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Type: Posts; User: rrobor

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  1. Replies
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    A timer circuit is the simplest electronic...

    A timer circuit is the simplest electronic circuit there is. You can get a 555 chip for 30 cents and with another 30 cents of parts create a timer pulsing between microseconds to hours. You could...
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    Quite easy. Get a length of the larger size pipe...

    Quite easy. Get a length of the larger size pipe and some pvc pipe glue. And you should have acetone or equiv. Cut a piece off your pipe and cut a slot lengthwise out of that.. File your cut wider...
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    The power socket on a computer power supply I...

    The power socket on a computer power supply I believe from every one i have seen is a kettle type socket.
    Its also a fairly old idea and not so common on the higher output supplies needed to...
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    To add to this. What you must do is understand...

    To add to this. What you must do is understand why wood changes colour. Red gum off the saw has lovely shades of pink. Given time these turn to the red we expect from the species.
    This is...
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    If you are buying a cheap router get one that has...

    If you are buying a cheap router get one that has 2 collets a quarter inch and a half inch. Doing any tough job a quarter shaft can fail. I bought one from Aldi for its adaptabilitty and its a good...
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    For the life of me I dont know hpw you came to...

    For the life of me I dont know hpw you came to that conclusion. Hate is a negative, it doesnt work.
    And no I have no plan to kick the bucket soon. One cancer was 10 years ago, the other, with the...
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    life is a bitch, then you die

    Ok I retired early, I had Rheumatoid Arthritis and the mob I woked for knew my weaknesses. I was an ETU shop steward in a no great deal place, so the union was no help to me. The stress of this sent...
  8. Ebay is a good source for bits. I watched and...

    Ebay is a good source for bits. I watched and waited and got 15m of flexible hose for $25 and bought a 1Hp dust extractor for it from China. The extractor didnt work all that well because it couldnt...
  9. Thread: Electronics O/T

    by rrobor
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    6,872

    Your circuit is OK Ken but I see 2 problems. You...

    Your circuit is OK Ken but I see 2 problems. You would need some form of control on the first regulator to stop issues when the voltage reached a point where it was just on conduction. When that...
  10. Thread: Electronics O/T

    by rrobor
    Replies
    65
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    6,872

    Now this is my simple regulator using a cheap...

    Now this is my simple regulator using a cheap 2N3055 which handles 15A it needs an insulator and to be bolted onto a heatsink. If you require more power, add a very low value resistor in its...
  11. Thread: Electronics O/T

    by rrobor
    Replies
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    6,872

    OO dont like shunts, first problem is you are...

    OO dont like shunts, first problem is you are wasting the power you have produced and second, using a zener the time its liable to fail is on a hot sunny day where the panels are at maximum output....
  12. Thread: Electronics O/T

    by rrobor
    Replies
    65
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    6,872

    Thought about this a bit and its a fairly simple...

    Thought about this a bit and its a fairly simple electronics circuit.
    What you need is a bistable oscillator which can be made from a 555 chip and there are plenty of diagrams on line. In one...
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    In Australia today it is estimated that about 600...

    In Australia today it is estimated that about 600 people die each year due to asbestos. Now it can take up to 40 years before you get caught.
    When I was young garages blew out brake drums with an...
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    I can not claim to be an expert on wood, but I...

    I can not claim to be an expert on wood, but I always believed the red colour of wood was the wood oxidising. IE its going rusty. Work on redgum and you get lovely pinks and the like, but as time...
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    150uF is rather high for a start capacitor so I...

    150uF is rather high for a start capacitor so I think its something slightly different. I built a large roller sander to do a benchtop and needed a motor. I bought a 3 horse cheap Chinese motor which...
  16. Thread: Sad news

    by rrobor
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    2,696

    I get into all sorts of problems with people with...

    I get into all sorts of problems with people with issues like this. At 19 my leg and a speeding car met and I spent a week in hospital
    . In the ward was an old man with bone cancer.
    One night his...
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    If I could sum this thread up, it would be the...

