small vacuum pump

Where can i purchase a replacement vacuum pump for a rival vacuum sealer vs230

Posted by derricklaw 1 year ago


Vacuum cleaner as wood dust collection?

I was wondering if it is possible to use a vacuum cleaner as a form on wood dust collection in my workshop. What type of vacuum clearer would be the best for this, one with a bag, bagless, whatever. If this is possible, what precautions should be taken to ensure smooth operation of this setup. I'm worried about wood dust possibly clogging up the vacuum cleaner. Any help/ more info/ ideas/ would be great.

Posted by SirMalan 8 years ago


Dyson vacuum parts

Our Dyson vacuum finally broke after 10 yrs but the motor still works well. I've been thinking of using the motor and canister as the base for a shop vac. Has anyone had any experience working with Dyson parts? Any suggestions would be great. Thanks.

Posted by sage729 2 years ago


Kid climbs walls with vacuum cleaners

A boy in the UK uses a couple of vacuum cleaners to climb walls like Spiderman. It's an amazing thing for a 13 year-old to do and... wait a second. This is just a copy of something that was demonstrated on TV in the UK well before this. So let's start over. A boy in the UK shows that you can get some media attention for doing a recreation of something that's already been established as amazing, even in the same country. Pretty shameless. Spiderlad via Inhabitat

Posted by fungus amungus 8 years ago


English Spiderman climbs walls with vacuum cleaner

Jem Stansfield is a great guy. He cobbles together a Spiderman suit with some vacuum cleaners and climbs the outsides of buildings with it. That's just awesome. From the article: "I hope activities like this teach children that if you understand the world around you, you can make it work for you," he said. "Normal boring day-to-day objects can do exciting things for you." This dude is my new hero. And it gets better. His future plans involve driving a car powered by coffee beans. He's like an alternate universe version of Tim Anderson. The first video covers the making of the gloves and the second is a climb up the outside of a building. Link via gizmodo

Posted by fungus amungus 8 years ago


Amps for 12 volt tire inflation pump

I'm trying to attach an AC adapter to a 12-volt tire inflation pump (the kind that plugs into your car's cigarette lighter), then convert it into a vacuum pump for degassing molds. I tried connecting the only 12 volt wall wart I have and it just barely got the motor moving. I'm guessing that the amperage of the adapter is too low. What sort of amps would this unit need to run correctly? Is it even possible to run this thing from a wall outlet?

Posted by Boy Genius 5 years ago


Air Compressor/Vacuum Pump

I have a theory: You have your supply of compressed air. You connect that by hose to one branch of a y-connector. The other branch is connected to a hose that goes into some sort of fluid that you want to move from one vessel to another. The trunk of the y is your exhaust (in theory). So now I give, say, 15 psi out of my air supply and that shoud drag my fluid out of its vessel through the y connector to the destination of my choosing. Would that work?

Posted by flagrantfouler 10 years ago


Vacuum Tube Chess Set

This chess set made from vacuum tubes is pretty stunning. Plug a tube into a square and the top lights up. I doubt that the pins will stand up to very many games of chess, but it is lovely to look at. Vaccum Tube Chess Set via Make

Posted by fungus amungus 9 years ago


Vacuum motor on go kart?

So, I'm fairly new to electric motors. I salvaged a motor from a vacuum. I know that they have high torque. I'm just wondering what kind of weight they could move. For example, if I weigh 225, would it be able to pull me on a go kart?  Thank you!

Posted by jmeservy 5 years ago


Will an air conditioner pump be good for a vacuum evaporator?

I've been wondering if I could use an air-conditioner pump for a vacuum evaporator for making concentrates without destroying some flavor for home brewing and cooking and I'm wondering if I should worry about the water vapor the comes from this. Should I set up some kind of cold trap for the water making some kinda vacuum distiller or should I use something else to drop the pressure?

Posted by sugarworm 5 years ago


What to do with old vacuum tubes?

I recently found a really old tv in a crawlspace at work and I brought it home and salvaged 13 vacuum tubes out of it. I figured I could make some sort of cool project out of them like maybe a mad scientist lamp with LEDs or something. But before I actually start using them I wanted to brainstorm some more ideas of possible projects. So if anybody has any good ideas of cool things to do with vacuum tubes, let me know. Also, just out of a nerdy curiosity I was wondering what exactly vacuum tubes are designed to do, does anyone know?

