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After the test run today I have decided to leave it as is. One coil. Ran it up to 1875 in good time so I'm happy. Again thank for all your input help and suggestions. Sent from my XT907 using Tapatalk

Thanks Ken I think for now I will try it as is. Dave

Got them from Budget Casting Supply http://www.budgetcastingsupply.com/Heating-Elements.php Item Number 7103. I used two of these originally. Now only one. #7103 Specifications: Material: Kanthal A1 Wire Maximum Temperature: 2300°F Power: 240 Vac, 13 Amps, 3120 Watts Wire Size: .046", (17...

The Tcouple came in to day and I installed it and did a test run. The oven ran up to 1000 in 30 minutes and then ramped to 1500 in another 30 minutes. All I had time for today. Tomorrow I will run it up to the 1850 mark and see how it does. Now here is my question. I was originally running 2...

Thanks Ken. I built the oven off of the plans floating around the net. They call for 2 coils wired in series. What I found out today is it was supposed to be 120 volt coils. I opened it up today and removed the coils. Stretched one to the max of 120 inches and put it in. Fired it up and found my...

I know the very basics about electricity. I can wire light and switches. But this stuff is like a foreign language. The specs above say 3120 watts but have I cut the watts down by wiring in series and not parallel?

These are the specs for the coils from the manufacturer. Specifications: Material: Kanthal A1 Wire Maximum Temperature: 2300°F Power: 240 Vac, 13 Amps, 3120 Watts Wire Size: .046", (17 AWG) Unstretched Length: 41" Minimum Operational (Stretched) Length: 60" Maximum Stretched Length: 120" Coil...

Much try changing the SSR out. Sent from my XT907 using Tapatalk

Thanks. That is what is stumping me. This oven should be fast. I can't figure it out. Sent from my XT907 using Tapatalk

The coils are rated for 3120 watts. I am running 220 volts 20 amp. The coils are wired in series. Chamber size is 14 deep 4 high 5.5 wide. Using a PID with a 20 amp SSR. Built with k23 brick single layer with an additional 2 to 4 inches of vemiculite around all the sides. Sent from my XT907...

Having problems with my oven. I can hit 1000 in 30 to 40 minutes but it really slows down after that. It can take another hour or more to raise to 1850. Are the coils too small or could there be other problems. Can anyone on the forum help with coil size information.

Thanks for the replies. I am not concerned so much about scale as I am about the blades being at these temps for extended times. Sent from my XT907 using Tapatalk

I have a home built oven. It is slow to ramp. It can take 3 to 4 hours to hit the 1850 1900. I have been using 1095 and would like to stats using 440c also. The 1095 is not bad. Get the oven to temp, place steel in, let temp recover, time soak, remove. On the 440c I would need to soak at 1500...

Thank you for the replies. I have sent some 440 out HT before and the blades did com back looking amazing. Anything that cuts down on belts and time grinding is well worth it.

I recently built a HT oven. I built it so I can move into some other steels besides the 10XX tool steels. Plus it will take alot of the guess work out of heat treating. I would like to grind some blades from 440c for starters. I will be using the plate quench method when they come out of the...

Thank you. Lots of good information here. Sent from my XT907 using Tapatalk

Thanks for the reply. I live in the Auburn area. Sent from my XT907 using Tapatalk

I have been a member for awhile now. Thought I had introduced my self but guess I didn't. I live in the gold country of California. My uncle got me hooked on knife making when I was in high school. That was 30 years ago. I have been making them on and off from that time. Glad to be here.

#1 1095 steel. G10 Camp scales with red fiber liners. #2 1095 steel. Pink G10 black liners. #3 1095 steel. Stabilized madrone scales.