    If I could sum this thread up, it would be the seller one and you zero. Please read back all the posts here and use them as your jury of 12 good men. Well its beyond that and your score aint good.
    ...
  18. Thread: 1 minute

    by rrobor
    Replies
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    1,469

    I think Ashore is a little unfair. I believe we...

    I think Ashore is a little unfair. I believe we should always remember history, but lets look at reality.
    WW1 was faught by generals and the like unsuited for the position. Not my view, just the...
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    Sorry I did read all of this. Correct me if I am...

    Sorry I did read all of this. Correct me if I am wrong but the Item was to be sent that day via Australia post if it was B4 4 PM. Point one. How can that be cancelled the next day, you tell me. ...
  20. Thread: 1 minute

    by rrobor
    Replies
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    1,469

    Can we learn that war is futile when we glorify...

    Can we learn that war is futile when we glorify the past stupidities?
    Galipoli was one of the biggest cock ups war ever created , men were sent to be cannon fodder.
    What in Gods name is the...
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    I bought bandsaw blades from USA, After 3 weeks...

    I bought bandsaw blades from USA, After 3 weeks I contacted the seller and asked what happened. He said he had posted them but would send another lot. I got the blades in 5 days and thanked him.
    ...
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    I dont agree with some of FF statements. I dont...

    I dont agree with some of FF statements. I dont really think it matters much if we are a republic or not. The monarch is a figure head, like the naked lady on the front of a Greek boat, more a...
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    Totally agree with johnc. as to that referendum....

    Totally agree with johnc. as to that referendum. John Howard, love him or hate him was a very smart cookie, he created a referendum he knew would not be acceptable to most. Shame on me, I voted the...
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    No I agree I didnt cost in labour, but being...

    No I agree I didnt cost in labour, but being retired, why would I. Doing jobs like these keeps my from sitting watching telly all day , turning into a vegetable and carking. At my age, nothing to do...
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    Sorry Im a bit of the proverbial Bas---- , I dont...

    Sorry Im a bit of the proverbial Bas---- , I dont give an inch. You can joint with a cheap router from Aldi for $50 and a straight edge. You dont need a biscuit cutter. You can use dowels and make a...
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    I think you worry too much, I built benchtops...

    I think you worry too much, I built benchtops with redgum as you are planning and not had an issue in 3 years. I also resurfaced my computer bench using decking boards and that has not shifted.
    ...
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    This probably is your first major project and it...

    This probably is your first major project and it didnt quite work. Well if you want to work wood, wou are going to do several of these things. Your error was not having a base to hold square, So look...
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    Cripes, lean on experience. Being a Scotsman the...

    Cripes, lean on experience. Being a Scotsman the last night in December is a rather celebrated event.
    Now my old house in Escose was a bungalow with a high pitched roof and 2 bedrooms upstairs. In...
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    Why would Australia want to be a republic. Man...

    Why would Australia want to be a republic. Man its made up with boat people and convicts. How could that set of riff raff run a country. No no far better to let mummy look after you and guide your...
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    People look at issues and say they are to hard....

    People look at issues and say they are to hard. People suggest there will be job losses. They get up in arms and destroy the new.
    Well what is this, Its the industrial revolution in the UK. They...
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    There is a lot of fooling around with this. My...

    There is a lot of fooling around with this. My friend who ran a business involving towing a trailor, was into this in a big way. He built a smacks generator. This is a glass jar with stainless steel...
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    If it is the capacitor, the motor will hum and...

    If it is the capacitor, the motor will hum and poll. If jou grab the chuck and help it turn it should start OK. It does sound like the capacitor, so try that. Remember there will be a bit of gearing...
  33. Thread: linux

    by rrobor
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    2,172

    Microsoft will give you a new serial if your...