Posted by cannedham160 9 years ago


Vacuum tube clock kit

This lovely clock is made from a new kit from Adafruit Industries. Once they're back in stock you can get the whole kit for $65 or just the PCB for $15. If you truly want to do everything yourself you can make the whole thing yourself with instructions here.HOWTO make a vacuum fluorescent display clock

Posted by fungus amungus 9 years ago


Electro Magnets

If an electro magnet is suspending something in an vacuum environment, will it act as a medium? (Will sound waves be able to pass through the magnetic field?) Thanks

Posted by Weissensteinburg 11 years ago


stuff to do with motor

I have an old vacuum motor that is really fast but don't have anything to do with it.  Any ideas?

Posted by H20 8 years ago


Vacuum pump voltage?

Today I was dumpster diving and i found an old vacuum so i decided to take the pump out but i made the mistake of not checking what voltage the vacuum runs on, because it also had a spinning component at the mouth of the vacuum. I think the pump works fine because i noticed that tube connecting the mouth of the vacuum and the pump was broke. Is there anyway to find out what voltage it runs on? would standard 120 be ok?The markings on it say 81 b-9 ECP 6500-240 HPU+ 60hz HD10 120 vac 07:07 does that mean it will work off a standard 120 outlet?update: What I am going to do with this motor has been decided. I will be attaching it to the back wheel of my bike with a car battery, i will install some type of switch on the handlebar or add something like a dimmer switch, this would allow me to have the motor on if i want, and i can adjust the speed. Please help fine tune this idea.

Posted by astrozombies138 10 years ago


Vacuum Pump Limit Switch System

Hey Everyone... I'm Alive! I've just been really busy with my senior design project :DSo today I acquired ToolUsingAnimal's vacuum pump on loan. I'm going to be doing some vacuum bagging.... To prevent his pump from blowing out, I need to make a limit switch so the pump shuts down when it reaches full vacuum and then turns back on if some of the vacuum bleeds of somewhere.So the method I cooked up today was to use a syringe with a weight. The weight will pull the syringe open and close a micro switch that turns the compressor on. If there's vacuum, the plunger will be fully retracted and the switch will be open (off position). This method will cost me all of $5 or so (10 cents for the syringe and $4 for the switch).I was just doing some math on how much weight I'll need for different syringe sizes - and it's totally plausible (we're talking less than a pound to 3 pounds depending on syringe diameter).Question - any other suggestions or blatantly obvious/easy/cheap solutions? I know this sounds Rube Golbergian, but it's not nearly as complicated as it sounds (or looks) :D Emphasis on cheap, I just put in an order for roughly $2000 of materials and supplies!

Posted by trebuchet03 10 years ago


HEAT SEAL or vacuum seal

Been looking all over the net for help on this, thought maybe someone here might be able to help. I need to mock up a DVD package for a DESIGN class and wanted to do something based off the Special Edition SAW DVD case in which a red liquid was trapped floating between to layers of transparent, flexible plastic. In this space it could be moved by pushing it through the plastic. So does anyone know a way i could accomplish this on my own? Vacuum sealing? Heat sealing?

Posted by 333Design 10 years ago


I Got a Vacuum Pump

I recently obtained a Vacuum pump from the school (they got it from like a barn or something where it was sitting for like 10 years, so it needed a lot of cleaning, lot of dirt). I'm not sure how strong it is, but it is powered by a 1/2 HP motor (the same motor that I got earlier, I'm just now using the Vacuum pump) and uses pullies to make the torque more around 2HP. Couple of Questions: -It works (I'm not sure how well, if you put your hand over the output and give the pulley a 1/4 rotation turn it generates a noticeable amount of sunction (and sounds like an opening bottle of wine when you take your hand off). -What usually goes bad with old pumps, can I prevent it? -I should probably change the oil, is there a cheap local way of getting some (like some sort of auto oil?) -Do you think there's enough suction to create a vacuum tube. (doesn't have to be precision made, it's for Tesla Coils, think large Vacuum Tubes)

Posted by guyfrom7up 9 years ago


Wanted: Someone to Vacuum form (2) 12"x8" forms

Hello Friends, I am looking for someone who is willing to vacuum form (2) antique headlight buckets for a lighting project. I have the bezel I need "copied" and would like it done in 1/4" material. The headlight bezel is approximately 12" tall and 8" wide and is kinda egg shaped. I cannot seem to locate a local business willing to do this, so I am reaching out to the community to do this. I am in Durham, NC. Thank anyone offering their service, Steve Rogers

Posted by BullCityFirearms 1 year ago


Seeking feedback on a unique vacuum accessory that can hold a mini flashlight!

