Edge Collective

35. Miscellaneous projects

Broken wire detection, trailer, pc fan filter, DIY boots

Broken wire detection

$35 Tone generator kit

PC Fan filter box

https://itsairborne.com/the-mini-pc-fan-cr-box-975d0b069f4c

Nice build instructions for 20" setup, with evaluation by Rob Wissman for different configurations:

https://itsairborne.com/building-a-pc-fan-corsi-rosenthal-box-68e7cd1ca570

-- seems as though 6 fans on opposite sides, or above and side, get about 280 CADR (cfm)

Comparing performance of box fan and pc fan filter boxes:

https://www.texairfilters.com/comparing-the-performance-of-corsi-rosenthal-boxes-made-with-box-fans-and-pc-fans/#:~:text=To%20check%20the%20%E2%80%9Cthrow%E2%80%9D%20factor,to%20%E2%80%9Cdistribute%E2%80%9D%20the%20air.

luggables https://www.cleanairkits.com/products/luggables

CADR of 500 CFM:

Other articles by Joey Fox: https://itsairborne.com/building-a-pc-fan-air-purifier-using-filterboxbuilder-com-8075bfbd6b4c

Foam weatherstripping https://www.amazon.ca/s?k=1%2F8+Inch+Thick+Weather+Stripping+Foam&i=industrial&crid=3QWSJMQNCS8J4&sprefix=1%2F8+inch+thick+weather+stripping+foam%2Cindustrial%2C131&ref=nb_sb_noss

Thu 12 Dec 2024 09:27:10 PM EST

Trailer design

Mon Dec 30 07:20:23 PM EST 2024

Nice example of trailer frame framing and paneling and rubber roof and first trip

note: the sides are aluminium sheeting

PC Fans

Delta 120mm Noctua NF-F12 3000rpm 109.8 CFM at mo

Which fan to get for a corsi box: https://www.reddit.com/r/Masks4All/comments/vyeln8/which_fan_to_get_for_a_mini_corsirosenthal_box/

assessment of corsi with single filter: https://x.com/DavidElfstrom/status/1433521867948797953?s=20

Fri 20 Dec 2024 07:17:33 PM EST

nice kit designed around 16x25x1 filters ... 5 fans tall, 2 fans along top:

filter box builder: https://www.filterboxbuilder.com/

good thread on pc fan air filters here -- suggests that the 'PST' option for pc fans allows them to be daisy-chained ...

great 'mom' post on building a pc fan air filter here

do personal air cleaners work? evidence suggests that they don't really, unless held right up to your face (maybe) https://itsairborne.com/do-personal-air-cleaners-work-f3356c85ef12

nukit night market https://cybernightmarket.com/

easy to build modular pc fan system here

clean air kits designs here

six fan pc fan corsi box here

very nice design to follow for 6 fan p14 pc box here: https://itsairborne.com/pc-fan-corsi-rosenthal-guide-a611dabf7e0c

circuit for controlling pwm for higher voltage device here

Sat 21 Dec 2024 07:01:24 PM EST

dental appliances

how to wear an ortho-tain device: https://compendiumlive.com/2022/01/efficacy-of-preformed-sleep-and-habit-appliances-to-modify-symptoms-of-sleep-disordered-breathing-and-oral-habits-in-children-with-focus-on-resolution-of-mouth-breathing

sleep posture https://www.youtube.com/watch?v=WeJrU-VJGfg

Ham radio

TD-H3 review here

Stamen toner maps

link to documentation here

DIY Boots

Sat 11 Jan 2025 08:26:15 PM EST

Trails in Waltham

Beaver Brook and Surrounding here

DIY Phone

electronoobs keyboard here

Ringo phone kit here

Tiny Home on Wheels

16" on center

Camper build series

FRP

https://boreascampers.com/blog/fiberglass-vs-aluminum/

FRP

XPS

extruded polystyrene https://topolo-rv.com/xps-sandwich-panels-for-rv/

34 mm of foam

https://topolo-panel.com/product/30mm-interwoven-pattern-xps-foam-sandwich-panels-for-rv-interior-walls/

https://steemit.com/tinyhouse/@canadianrenegade/tiny-house-episode-2-framing

Structural insulated panels (SIP)

https://rockymountaintinyhouses.com/sips-vs-stick-framing-for-tiny-houses/

EPS foam is stable once cured, no off-gassing

FP Ultra Lite @ Home Depot

straightforward, plywood-only design [here]()

