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  • Veewee111 commented on bennelson's instructable Passive Solar Garage Door3 months ago
    Passive Solar Garage Door

    Try this Youtube video just before the 3 minute mark:https://www.youtube.com/watch?v=N6QOZGgbj-gHardware cloth which is a heavy duty window screen material with quarter inch holes thru keeps the plastic from possibly just flopping thru the hole. Found that the much smaller opening standard window screen material cut down the air flow too much.Personally wanted a little help from gravity for a bit more positive close of the valves, so built four sided boxes (about 1/4" smaller) to fit into each hole thru the wall. Installed a frame inside the box at about 40 degrees laid back with the hardware cloth and plastic valves over that. Also put a flange on the four sided box so that the whole contraption can be sealed to the wall opening with a little foam sealing tape you can get at an...

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    Try this Youtube video just before the 3 minute mark:https://www.youtube.com/watch?v=N6QOZGgbj-gHardware cloth which is a heavy duty window screen material with quarter inch holes thru keeps the plastic from possibly just flopping thru the hole. Found that the much smaller opening standard window screen material cut down the air flow too much.Personally wanted a little help from gravity for a bit more positive close of the valves, so built four sided boxes (about 1/4" smaller) to fit into each hole thru the wall. Installed a frame inside the box at about 40 degrees laid back with the hardware cloth and plastic valves over that. Also put a flange on the four sided box so that the whole contraption can be sealed to the wall opening with a little foam sealing tape you can get at any hardware store.Still need to do same angle back improvements to the upper vents, and seal/insulate the outer box better, but have too many other priorities that are much more pertinent right now. Next time it is sunny here in the PNW of USA will try to remember to make a video of the vent here in action and pull it out for better show and tell. Then post it to Youtube and a link to it here.

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  • Veewee111 completed the lesson Light Bulbs in the class LEDs and Lighting Class5 months ago
  • Veewee111 completed the lesson Welcome to CNC in the class CNC Class1 year ago
  • Veewee111 commented on jimustanguitar's instructable De-Rust Your Old Table Saw2 years ago
    De-Rust Your Old Table Saw

    It would be interesting to know how much percentage of acid the stuff you used was. Coca Cola has phosphoric acid in it as most colas do, but in a very low percentage. Just like onions have a bit of sulfuric acid in them to cause your eyes to burn, but I would not refill a lead acid battery with just onion juice! You can also extend the acid working time by applying a coat of phosphoric acid, and cover with paper towel. Then coat again the paper towel with acid and cover over with the plastic wrap. The towel will act like a sponge. Plus works well with any non-jellied acid to work on vertical or inverted surfaces.

    Just to be clear, Ospho, Naval Jelly, and most other rust removers have same phosphoric acid in them as a primary rust remover. NJ just has a jelly added component which is great to have if you are attacking rust on a vertical or even inverted surface where an non-jelled acid would just flow off. We got our acid (75% strength) from a chemical supply shop in Seattle for a lot less than the brand name liquid acids at the hardware store. While using a phosphoric acid to remove rust takes more time than say to do sandblasting, the acid will remove only the rust and none of the steel.

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  • Veewee111 commented on jimustanguitar's instructable De-Rust Your Old Table Saw2 years ago
    De-Rust Your Old Table Saw

    A phosphoric acid rust remover chemical treatment is great, but you can get a coating of it to work better and longer by laying plastic food wrap over the acid on the item and leave over night. The plastic keeps the acid from drying out so it will work longer. The cooler the weather the better and longer it will work, have gotten it to stay wet and work for days in 50 F weather. During Summer hotter weather it will dry out a lot faster, but doing it over night helps to off set the heat of the day. As for WD-40 it is a good water displacer and OK rust penetrator, but because it does the latter it is way too thin of oil for long term rust protection. It will evaporate off all too soon. Have seen it fail over a weekend leaving rust on a milling machine in an air conditioned shop.

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