Hi there! I believe this is the best place for me to ask this question. I just wanted to get your feedback or opinion on this cleaning accessory we are currently developing, the “Flashlight-Holder Vacuum Cleaner Attachment”. This product is a first-of-its-kind vacuum cleaner accessory that holds a flashlight, to provide light directly at the point of use. Please see this 4 minute video to see what this accessory is all about: https://d2pq0u4uni88oo.cloudfront.ne...-h264_base.mp4 The accessory holds a flashlight, to provide a hands-free beam of light exactly where it is needed. As someone who is engaged with cleaning services/ housekeeping or homemaking, would you consider using this kind of accessory? Or would you stick to what you are using right now? Your feedback will be very much appreciated. If you want to know more about the product, just visit http://dupreehouse.com/ Thanks

Posted by AllanDonato 4 years ago


ideas?

I recently took apart an old blender (which was broken, but it turns out it only needed a new fuse) and a vacuum, and i'm left with two motors and the cords to plug them into a wall socket. i left the buttons on the blender so it functions at semi-controllable speeds. i feel horrible not putting them to some kind of use, but i keep drawing a blank on what to do. ideas?

Posted by timeeeee 9 years ago


Motor Acquisition....

I have recently come into possession of a working vacuum cleaner motor (generic: only says 60 hz, 120 V on the side) with cord and switch still attached (also the fins on the motor that created the suction). I can't even find a manufacturer logo on it. Anyways...I am looking forward to using this in a future project. Just as an exercise, in case I am "thinking too small" what would you do with such a motor? It looks a LOT like this one:

Posted by Goodhart 10 years ago


"Organ donors"... or: sources for tube project parts...

The "Vacuum Tube" group needs a first forum topic. Here it is... Sorry 'bout the pun... but I could have used Time to get Organized... Be thankful ;-)Vacuum tubes and parts tend to be rather expensive these days. But there's a good source for parts, and it's often free: old tube organs.I picked up a working 1960 Wurlitzer a couple days ago. It's got:-- full complement of tubes (the mother lode!), including9 (nine!) 12AX7 preamp tubes.2 6L6-GC power tubes1 5U4-GB rectifier(there were other tubes: (28!) 12fq8's but they're not so useful for audio...)-- Huge power transformer-- Large (20-25 watt) output tranformer-- two 16 ohm speakers-- lots of carbon-comp resistors, sockets and other reusables.Total cost--just gas, and a sore back.Even the non-tube organs are a good source of speakers, reverb tanks, pedals, etc. The tank, bass pedals and the volume pedal were from a solid-state Conn organ left on the curb...The bass pedals could be made into a MIDI project, and the volume pedal would be a nice start of a wah, or left as-is. Yeah, they are grungy, but that's easy to fix....

Posted by gmoon 10 years ago


Vacuum Tubes

What kind of vacuum tubes are these? What can they be used for, etc? I found them from an 80's TV.

Posted by tinstructable 7 years ago


Making a 6 volt vacuum pump

I want to make a 6 volt vacuum pump.Is it possible to make a vacuum pump if I attach a  6volt fan and two one way valve (one will suck air and one will emit the air in the environment)?

Posted by Crazynventor 2 years ago


vacuum pump wanted

Hoping someone would have a vacuum pump (manual or electric) they wouldn't mind giving me, hoping to make a vacuum cannon but missing a quite essential part ha ha

Posted by ToggleSwitch 2 years ago


Wow. "Make your own vacuum tube"

This is pretty amazing:Video on making a vacuum tube by hand.(Lets see if Instructables likes Dailymotion videos...)

Posted by westfw 10 years ago


How to make a lab vacuum chamber

I have just buit this vacuum bell jar system form several sizes and with electrical inputs: http://www.youtube.com/watch?v=O91eCB_GvwY

Posted by bubal 5 years ago


Looking for chemistry items/vacuums

Hey guys, I just recently got parts to make my own magnetic stirrer and heating plate for organic chemistry! I don't very well plan on getting a glass blower oven so if  you guys have any glassware somehow, please let me know. If you have old vacuums, a vacuum pump (not submersible) let me know too! thanks!!

