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PostPosted: Mon Sep 26, 2016 7:59 am 
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Showy Hen
Showy Hen

Joined: Fri Jun 03, 2016 8:06 pm
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Location: One Tree Hill, South Australia
Ah thanks Denis! I've made a couple of errors because I made it from a plan in my head instead of taking time to do it on paper!
I was going to paint it with a rubber waterproof membrane that goes under tiles in bathrooms but I'd much rather use normal paint if that will do the job.
Putting a mat under the eggs at day 18 is genius! That will just about solve difficult clean up surely.
All I have left to do now is install the temp controller and motor for the egg turner, make the lid and paint the false bottom.
I've started on the lid which is in the background with two holes for windows.


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PostPosted: Tue Sep 27, 2016 9:25 am 
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Showy Hen
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Location: One Tree Hill, South Australia
Polystyrene sheets in the walls. I'll glue the bottom on tonight.


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PostPosted: Tue Sep 27, 2016 12:55 pm 
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Superior Bird
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Location: Bendigo
How hot does the element get if the fan fails?
They look pretty good and are even cheaper than the 200W globes from Bellsouth etc.


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PostPosted: Tue Sep 27, 2016 2:01 pm 
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Showy Hen
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Location: One Tree Hill, South Australia
Hey Denis. The heater has an inbuilt 60c cut out but the other two fans should keep enough circulation for the temperature controller to regulate the temp before it ever got to that.
Very low risk of them failing compared to a globe I think.
Next time I'd consider getting two 100w elements at opposite ends of the incubator for redundancy though...

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PostPosted: Wed Sep 28, 2016 8:51 am 
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Showy Hen
Showy Hen

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Location: One Tree Hill, South Australia
The tricky part of the lid complete! Now it just needs the polystyrene and the top of it glued on before I can stick in the windows.


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PostPosted: Thu Sep 29, 2016 9:06 am 
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Showy Hen
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Location: One Tree Hill, South Australia
Lid woodwork complete. Need to paint and stick in the perspex windows.
Also did a salt water test with my hygrometer. It's reading 9% low which means my incubator was 9% more humid than I thought that entire last hatch attempt :doh


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PostPosted: Thu Sep 29, 2016 2:01 pm 
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Superior Bird
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Location: Bendigo
Hygrometers are notoriously inaccurate as you have found.
Their readings are also influenced by a lot of factors other than humidity, especially temperature.
Your 9% error in the salt water is done at a much different temperature and circulation of air than is found in an incubator.
Set your incubator at it's running temp and then use a DIY wet-bulb to calibrate.


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PostPosted: Thu Sep 29, 2016 7:54 pm 
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Showy Hen
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Location: One Tree Hill, South Australia
I just calibrated the temperature controller using an ice slurry and it was reading exactly 1.0c high which means my incubator was around 37 for the last hatch.

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PostPosted: Fri Sep 30, 2016 1:02 pm 
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Superior Bird
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Calibrating your temperature controller at 0c isn't good enough. You need to do it around 37 - 38 using a medical thermometer.


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PostPosted: Sat Oct 01, 2016 10:58 am 
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Showy Hen
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Location: One Tree Hill, South Australia
Ive changed controllers to a PID controller with a PT100 temperature sensor that uses electrical resistance and is much more accurate.
Have just switched it on this morning and it is getting up to temp. Quieter and faster than the previous incubator due to the size and insulated walls.
I will plug in a power meter to see what kind of cost it will be to run for 21 days.


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PostPosted: Sun Oct 02, 2016 6:20 pm 
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Showy Hen
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Location: One Tree Hill, South Australia
Control panel with turner timer, temp controller and light switch.


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PostPosted: Sun Oct 02, 2016 7:07 pm 
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Showy Hen
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Location: One Tree Hill, South Australia
This is the egg turner in pieces. Basically, the blue cylinder on the motor shaft slides into the hole in the timber and then the metal rod (shaft of a screw driver) slides into another hole drilled through the side of the timber and also through the side of the blue cylinder to lock it onto the motor shaft. Lastly the little bit of timber covers the hole in the side of the timber to stop the metal rod from working it's way back out.


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PostPosted: Sun Oct 02, 2016 7:09 pm 
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Showy Hen
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Location: One Tree Hill, South Australia
Better to explain it half assembled! Rod slides the rest of the way in and then the little strip screws on


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PostPosted: Tue Oct 04, 2016 10:20 pm 
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Showy Hen
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Location: One Tree Hill, South Australia
Motor assembled to mount and is now inside incubator.


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PostPosted: Tue Oct 04, 2016 10:21 pm 
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Showy Hen
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Location: One Tree Hill, South Australia
I added some ventilation holes and have started making a sliding cover for them too.


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