    Microsoft will give you a new serial if your computer has crashed or you upgrade your mother board. You have to phone em up and some snooty bloke quizzes you before you get it. Another tip is do...
  34. Thread: linux

    by rrobor
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    2,172

    The update from Microsoft can also do several...

    The update from Microsoft can also do several other things and has caused problems with many legal computers. The latest version of windows uses your own computer to check if your program is correct...
  35. Thread: linux

    by rrobor
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    2,172

    I plan for a wipeout with a virus since one...

    I plan for a wipeout with a virus since one killed my hard drive years ago. Came from a scam on Ebay where I bid on a bogus article.
    There are many drive cloners you can use, some free. So its...
  36. Thread: Red Gum bar top

    by rrobor
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    My choice for this would be Organoil hard...

    My choice for this would be Organoil hard burnishing oil.. But please remember to treat the underside exactly the same as the topside. I have used dewaxed shellac and to be honest I have spilled wine...
  37. Your theory is OK as in essence you are only...

    Your theory is OK as in essence you are only adding an overwind to boost voltage. But if you look at the transformer, the physics of the thing suggests that the flux in the core will be in the wrong...
  38. You know life is full of those little bits of...

    You know life is full of those little bits of knowledge that fills your head. So much so that there comes a time where your brain swims with junk and the stuff you need seems harder to remember.
    So...
  39. I would question why anyone would view the...

    I would question why anyone would view the results published in Choice magazine. Many yeara ago Philips invented a system for stereo sound in TV, In UK this was the accepted system. Now choice...
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    A mistake is a thing you got wrong more than...

    A mistake is a thing you got wrong more than once. Doing a silly and learning from it is how you learn.
    I guy posted in here about how you should use a router and complained there was no...
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    I got one through the post, said came from Spain...

    I got one through the post, said came from Spain but postmark was Portugal Usual Nigerian type rubbish. So how do they get your name and address, But Hey that lady with heart cancer, aint she...
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    I would use casting and embedding resin, get it...

    I would use casting and embedding resin, get it at bunnings, its clear so you colour it to desired with concrete oxide which comes in small containers. I have used this stuff out of a syringe ( go to...
  43. Bought one, $25 bucks from memory. . Used it to...

    Bought one, $25 bucks from memory. . Used it to cut steel then for ceramic tiles. Did a lot of work. Mate was doing kitchen, went on loan. Then I did my kitchen. I was 99% done then the begger died....
  44. Thread: fluro lighting

    by rrobor
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    2,608

    Reading this, RC is correct. You could have a...

    Reading this, RC is correct. You could have a strobe effect, but it would cause you little discomfort unless you had other conditions. At the age I suspect you will find strobing to be an annoyance...
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    People in India who cant pronounce my name but...

    People in India who cant pronounce my name but want to give me a free phone.
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    As I said, it depends on idle time. If its a...

    As I said, it depends on idle time. If its a couple of weeks smear the top with grease then glad wrap it. It takes 10 mins to clean with turps but its very cheap and works. If its only a day or so, a...
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    I have the same issue. I have a 6 inch jointer...

    I have the same issue. I have a 6 inch jointer and a reasonably good cast iron top table saw. Between projects it sits idle and in the cold of country Victoria my roof drips after a cold night. My...
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    Its all a bit of a wank . If you know your...

    Its all a bit of a wank . If you know your electrics, you know there are issues hitting things with a megger then saying they are OK. . Tagging is for idiots, it gives them their salvation. It is...
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    Now my misses bought a benchtop for the computer....

    Now my misses bought a benchtop for the computer. It was plastic wrap. In time it peeled and it finished as a craftwood top. Toi cut a long story short, I milled boards of Merbeau,which were sold as...
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    I find it all so hard. In Scotland you can find...

    I find it all so hard. In Scotland you can find some magnificent Douglasses and you can find some shocking knotty pine. As a kid I remember a forrester with a .22 rifle shooting down pine cones of a...
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