Posted by GreenD 8 years ago


Wanted intructable - "Convert an Aquarium Air Pump into a Vacuum Pump"

Hey all - Wanted intructable: "Convert an Aquarium Air Pump into a Vacuum Pump" I know this is pretty simple - probably... as well to add to that a mod... "Convert a Aquarium Air Pump into an Adjustable Vacuum Pump" I'm trying to build something else and would like to see how this is done - i have one shot at one Aquarium air pump and don't want to mess it up. Plus i'd like to know how to regulate the vacuum  - make it with adjustable vacuum pressure if possible - if i even really need to or at least regulate the vacuum pressure so it is not too much if it is after built. I'm sure i could do a google and find all the parts - thinik tank it out and build it... but if you know already how to do it - makes things a tad easier for me. The instrucable even easier to avoid mistakes. thanx - chase -

Posted by -chase- 8 years ago


Vacuum forming heat source

Hi! I am planning to build a vacuum forming machine that does not use a seperate oven to heat the plastic. For my 3D printing hobby I have come across many heated beds, also some on 230v. Could something like this (https://www.ebay.com/itm/30X30CM-750W-220V-Silicone-Heater-3D-Printer-Heated-Bed-Pad-30cm-Thermistor/401257671771?hash=item5d6cd22c5b:g:iVEAAOSwx6pYrp70) with a heat sink be used for such an application? Thanks!

Posted by ttreurniet 10 months ago


VACUUM CHAMBER for DRYING ELECTRONICS

Some time back, it occurred to me that a sufficiently strong vacuum would be useful for drying wet electronics. After all, water boils at lower temps at higher elevations, and in space, water will even boil at 33F ( 1 C) Freeze-drying coffee is another example of using high vacuum to desicate stuff. I hooked up a vacuum pump which had been marketed for bleeding hydraulic brakes and clutches to a pressure chamber for extending the life of tennis balls.  It did not seem to work when I tried rapid drying a damp paper towel. Indeed, my control, another paper towel left out at room temps dried before the one in the vacuum chamber. I think I've heard of repurposing a refrigeration pump to act as a vac-pump. Someday, I may try that, but would prefer not to have to deal with the freon. Besides that, if someone is scrapping a fridge, and I can pick it up free, will the pump be any good?

Posted by Toga_Dan 4 years ago


Challenge: Reynolds vacuum sealer retrofit

Reynolds just put out a new vacuum sealer device for about $10.Vacuum Sealer home pageIt's a pretty neat device, but they've designed it with a flared nose and special bags rather than the small tube most vacuum sealers have. I'd like to be able to use this with regular zip-lock bags without destroying it's ability to work with the custom Reynold's bags. Anyone got an easy retrofit mod for the tip or other suggestion.A bonus ability would be to be able to use it with bags products come in, assuming they only have a small hole. For example, if I opened a bag of nuts or chips, and used a wire sealer to close the bag, I'd like to be able to put a hole in the re-sealed bag and then draw out all the air. The way some sealers do this is by having a circular flap over the hole which allows air out, but closes the hole to prevent air from getting back in. The stretchy gummy material used by magazines to hold samples and inserts would probably work well for this.I think this is an interesting product with lots of possibilities beyond the kitchen. Unlike most vacuum devices which are not portable or designed for cleaning, this one is compact and moddable. I'd like to hear other creative ideas how it could be used.

Posted by infinitemonkeys 10 years ago


Can I turn a Hover mower into a Dog Poo vacuum sucker upper ?

I have an old but working hover mower (Flymo). How could i turn this into a vaccum device to suck up dog poo in my garden ? This isnt the model I have, but it works in the same way.     I can get my hands on plastic pipe duct tape etc, and obviously it would work from mains power.

Posted by Thunderballs 3 years ago


Vacuum Tube Night Light

Hello All, I have four 12AX7A vacuum tubes out of an old guitar amp.  I'm not sure whether they work or not-the sound was extremely poor, but this could have been due to any number of things wrong with the amp, which is gone now.  I saved the tubes, as they still lit up when powered on.  I would like to turn the tubes into some kind of low glow night light/art project, but am not quite sure how to go about wiring them in parallel with one another, or even the correct voltage.  I have no experience with tubes, but would love to start learning, even just the basics...like how to power them up.  How complex a circuit would it take to do this?  Thanks!

