Thermal-Protector - available soon to all

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Jetguy
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Re: Thermal-Protector - available soon to all

Postby Jetguy » Tue Apr 17, 2018 1:04 am

JohnSays wrote:Thanks JetGuy. Are you using the standard cable?


Yes, just using the factory ribbon cable but with mainboards modified before the protection board was ever produced. As such, if I do have a cable failure, there is so much length I can just cut off the bad section (most likely to fail at the flexing at the extruder end anyway) pull fresh wire through, crimp a new end on and go.

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JohnSays
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Re: Thermal-Protector - available soon to all

Postby JohnSays » Tue Apr 17, 2018 1:15 am

Jetguy wrote:
JohnSays wrote:Thanks JetGuy. Are you using the standard cable?


Yes, just using the factory ribbon cable but with mainboards modified before the protection board was ever produced. As such, if I do have a cable failure, there is so much length I can just cut off the bad section (most likely to fail at the flexing at the extruder end anyway) pull fresh wire through, crimp a new end on and go.


Okay, thanks. I have never crimped the end onto a ribbon cable. What do I need for this cable in particular? -- tool and cable end. I'd like to be prepared.

Btw, I am going to do the mainboard 1M ohm resistor mod. I like the safety implications of that over the new ribbon cable and it looks to be an easy fix anyway. I tell you, I never leave my printer unattended anymore. This fix is hugely important.
- John
2 Raise3D N2 Duals, V2 nozzles, Bondtech BMGs, adjustable table, Panucatt SD2224 drivers

zemlin
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Re: Thermal-Protector - available soon to all

Postby zemlin » Tue Apr 17, 2018 10:51 am

JohnSays wrote:Okay, thanks. I have never crimped the end onto a ribbon cable. What do I need for this cable in particular? -- tool and cable end. I'd like to be prepared.
I have used a small vise.

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Noren
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Re: Thermal-Protector - available soon to all

Postby Noren » Tue Apr 17, 2018 10:56 am

zemlin wrote:
JohnSays wrote:Okay, thanks. I have never crimped the end onto a ribbon cable. What do I need for this cable in particular? -- tool and cable end. I'd like to be prepared.
I have used a small vise.


I have used this:
https://www.conrad.se/Presst%E5ng-BKL-E ... 04_1517020

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JohnSays
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Re: Thermal-Protector - available soon to all

Postby JohnSays » Tue Apr 17, 2018 11:51 pm

Thanks guys! Noren, I found the same or similar crimper on Amazon.com here in USA. Your picture was just what I needed.
- John
2 Raise3D N2 Duals, V2 nozzles, Bondtech BMGs, adjustable table, Panucatt SD2224 drivers

DeftCAD
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Joined: Wed Dec 20, 2017 11:15 am

Re: Thermal-Protector - available soon to all

Postby DeftCAD » Wed Apr 18, 2018 12:35 pm

DeX wrote:I've got a situation here.
Can't disassemble it bcoz a white glue or silicone everywhere.
And I don't wanna break a thing.
:? :(


I had the same thing (not massively impressed if I'm being honest) but have now managed to sort it. In that image, you can see the cable going into a plastic connector, right? Well it's actually in two parts: there's a male and a female part. Keep wiggling the whole assembly and BOTH parts of mine came away from the PCB, leaving just the male pins on the PCB exposed. Then it's a case of using a scalpel to VERY CAREFULLY pick/cut at the silicone sticking the two parts together. Keep wiggling and pulling and eventually they will separate. Take the female part and put it back over the pins on the PCB, then you can connect it all up per the instructions.

I've just done mine, restarted the printer and so far everything seems fine. Hope this helps.

zemlin
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Re: Thermal-Protector - available soon to all

Postby zemlin » Wed Apr 18, 2018 1:44 pm

Yeah, that RTV on the connectors on my N2+ has turned some simple tasks into infuriating experiences, and I have cracked a connector or two in the process. My newer N2 has a hot-melt adhesive on the connectors that is a lot easier to deal with. I'm not looking forward to digging that ribbon connector out.

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JohnSays
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Re: Thermal-Protector - available soon to all

Postby JohnSays » Wed Apr 18, 2018 2:48 pm

My N2 didn't have any RTV or hot glue at either end of the flat ribbon. Now I am wondering where else hot glue should be applied?
- John
2 Raise3D N2 Duals, V2 nozzles, Bondtech BMGs, adjustable table, Panucatt SD2224 drivers

Jetguy
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Re: Thermal-Protector - available soon to all

Postby Jetguy » Wed Apr 18, 2018 3:06 pm

The extruder head breakout because the ribbon cable does not have locking connectors. This is the most flex prone area and subject to accidental failure mid print.

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JohnSays
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Re: Thermal-Protector - available soon to all

Postby JohnSays » Wed Apr 18, 2018 6:06 pm

Makes sense. I would say that the reason the connections are glued on the mainboard are to keep them from coming undone during shipping. Would you agree? The other place that looks good for glue when operating the printer would be the bed heater connections at the build plate?
- John
2 Raise3D N2 Duals, V2 nozzles, Bondtech BMGs, adjustable table, Panucatt SD2224 drivers


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