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  1. Dazza

    Making an electric furnace.

    This furnace is for melting aluminium, I was just about ready to start construction, useing gas LPG/propane as the fuel, then I came across a few backyard hobbyist foundrys, that use electric powered furnaces. So now I think an electric furnace is the way to go, but I need some help please :)...
  2. Dazza

    Reduce 12vdc to 6 v dc

    Hi Ante, Yes that's right, this is for warming up your hands on those cold winter mornings ;D ;D ;D. The right wattage resistor should handle the heat for this short period of time? Maybe two 10 watt resistors for each glow plug, then mount them to a basic heat sink, a small sheet of...
  3. Dazza

    I am not receiving topic notification.

    Is anyone having this problem? I have experienced problems before, with mail taking a couple of days to come through at times, probably due to problems with my Internet provider but I don't think this is the problem, I am receiving all my other usual e-mail.
  4. Dazza

    Hobby lathe, metal turning.

    Hi Ante, Beer cans are not a very good choice, about 70 percent is waste slag which is skimmed off the top of the molten metal. Cylinder heads are good, because you know that they are the type of aluminium that is use for casting, but the biggest problem is breaking them up into small pieces...
  5. Dazza

    Dome Lamp Dimmer

    Nice work Alun :), Do you have the PCB pattern that you can post. I have no problems making a PCB from scratch, I just think it would be a great little project for a beginner 8).
  6. Dazza

    Reduce 12vdc to 6 v dc

    Hi, Why not use a resistor on each glow plug to drop the voltage, then use a timer circuit to supply power to the glow plugs via relays, you only need around 5 to 10 seconds depending on your climate. The resistor will only need to withstand the current being drawn through them for that short...
  7. Dazza

    Make a Microwave oven on a small-scale

    Hi Alum, Thanks for the explanation :), and the safety warning very interesting. I met a guy up north recently when I was on holidays, he was working on a project that involved using microwaves to super heat water to drive a combustion engine. He tried to explain to me how he produced the...
  8. Dazza

    Hobby lathe, metal turning.

    Hi Ante, Thanks Ante, yes that's the same guy with the foundry, the link I posted above ;). I have about 90 percent of the materials needed for the foundry. The ingredients needed for the refractory were very hard to find in my area. The heat will be on soon ;D, this project is bringing back...
  9. Dazza

    Need help with really simple thing!

    Hi hyaku_ You do realize that you have a NPN(Q1) and PNP(Q2) transistors?. C1 is an electrolytic capacitor polarised,(+ and -). D1 and your LED are also polarised. If you have connected one of your transistors incorrectly it may be damaged. More than likely you have made a connection error...
  10. Dazza

    Adams Motor Project

    Hi I agree theoretically it's not possible. Although what I believe is, there are other forces phenomenons that we do not understand or realize exist. Thinking outside the box, and putting aside what we have been told is fact, has proven fact to be fiction in man's history many times ;D, I...
  11. Dazza

    Hobby lathe, metal turning.

    Hi Ante, mixos, I think I will just start building it to the scale that I want, then worry about the Hp that I'll need later 8). Molten aluminium will bounce off of your skin it wont stick, but it is no fun when it goes into your boot, believe me I no :o. Thanks for those plans mixos very...
  12. Dazza

    Hobby lathe, metal turning.

    Hi Ante :), Well I decided to go a similar path to this guy(http://www.backyardmetalcasting.com/index.html) I have worked in a foundry and I pretty much no the whole process, so it makes sense to me to make a small foundry, then go on to make the equipment that l will need . A series inventor...
  13. Dazza

    Make a Microwave oven on a small-scale

    Hi, Alum, Ante Thanks for the info and comments Alum :), yes of course sonar ::). Yes salt does increase the hydrogen production, but using such additives only creates other problems in my project, which is the reason why I'm trying to find an alternative solution, if I can at least find a way...
  14. Dazza

    Car Fuel Pump Amp Rating for Household Power Supply..

    Hi, Why not just use a lead acid car battery, then when you are finished use a standard car battery charger to recharge it. If you already have a battery charger, it may prove to be a cheaper alternative. The only downside is how long the battery will last before needing to be recharged. This...
  15. Dazza

    Make a Microwave oven on a small-scale

    Hi Alum,EnigmaOne, I'm wanting to experiment with microwaves and the resonating affect upon water molecules, to try to increase the production of hydrogen in conjunction with electrolysis. I don't need a great amount of microwave energy for experimenting. I am new to Electronics and the...
  16. Dazza

    Electronic Compass

    Hi Siddharth, I think that would be a very interesting project to take on :D, although I think it would be difficult to make an electronic compass, that could improve on the simplicity and reliability of a mechanical compass. I know which one I would choose, if I was heading into the outback...
  17. Dazza

    Make a Microwave oven on a small-scale

    Thanks for your reply Enigmaone :), I was hoping, but didn't think it would be as simple as scaling down a magnetron :(. Going by what you have said, I think it would be a task far greater than I could hope to achieve. Maybe it would be a better option, to scale up my project to suit a...
  18. Dazza

    Construction design!

    Well my first thoughts were, what a monstrosity :o. But then I realised it appears that every component there has a function, I can't help to be impressed 8). Although I do feel a kookaburra would have been a better component choice, its performance is far more superior then a Peacock, for a...
  19. Dazza

    big ear, fm transmitter.

    Hi audioguru, You would have a similar problem as I'm having but opposite. It's that hot you have to drink your beer really fast, before it evaporates from the heat ;D. I guess you would have to drink yours really fast before it freezes ;D. Here's another. Dashing through the snow, in a one...
  20. Dazza

    big ear, fm transmitter.

    Hi audioguru, It is an interesting thing wavelength, I'm trying to understand how you could explain, voice wavelength when using the old-fashioned tin can and string intercom. Maybe an resonating affect, but what of the wavelength?. Maybe it is that the energy is transformed from one state to...
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