Posted by huck alexander 7 years ago


Question Regarding Measurement of Vacuum Pump Air Flow Using Anemometer

Hello everyone, I am new to Instructables and am loving it so far. I was reading through some literature on a piece of equipment we have at work and it requires 18"Hg @ 25CFM. We have flow gauges at work, so it is just a matter of using one to determine the flow but it got me thinking... What is the most effective method of measuring airflow of a vacuum pump without a flow gauge. All I have is an anemometer, a basic understanding of physics and time. So I came up with this method and am looking for some folks to poke holes in it: I placed the anemometer at the end of a 36" piece of PVC with a 1.6" I.D. sealing the anemometer to the PVC to ensure no air gets pulled around the fan of the anemometer. The other end of the pipe is reduced to a 1/4" line (.16" I.D.) which is connected to the vacuum pump. Turning on the vacuum pump yields a steady 3.5MPH (307.98 ft/m)on the anemometer. Doing the math, I come up with 4.3CFM (307.98ft/m*.013962634ft^2).  Unfortunately, I cannot bring a gauge home from work to compare and I cannot bring my set up, as glorious as it may be. So this is more a thinking exercise. So what sort of accuracy would you guys think this 'rig' has? Can you think of some method for me to verify it's accuracy (or, more likely, lack thereof)?

Posted by mmcdonald6 8 years ago


What to do with a Vacuum cleaner ?

What can i do with a working vacuum cleaner that i do not use any more ?

Posted by arylic 9 years ago


Got a Lot of Vacuum Tubes

I just bought a lot of 125 vacuum tubes on ebay for 30 dollars including shipping (the seller didn't list what tubes were there, just said a crate) I got the following (if the same name is listed 2 times in a row, then I got 2): 10JA8 12AD6 12AE6 12AF6 12AU6 12AX4GTA 12BD6 12BE6 12BG6 12C5 12CN5 12CU6 12J8 12K7GT 12RS 12X4 17AX4GT 17BR3 18FW6 18FX6 18FY6 1B3GT 1G3GT 1G3GT 1S4 1S4 1S5 1T4 1U5 1U5 1X2B 21LR8 2BN4 2BN4A 2CW4 2CY5 32ET5 3S4 3S4 3V4 4BQ7A 4BZ6 4BZ7 4BZ7 50B5 5AT8 5AT8 5AT8 5AT8 5BR8 5T8 5T8 5T8 5T8 5U8 5U8 5U8 5U8 654A 6AB4 6AF4A 6AG5 6AG5 6AL5 6AL5 6AM8 6AQ5 6AQ5A 6AS8 6AT6A 6AU6A 6AU6A 6AU6A 6AV6 6AV6 6AX4GTB 6BA6 6BA6 6BA6 6BA6 6BA6 6BE6 6BE6 6BJ6 6BK7B 6BN4A 6BN4A 6BN6 6BQ7A 6BQ7A 6BQ7A 6BQ7A 6BQ7A 6BU8 6BZ7 6BZ7 6BZ7 6BZT 6CB6 6CB6A 6CF6 6CG8A 6CN7 6CY5 6CY7 6CY7 6CY7 6DQ6A 6DQ6B 6EA8 6FM7 6GN8 6H6GT 6J6A 6J6A 6J6A 6S4A 6SA7 6SJ7 6SK7GT 6U8 6U8A 8FQ7 9A8 I'm thinking about making a small amp (below 5 watts) for my ipod, which one of these would be best?

