How to make my garage roller door work on an automatic electrical opener?

We installed a garage roller door ourselves. However the upper end of the garage roller door is not straight. The middle part of the upper end is bulging out and lower than the two ends that is attach to the two end wheels. It works fine manually. However when we installed the electrical automatic opener. It works on opering the garage door, but when we try to close the door, the door unroll on the shrift instead of coming down. Please let us know what is wrong. Is it the tension of the spring? What is the easiest way to fix it?

Question by VickiZyznik   |  last reply


how can i connect photo interrupter and dc motor to arduino l293d?

Im making a model of roller door garage opening system and will be using the following componentsmotor - http://www.jaycar.co.nz/productView.asp?ID=YG2730&keywords;=motor&form;=KEYWORDinterrupter - http://www.jaycar.co.nz/productView.asp?ID=ZD1901&keywords;=interrupter&form;=KEYWORDarduino - L293dI need help inorder to connect the motor and interrupter to the arduino which should run the motor in both directions. Basically the motor should rotate the shaft in both directions to open and close the garage door, the purpose of interrupter is the let the motor know that the door is closed or open and i need suggestions as to what i should be using as sensor which could detect any object interrupting the closing of the door and stop the motor. If you suggest me a sensor please also tell me how to connect that sensor to the arduino

Question by pavan5859   |  last reply


Which glue to create massage roller? How to do the seam?

In order to create a firm massage roller, I'd like to glue a piece of (foam) yoga mat around a short pvc drainage pipe. Would love advice on - 1. Which glue to use between mat and pipe? and between the mat ends? 2. How to not have a bump where the mat ends meet? Thanks!

Topic by mirileh   |  last reply


how to build a mount to hold a a roller wringer for drying clothes?

I recently purchased a roller wringer, but having trouble finding a place to secure it to which will remain stable while i crank. The oval washtub i have id small around 30quarts, it fits , i use a piece of wood so the clamps aren't  on the washtub.. however the tub id too light weight and falls over if there is no water or clothe in the tub.i will truy and edit this later with a picture and measurements, but off hand i think between the screw clamps it is 14 inches,  i would really like ti mount in on my bathtub, outer rim which is 6inches.,since i would  have no stability and movements.he vendor i bought ot from said it was normality monuted on a upside down T shaped wood setup, i am not sure what that means. i also  don't want to get a bigger wash basin, since i l live in an apartment and space is really limited/ these are the specs from amazon " Clamps open to 1 3/4". The wringer's metal frame size is 15.5" wide. With the crank handle attached it extends the length to 29". The frame height is 8.5" but extends to 10.25" counting the tension screw knob on top. The metal frame is 2" deep with a 6" drip tray the slides into the frame under the rollers. The usable inside width is 11.25" from one side of the roller to the other. Weighs about 15 lbs assembled."

Question by escapefromyonkers   |  last reply



Can you make a clothes wringer?

I would love to have a wringer for use when dying fabrics, but just can't afford to buy a new one. The antique wringers often have damaged rollers, but they can cost as much or more than a new one.

Question by dulciquilt   |  last reply


(newsletter) Chalkboard Table, Dead PC Aquarium, iPhone Macro Photography

  Chalkboard Table Dead PC Aquarium iPhone Macro Photography Fakeaccino Hybrid Pipe Bed LED Jellies Hard Drive Light Switches Free Motion Cycling Rollers Reuse Nespresso Capsules Hard Drive Instrument Steampunk Shutter Shades Modify a Mandrel Guides Solar Panels Desserts Arduino

Topic by fungus amungus 


Cheap skate automotive painting question!?

I have a 73 volkswagen transporter type 2 microbus AKA hippy van and I am planning on painting it orange and white. I was just wondering what the best methods would be and such any advice would be much appreciated. Im planning on just sanding it down and using rustoleum to give it a nice cheap paint job 1. Can I paint the rims as well with this paint http://www.homehardware.ca/Products/index/show/product/I1821684/name/paint_alk_rust_trem_green_3_78l 2. Should I use rollers, brushes, or a spraygun to do it? 3. how would I go about prepping rims for painting?

Question by CrawdadMan   |  last reply


LED advice

So, i'm a pretty avid fan of our local roller derby team (HKRG BABY!), and i belong to a group of super fans who focus on doing a lot of weird crafting and costuming and other such insantiy for the bouts. so, i'm wanting to make some pretty fancy signs for next year's derby season that will  light up. i've got some plans to use some EL wire/tape and the accompanying equipment but i've also got some other sign plans that would probably be cheaper/easier to make using LEDs instead. so, basic premise is to have a sign that would be able to light up some cut out letters separately and sequentially. i know how to make the sign itself so that's not the issue, what i need is a method to cheaply and easily make the letters light up in sequence. so it's a 3 letter sequence (let's use D O A as an example) that progresses at the normal speed that you would imagine a large group of people chanting a 3 letter call sign to go. so the D would lights up for a second or two, one-two second pause, O lights up for a second or two, one or two second pause, then the A for a second or two, lather rinse repeat. i'm imagining that each group of LEDs for each letter would be wired in series, then each group would be wired to whatever circuit would be needed to make the lights cycle. i'm not sure exactly how many leds will be needed per letter, but maybe between 10-20 of them per segment? i'm going to have several of these types of signs (all 3 syllable chants) so i'd like it to be something that's easy to repeat and not terribly expensive (i'm a derby nut, but there is a line where cost kind of gets stupid)

Topic by crapflinger   |  last reply