- Joined
- Jan 19, 2007
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- 288
the last version of wiring that I will use.
I will rule the phase, but I will put an extra fuse between oven and SSR. I saw that on my friend oven.
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My Heat treath oven project
- Thread starter knifemaniac
- Start date
the last version of wiring that I will use.
I will rule the phase, but I will put an extra fuse between oven and SSR. I saw that on my friend oven.
- Joined
- Feb 17, 2007
- Messages
- 3,375
You just need to get a SSR that will handle the load of you elements and that matches your PID output. Most SSR are rated for so many amps and have a range of voltage that will switch them on. Most of the ones from Aubeins need 4 to 32 vdc to switch on. If the SSR doesnt match the PID the SSR will either fail to operate of one of them will burn up. Also if DC you need to wire it for the correct polarity or it won't turn on. I learned that one the hard way.
- Joined
- Jan 19, 2007
- Messages
- 288
I discovered that a fuse between heater and SSR, phase comutating scheme cannot protect the SSR!!!. Manifactirer told me that the SSR will burn faster than fuse will turn off. Anyway, it is allready done like that.
I have a dissapointment, guys. 3Kw heater is far too weak for my oven. It take 950C for 6 hours. Faaar toooo slow for me. I will remove the floor heaters and try it on 4Kw next weekend. If it doesn't work on 4Kw fast enough, I will add another layer of insulating plane 5cm thick and I will make heaters from thinner wire. Inside chamber will be 20x20x55cm if resized.
Clip from testing with controller.
I have a dissapointment, guys. 3Kw heater is far too weak for my oven. It take 950C for 6 hours. Faaar toooo slow for me. I will remove the floor heaters and try it on 4Kw next weekend. If it doesn't work on 4Kw fast enough, I will add another layer of insulating plane 5cm thick and I will make heaters from thinner wire. Inside chamber will be 20x20x55cm if resized.
Clip from testing with controller.
- Joined
- Jan 19, 2007
- Messages
- 288
I made a test without heaters on the bottom - 4kw and it reached 1050C for two and a half hours . I still think it is slow, and I will resize the inside chamber on 20x20x50cm. My next heaters will be 1.8mm thick heater on 4KW - the same mount with spikes.
- Joined
- Jan 19, 2007
- Messages
- 288
Some art - cubism before new heater.
- Joined
- Jan 19, 2007
- Messages
- 288
Guys, I finally finish that monster. 1050'C for 54 minutes on 3600W electrical power. I am in a profi league now. 
I HAVE HT OVEN NOW. YESSSSS:jerkit:
I HAVE HT OVEN NOW. YESSSSS:jerkit:
- Joined
- Dec 31, 2008
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- 687
That's freakin awesome. You did a good job building it. Thanks for sharing it with us!
- Joined
- Oct 30, 2002
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- 3,974
Tremendous job! Congrats on finishing that project. It's a great looking build.
--nathan
--nathan
- Joined
- Jan 19, 2007
- Messages
- 288
The only thing that I will repair in the future will be if the heater burn out, but I can made myself a newone. All that stuff costs me arround 500 EU. A lot more cheaper than factory made (not better, but certainly not lot worse), I can repair it by myself, and most important is that now I can make new one - even cheaper and better. If I have to make another one it would be arround 400EU all costs.
My advice - if someone is making oven like that - dont put bricks - use only fireproof insulation boards and lighter construction. Imagine the same oven smaller - without lightweight bricks, or if you like the same size - use the same insulation boards instead of bricks. More insulation - more speed and economy.
All that stuff costs me arround 500 EU. A lot more cheaper than factory made (not better, but certainly not lot worse), I can repair it by myself, and most important is that now I can make new one - even cheaper and better. If I have to make another one it would be arround 400EU all costs. My advice - if someone is making oven like that - dont put bricks - use only fireproof insulation boards and lighter construction. Imagine the same oven smaller - without lightweight bricks, or if you like the same size - use the same insulation boards instead of bricks. More insulation - more speed and economy.