Posted by guyfrom7up 9 years ago


Vacuum tube amp help

I just bought a lot of 125 vacuum tubes on ebay for 30 dollars including shipping (the seller didn't list what tubes were there, just said a crate) I got the following (if the same name is listed 2 times in a row, then I got 2): 10JA8 12AD6 12AE6 12AF6 12AU6 12AX4GTA 12BD6 12BE6 12BG6 12C5 12CN5 12CU6 12J8 12K7GT 12RS 12X4 17AX4GT 17BR3 18FW6 18FX6 18FY6 1B3GT 1G3GT 1G3GT 1S4 1S4 1S5 1T4 1U5 1U5 1X2B 21LR8 2BN4 2BN4A 2CW4 2CY5 32ET5 3S4 3S4 3V4 4BQ7A 4BZ6 4BZ7 4BZ7 50B5 5AT8 5AT8 5AT8 5AT8 5BR8 5T8 5T8 5T8 5T8 5U8 5U8 5U8 5U8 654A 6AB4 6AF4A 6AG5 6AG5 6AL5 6AL5 6AM8 6AQ5 6AQ5A 6AS8 6AT6A 6AU6A 6AU6A 6AU6A 6AV6 6AV6 6AX4GTB 6BA6 6BA6 6BA6 6BA6 6BA6 6BE6 6BE6 6BJ6 6BK7B 6BN4A 6BN4A 6BN6 6BQ7A 6BQ7A 6BQ7A 6BQ7A 6BQ7A 6BU8 6BZ7 6BZ7 6BZ7 6BZT 6CB6 6CB6A 6CF6 6CG8A 6CN7 6CY5 6CY7 6CY7 6CY7 6DQ6A 6DQ6B 6EA8 6FM7 6GN8 6H6GT 6J6A 6J6A 6J6A 6S4A 6SA7 6SJ7 6SK7GT 6U8 6U8A 8FQ7 9A8 I'm thinking about making a small amp (below 5 watts) for my ipod, which one of these would be best?

Posted by guyfrom7up 9 years ago


disk saw + vacuum cleaner = less dust ?

When cutting bricks and concrete with disk saw there are clouds of dust. here is my failed attempt to reduce its amount using a vacuum cleaner instructable anyway ?

Posted by 11010010110 9 years ago


Does nobody modify vacuum cleaners?

Lately I've been looking for vacuum cleaner mods. I've done several Google searches and Instructables searches, and found only this one bag-to-bagless conversion. I expected there to be at least a handful of pages on vacuum cleaner modification on the Web. Does anybody have any suggestions on where to look?

Posted by PointyOintment 4 years ago


Can you buy small vacuum sealing bags?

I'm looking for small(<6x6") Mylar sealing bags, like these but smaller. Are these manufactured? I really don't like making my own small bags.

Posted by JamesRPatrick 6 years ago


How can I modify my vacuum to turn the brush roll off?

I have https://smile.amazon.com/Hoover-Cleaner-WindTunnel-Lightweight-UH70120/dp/B002HFDLCK/ref=pd_ybh_a_14?_encoding=UTF8&psc=1&refRID=GR3CWSF52RR4YEMDSQWV this vacuum. I love it, the Hoover Vacuum Cleaner WindTunnel T-Series Rewind Plus Bagless Lightweight Corded Upright UH70120. I was wondering if anyone had a hack to make the brushroll turn off for hard floors. it currently doesnt have that option. Thank you!

Posted by JuliaM115 1 year ago


Vortex Air / Vacuum Amplifier Help?!

Ok I need something to amplify my shop vac. I am building a cnc machine and I will have a vacuum attached near the cutting head. The problem is the distance of the pipe. The vacuum will barely be strong enough to pick up dust. I have seen some really cool vacuum amplifiers and air amplifiers that just run off compressed air. You get 25x what you put into it, but they want an insane amount of money for a machined metal ring. Here is what I am talking aboutwww.airtxinternational.comhttp://www.airtxinternational.com/catalog/air_amplifiers.phphttp://www.airtxinternational.com/catalog/high_thrust_air_jets.phpIt is all based off of the Hilsch vortex tube. There is an instructable on how to make one. They are just spinning the air to induce the surrounding air to move.There has to be a way to do the same thing or make these for a ton less than what they are charging. Anyone have any ideas?

Posted by Distorted Designs 10 years ago


How Can I Fix a Leaky Gasket on an Old Silex Vacuum Coffee Pot?

