Nozzle too cold fix.

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wilsonj
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Nozzle too cold fix.

Post by wilsonj » Thu Dec 06, 2012 8:22 am

With the new wind barrier fully open I occasionally get a "nozzle too cold" error. So I decided to try coating the side of the heater that gets air blown on it with some high temp silicone. I also beefed up the heater wires to help give them some extra strength, as they are notorious for breaking.

So far so good. The temp now stays at 100% even with the flap fully open.

Image
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Jamie
3DPrinterGear.com.au

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JuliaDee
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Re: Nozzle too cold fix.

Post by JuliaDee » Thu Dec 06, 2012 1:12 pm

That's an ingenious idea, Jamie!

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wilsonj
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Re: Nozzle too cold fix.

Post by wilsonj » Thu Dec 06, 2012 7:31 pm

JuliaDee wrote:That's an ingenious idea, Jamie!
Thanks Julia. I've been meaning to try this for a while. Finally got around to buying a tube yesterday!

The other advantage to this is that filament doesn't stick to the hot end resulting in a lumpy smelly mess. ( You already have a lumpy mess of silicone!! :shock: :D )
Regards
Jamie
3DPrinterGear.com.au

nestorbj
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Re: Nozzle too cold fix.

Post by nestorbj » Fri Dec 07, 2012 3:34 am

Hi wilsonj,

I buy the Extruder Head Unit for spares and in the hot-end they attached High-Temperature Insulation tape on the nozzle.
I think the purpose is the same like your mod.
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Nestor

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wilsonj
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Re: Nozzle too cold fix.

Post by wilsonj » Fri Dec 07, 2012 6:19 pm

Hi nestorbj,

Thanks for the info and picture. I wasn't aware of that. I guess just one more little improvement they are doing. Good to see its continually being revised.

One other major advantage of either the heat tape of silicone is that it becomes much harder to burn yourself too!

Cheers
Jamie
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Jamie
3DPrinterGear.com.au

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wackojacko
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Re: Nozzle too cold fix.

Post by wackojacko » Fri Dec 07, 2012 6:21 pm

There are updated wind barriers in the example folders to reduce this problem, try download and print the latest ones.
Bruce
http://www.3DPrintingSystems.com

Need help with your printer, check out our Youtube channel.
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marto
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Re: Nozzle too cold fix.

Post by marto » Tue Dec 11, 2012 10:02 am

I was wondering what silicone you used. I have been looking at Sellys Engineering 401 Silicone but its only rated to 205C.

Steve

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wilsonj
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Re: Nozzle too cold fix.

Post by wilsonj » Thu Dec 13, 2012 4:50 am

Hi marto,

The silicone I used is ABRO RED. RTV Silicon gasket maker. Its good for 343C.

Regards
Jamie
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Jamie
3DPrinterGear.com.au

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