,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"46625","handle":"jdsmith39_46625","verified":false,"dateVerified":null,"publicUsername":"jdsmith39","avatarFilePath":"media/auth/8118b6ae-7ebf-421b-84c1-eccdd5d589b0.jpg","badgesProfileLevel":{"profileLevel":8,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isHiddenForMe":false},"latestContestResult":null,"__typename":"PrintType"},{"id":"267931","name":"3-inch LOC Precision Avionics Bay Bulkhead","slug":"3-inch-loc-precision-avionics-bay-bulkhead","ratingAvg":"0E-10","likesCount":6,"liked":null,"datePublished":"2022-08-28T22:58:16.628301+00:00","dateFeatured":null,"firstPublish":"2022-08-28T22:51:05.879566+00:00","downloadCount":13,"mmu":false,"category":{"id":"82","path":[{"id":"48","name":"Hobby & Makers","nameEn":"Hobby & Makers","__typename":"CategoryType"},{"id":"82","name":"Other Ideas","nameEn":"Other Ideas","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2022-08-28T22:58:16.647149+00:00","image":{"id":"1174551","filePath":"media/prints/267931/images/2383790_c0b5d19f-3065-40f8-acce-6daa63e03bd7/20220828_155041.jpg","rotation":0,"imageHash":"mRgKFAhcBnmXiGeHd2dob4X2Vw==","imageWidth":2268,"imageHeight":4032,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"46625","handle":"jdsmith39_46625","verified":false,"dateVerified":null,"publicUsername":"jdsmith39","avatarFilePath":"media/auth/8118b6ae-7ebf-421b-84c1-eccdd5d589b0.jpg","badgesProfileLevel":{"profileLevel":8,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isHiddenForMe":false},"latestContestResult":null,"__typename":"PrintType"},{"id":"267943","name":"4-inch Fiberglass/Carbon Fiber Avionics Bay Bulkhead","slug":"4-inch-fiberglasscarbon-fiber-avionics-bay-bulkhea","ratingAvg":"0E-10","likesCount":6,"liked":null,"datePublished":"2022-08-28T22:55:03.946128+00:00","dateFeatured":null,"firstPublish":"2022-08-28T22:54:43.470565+00:00","downloadCount":13,"mmu":false,"category":{"id":"82","path":[{"id":"48","name":"Hobby & Makers","nameEn":"Hobby & Makers","__typename":"CategoryType"},{"id":"82","name":"Other Ideas","nameEn":"Other Ideas","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2022-08-28T22:55:03.974223+00:00","image":{"id":"1174572","filePath":"media/prints/267943/images/2383851_f32ab3cf-8cf8-4d0b-9623-7aaef894b666/20220828_153720.jpg","rotation":0,"imageHash":"0SgKFIIEdpuDmXd1moighguKuA==","imageWidth":4032,"imageHeight":2268,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"46625","handle":"jdsmith39_46625","verified":false,"dateVerified":null,"publicUsername":"jdsmith39","avatarFilePath":"media/auth/8118b6ae-7ebf-421b-84c1-eccdd5d589b0.jpg","badgesProfileLevel":{"profileLevel":8,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isHiddenForMe":false},"latestContestResult":null,"__typename":"PrintType"}],"featured":false,"__typename":"HighlightedModelsType"},"designer":false,"stripeAccountActive":null,"membership":null},"contests":[],"contestsResults":[],"prusameterPoints":null,"latestContestResult":null}}}