I have an old Silex vacuum coffee pot, which is really a superior way to make coffee.  When you heat the pot, the expansion of the hot water and air in the bottom globe forces the water from the bottom globe up into the top globe, where the coffee grounds are.  After a couple of minutes, you turn off the heat, and the air in the bottom globe cools, it contracts, creating a vacuum which sucks the brewed coffee through a filter, back down into the bottom globe. All this depends on the integrity of the rubber gasket between the two globes.  (See second photo.)  If it leaks--no vacuum; and the coffee stays up in the top globe until gravity pulls it down, resulting in overbrewed coffee.  (A big leak will keep the water from even rising in the first place.  A little one just slows or prevents the "drawdown".) My pot has developed a little leak.  At first, I thought the gasket had hardened or cracked, since it's at least fifty years old; but that turned out not to be the case.  I inspected it, and found a little bump right under the flange of the gasket, where it sits on the glass rim of the bottom pot.  I gently sanded this irregularity, thinking I could smooth it out, but it turned out to be a bubble, which popped, leaving a dimple about the size of a caraway seed. I've tried teflon tape, filling the dimple with a tiny dab of Devcon rubber adhesive, putting a bead of the rubber adhesive around the gasket, and a couple of other things, but I only make the leak worse.  (Fortunately, everything I've tried has been reversible.)  Anybody got any ideas for repairing that gasket, short of sealing it onto the pot with silicone caulk, which I'm not willing to do? Thanks for any help! Regards, Jim Crutchfield Long Island City, NY Photos by edgarandron on Flickr.

Posted by jdcrutch 8 years ago


Convert an old canister vac to a harness/backpack vac?

Greetings Instructables Brethren! I've been getting along with all hardwood and no vacuum cleaner for 7 years now, and now with kids, I am admitting defeat, but still can't take that dreaded step into the spiral of ever-shortening planned obsolescence cycles for ever-more-expensive and flimsy junk. I'm looking for a way to turn an old Electrolux or other simple, repairable, and reliable antique canister vac, into a backpack vac. I wanted to do this Instructable myself, but between the 3 kids and being only armed with a dustmop and broom, I haven't got the time to do all the project development! Can someone out there with a few tools and a Monster Hacker / steampunk mentality, convert an old canister vac to a trusty Ghostbuster-style Backpack Duster? It will need a superlong cord, though most of those oldies-but-goodies did come with that.  And if you do this successfully, and can see fit to sell it on the Instructables Store, you probably have your first customer, right here!

Posted by megmaine 6 years ago


What lubricant to refill a fridge compressor with?

Hey all, I just grabbed a compressor from a fridge that had been badly mangled by a bulldozer at a demolition site, planning to make a vacuum pump or airbrush compressor (or both!) Trouble is, I thought the liquid it contained was leftover refrigerant, and drained it all out. I didn't really have a choice, as leftover freon was gassing out of the compressor (thought it had lost pressure, but there was still a little in the compressor) and it was sputtering the oil everywhere. I held it upside down while carrying it home, and when I got it here, it was apparently empty. Then I found out that what I poured out wasn't liquid freon, but actually vital oil that keeps it alive. The compressor runs fine, but I only tried it for a few seconds for fear of destruction. I have many lubricants here, motor oil, 2-stroke oil, bike chain oil, etc. If I'm to dump an oil into my compressor, any ideas on which is the best call, and roughly how much should it take?

Posted by Rectifier 10 years ago


Coanda effect in conjuction with Venturi effect !?

I am still working on my project to create relatively accurate model of a Repulsine. No, I am not one of those free energy nut balls, just curious in old tech ;) As part of my research I came across some statements in regards to lost pieces of the Repulsine. The last remaining model still exists in Austria but noone seems to have to clue what the missing parts looked like. I think the missing parts are a system of nozzles, diverters and a secondary hull - forming a similar system like the Coanda plane engine. There are lots of people still out there tinkering with Coanda lifting devices and trying to get them working. Is there anyone here doing it ??? Would like to exchange some knowledge, tipps, designs and so on. Short term goal is to make working Coand engine with enough thrust / lift to be used at a later stage for a working Coanda plane model. Long term goal to modify it all to incorporate into the Repulsine.

Posted by Downunder35m 2 years ago


Wiring a square D class 9016 GAW-21 vacuum switch to control my 240V vacuum pump

I am confused as to how to wire my vacuum pump to this vacuum switch.  The pump is 240 V single phase and I need it to come on at about 22 inches of mercury and shut off at about 28 inches of mercury.  I have two line leads coming from the pump that need to be switched.  I don't understand the diagram (first picture) that covers the connection terminals.  I think if I can get it wired properly I can set the on/off points using my vacuum gauge and trial/error.  Can anyone help me with this?

Posted by rmandrell59 5 years ago