1 Topic by Serin

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Topic: Thermal cement application?

Mornin'

Not quite happy with crapton tape wrapping around my E3D so I thought thermal cement would be a more logical option.
Are there any protocols that I should observe whilst applying it? Or steps that need to be followed to eliminate air-gaps in the themistor hole?

My plan currently is to apply a small amount into the hole, press the thermistor in then apply some more just over the top to form a small mound a little like the original solidoodle's.

Anyway, advice would be wonderful smile
Cheers!

This is a crowd funding thing that I'm running: http://www.gofundme.com/bvi140 It's for pretty selfish reasons tongue

2 Reply by wardjr

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Re: Thermal cement application?

What is your plan for removal when the thermistor fails?

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3 Reply by Serin

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Re: Thermal cement application?

That... Is something I hadn't thought of.

Fek.

This is a crowd funding thing that I'm running: http://www.gofundme.com/bvi140 It's for pretty selfish reasons tongue

4 Reply by wardjr

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Re: Thermal cement application?

Serin wrote:

That... Is something I hadn't thought of.

Fek.

Yep wink

I wonder if there isn't a way around that though?  Maybe it it could still be yanked out or something.

Printit Industries Model 8.10 fully enclosed CoreXY, Chamber heat
3-SD3's & a Workbench all fully enclosed, RH-Slic3r Win7pro, E3D V6, Volcano & Cyclops Hot End
SSR/500W AC Heated Glass Bed, Linear bearings on SS rods. Direct Drive Y-axis, BulldogXL
Thanks to all for your contributions

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5 Reply by Serin

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Re: Thermal cement application?

wardjr wrote:
Serin wrote:

That... Is something I hadn't thought of.

Fek.

Yep wink

I wonder if there isn't a way around that though?  Maybe it it could still be yanked out or something.

Hmmm from what I've learned it seems the only viable option for removable would be chipping away at the stuff gradually, but even then one probably could remove it all without damaging the block.
I suppose i'll have to improve my kapton-ing skills.

This is a crowd funding thing that I'm running: http://www.gofundme.com/bvi140 It's for pretty selfish reasons tongue

6 Reply by ronsii

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Re: Thermal cement application?

there may be a chemical way to remove it....

7 Reply by wardjr

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Re: Thermal cement application?

ronsii wrote:

there may be a chemical way to remove it....

I think you should investigate and get back to us smile

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8 Reply by wardjr

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Re: Thermal cement application?

Serin wrote:
wardjr wrote:
Serin wrote:

That... Is something I hadn't thought of.

Fek.

Yep wink

I wonder if there isn't a way around that though?  Maybe it it could still be yanked out or something.

Hmmm from what I've learned it seems the only viable option for removable would be chipping away at the stuff gradually, but even then one probably could remove it all without damaging the block.
I suppose i'll have to improve my kapton-ing skills.

Somewhere is a post that adrian did about how to do it right.  Basically pull the heat cartridge out wrap several times with the thermistor in place then cut the hole for the cartridge.  That's how I do it and it looks clean and holds well.

Printit Industries Model 8.10 fully enclosed CoreXY, Chamber heat
3-SD3's & a Workbench all fully enclosed, RH-Slic3r Win7pro, E3D V6, Volcano & Cyclops Hot End
SSR/500W AC Heated Glass Bed, Linear bearings on SS rods. Direct Drive Y-axis, BulldogXL
Thanks to all for your contributions

wardjr's Website

9 Reply by ronsii

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Re: Thermal cement application?

So Serin.... what kind/brand of cement are you thinking about using? most 'cements' can be dissolved by various substances the main thing is to pick one that does not harm the heater block.

10 Reply by ronsii

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Re: Thermal cement application?

Here is a thread by Adrian that shows a how he assembles a similar hotend ---> http://www.soliforum.com/topic/5494/how … d-hotends/

11 Reply by wardjr

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Re: Thermal cement application?

ronsii wrote:

So Serin.... what kind/brand of cement are you thinking about using? most 'cements' can be dissolved by various substances the main thing is to pick one that does not harm the heater block.

Not to mention that delicate thing called the thermistor smile

Printit Industries Model 8.10 fully enclosed CoreXY, Chamber heat
3-SD3's & a Workbench all fully enclosed, RH-Slic3r Win7pro, E3D V6, Volcano & Cyclops Hot End
SSR/500W AC Heated Glass Bed, Linear bearings on SS rods. Direct Drive Y-axis, BulldogXL
Thanks to all for your contributions

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12 Reply by Serin

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Re: Thermal cement application?

Probably this stuff if I decide it's worth it, Ronsii.
http://www.selleys.com.au/fillers/rigid … of-cement/

Oh, that thread is handy, danke!

This is a crowd funding thing that I'm running: http://www.gofundme.com/bvi140 It's for pretty selfish reasons tongue

13 Reply by wardjr

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Re: Thermal cement application?

Serin wrote:

Probably this stuff if I decide it's worth it, Ronsii.
http://www.selleys.com.au/fillers/rigid … of-cement/

Oh, that thread is handy, danke!

Now if the rest of us would just be as meticulous as Adrian. smile  It just seems to me I read somewhere that fire cement was used successfully.  I just can't find the post.

Printit Industries Model 8.10 fully enclosed CoreXY, Chamber heat
3-SD3's & a Workbench all fully enclosed, RH-Slic3r Win7pro, E3D V6, Volcano & Cyclops Hot End
SSR/500W AC Heated Glass Bed, Linear bearings on SS rods. Direct Drive Y-axis, BulldogXL
Thanks to all for your contributions

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14 Reply by ronsii

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Re: Thermal cement application?

I used firecement on my E3d's smile

15 Reply by adrian (edited by adrian 2014-04-12 12:09:27)

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Re: Thermal cement application?

The Selleys fire cement works ok - but if you go >230°C on a regular basis it will become very brittle. Its good for a few weeks at a go and I used to use it before I settled on the process I outlined in that thread and it does work fine - but I got sick of thermistors falling out when I was rough with the cables after a few weeks of use...

In fact if you were near Canberra - I have a 98% full tub of the stuff I'd part with...

16 Reply by Serin

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Re: Thermal cement application?

Thanks for the offer, Adrian.
Unfortunately for me I'm down in Melbourne.
I think at this point I may just follow the procedure and materials outlined in your thread, seems most logical.

This is a crowd funding thing that I'm running: http://www.gofundme.com/bvi140 It's for pretty selfish reasons tongue

17 Reply by AZERATE

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Re: Thermal cement application?

wardjr wrote:

What is your plan for removal when the thermistor fails?

This is the exact reason why I did not use High Heat JB Weld. I just took the time to wrap the thermistor around the block, inserted the heating element, then wrapped kapton around the two tightly.
Thermistor no longer moves.

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