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Anyone used a ring heater?

Posted by HereinCS

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HereinCS

Anyone used a ring heater?
March 14, 2011 11:51AM

Registered: 13 years ago
Posts: 46

has anyone tried a ring heater to heat up the extruder?

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nophead

Re: Anyone used a ring heater?
March 14, 2011 12:05PM

Admin
Registered: 17 years ago
Posts: 7,879

I haven't seen one small enough.

[www.hydraraptor.blogspot.com]

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HereinCS

Re: Anyone used a ring heater?
March 14, 2011 12:43PM

Registered: 13 years ago
Posts: 46

smallest one that I can afford is 1". At $47 from macmaster carr, it's a reliable clamp on solution. That does mean that I have to use a 1" tube. These goes up to 1500'f, an aluminum tube should be ok right? If not then I can make an aluminum sleeve over my existing 1/2' tube.

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Have Blue

Re: Anyone used a ring heater?
March 17, 2011 02:53PM

Registered: 14 years ago
Posts: 172

I've seen quite a few band heaters on Ebay - here's a very inexpensive little 3/4" unit: [cgi.ebay.com]

[haveblue.org]

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Andrew Diehl

Re: Anyone used a ring heater?
March 18, 2011 04:16PM

Registered: 13 years ago
Posts: 581

Problem is all the band heaters out there are for 120V+

I'm looking into getting a run of 12V ones made. All the current heater solutions are pretty bad so something like this has to happen eventually.

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NewPerfection

Re: Anyone used a ring heater?
March 18, 2011 10:21PM

Admin
Registered: 15 years ago
Posts: 1,470

Andrew Diehl Wrote:
-------------------------------------------------------
> All the current heater solutions are pretty bad so
> something like this has to happen eventually.

I don't see any issues with the resistor-block heaters. They are very cheap too. Even nichrome is fine if done similar to how the makergear hot ends are.

However, a simple clamp-on heater like Have Blue linked to would be nice.

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nophead

Re: Anyone used a ring heater?
March 19, 2011 04:55AM

Admin
Registered: 17 years ago
Posts: 7,879

The problem is that they are 1" long. That would give a long melt zone compared to the resistor heater block, which can be only 8mm thick.