Woodworking for mere mortals https://www.youtube.com/watch?v=EwJI06iyI4I

This is the key video to work from -- Living Our American Dream, Square Drop Camper Build Part 2:

25% long covid in kids https://x.com/danaludwig/status/1884919262135148678

https://www.nature.com/articles/s41598-022-13495-5

low-budget off-road camper https://www.youtube.com/watch?v=NBltrAEoGHM

another nice plywood setup https://www.youtube.com/watch?v=FS_uWkfUpaA -- part of a great series

yet another good plywood setup -- paneling caulk to supplement the glue https://www.youtube.com/watch?v=4lD_obdALDg

Building a wooden micro camper https://www.youtube.com/watch?v=HH2NAY9Up8c

rubberized coating for the bottom of the trailer

uses premium 1/4" plywood

maybe simplest just to do stick frame with 2x2's as per great video series here

Tue 04 Feb 2025 11:07:44 AM EST

Another nice 2x2 frame example: https://www.youtube.com/watch?v=zfsXUi-o3Bg -- with equations!

Sat 29 Mar 2025 08:51:08 AM EDT

Dewalt off-grid charger setup

Sat 05 Apr 2025 09:22:25 AM EDT

submersible depth sensor wiki here

Sun 06 Apr 2025 09:03:13 AM EDT

Description of the measurement board for the depth sensor here

Mon 14 Apr 2025 05:21:36 PM EDT

Diagonal braces

Sat 10 May 2025 10:57:19 AM EDT

Looks like easiest way to get serial connection via iPhone is via a serial to bluetooth adapter

Thu 05 Jun 2025 08:30:51 AM EDT

The schooner i'd booked with in gloucester is here: https://www.maritimegloucester.org/schooner-ardelle

Mon 30 Jun 2025 07:13:59 PM EDT

Spent a few hours working on the 11ty setup. No great success, but learned a little more.

Definite interest from folks in an outdoor-oriented afterschool program.

format of uart in cpy is tx, rx (cf https://learn.adafruit.com/circuitpython-essentials/circuitpython-uart-serial

i successfully used 06 for tx and 08 for rx

Lots of good footprints here: https://gitlab.com/edgecollective/neighborhood-mesh/-/tree/main/luccioloa_wide/lucc.pretty?ref_type=heads

Keyboard is here

Dimensions are 88x54 mm

side buttons are PTS645V

todo: get dimensions right, assign pins, place holes, route

Mon 30 Jun 2025 10:46:23 PM EDT

successful therapy for Covid long-haulers https://x.com/AlbaDocherty/status/1939787396666585596

Tue 01 Jul 2025 10:34:12 AM EDT

Grove connector viz https://cdn-learn.adafruit.com/assets/assets/000/078/696/medium640/sensors_grove.jpg?1564349650

Raspberry Pi headless quick start https://learn.adafruit.com/raspberry-pi-zero-creation/install-os-on-to-sd-card

rpi connect troubleshooting https://www.raspberrypi.com/documentation/services/connect.html#enable-remote-shell-at-all-times

raspberry pi connect https://connect.raspberrypi.com/devices

connection available in max 5 minutes

Wed 02 Jul 2025 12:46:21 PM EDT

Datasheet for switch https://cdn-shop.adafruit.com/product-files/805/C223-002_datasheet.pdf

Fri 04 Jul 2025 03:21:57 PM EDT