I am tired of thermistors and I think we all need to look for a better solution March 31, 2014 12:32AM |
Registered: 12 years ago Posts: 334 |
Re: I am tired of thermistors and I think we all need to look for a better solution March 31, 2014 02:08AM |
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Re: I am tired of thermistors and I think we all need to look for a better solution March 31, 2014 02:29AM |
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Re: I am tired of thermistors and I think we all need to look for a better solution March 31, 2014 02:54AM |
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Re: I am tired of thermistors and I think we all need to look for a better solution March 31, 2014 05:31AM |
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Re: I am tired of thermistors and I think we all need to look for a better solution March 31, 2014 06:15AM |
Registered: 10 years ago Posts: 903 |
Quote
thejollygrimreaper
the issue you'll have with thermocouples is that the wire they are built from is solid and won't handle the movement as long
Re: I am tired of thermistors and I think we all need to look for a better solution March 31, 2014 06:17AM |
Admin Registered: 12 years ago Posts: 1,063 |
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Traumflug
Such threaded couplers have substantially more mass. As a result, your regulator will respond slower to heat consumption. These miniature thermistors have the advantage of responding very quickly, so you get better, more constant temperature regulation.
And all this has nothing to do with thermistor vs. thermocouple. I'm pretty sure there are thermistors with a threaded mount, too.
Re: I am tired of thermistors and I think we all need to look for a better solution March 31, 2014 07:01AM |
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Re: I am tired of thermistors and I think we all need to look for a better solution March 31, 2014 08:23AM |
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Re: I am tired of thermistors and I think we all need to look for a better solution March 31, 2014 10:15AM |
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Re: I am tired of thermistors and I think we all need to look for a better solution March 31, 2014 10:31AM |
Registered: 10 years ago Posts: 903 |
Quote
Mogal
What about these little guys?
H3457 Fast Response Micro Probe
Sensor: NTC thermistor; M3 thread
Re: I am tired of thermistors and I think we all need to look for a better solution March 31, 2014 12:44PM |
Registered: 12 years ago Posts: 334 |
Re: I am tired of thermistors and I think we all need to look for a better solution March 31, 2014 04:22PM |
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Re: I am tired of thermistors and I think we all need to look for a better solution March 31, 2014 05:28PM |
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Re: I am tired of thermistors and I think we all need to look for a better solution March 31, 2014 06:46PM |
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Re: I am tired of thermistors and I think we all need to look for a better solution March 31, 2014 06:59PM |
Registered: 10 years ago Posts: 903 |
Quote
RP Iron Man
It would be great if someone could come up with a RAMPS 2.0 that is affordable and has thermocouple support built in.
Re: I am tired of thermistors and I think we all need to look for a better solution March 31, 2014 09:09PM |
Registered: 11 years ago Posts: 1,381 |
Re: I am tired of thermistors and I think we all need to look for a better solution April 01, 2014 03:03AM |
Admin Registered: 17 years ago Posts: 13,986 |
Quote
A2
Q: what filaments requires >300C, got a list?
Re: I am tired of thermistors and I think we all need to look for a better solution April 01, 2014 05:49AM |
Registered: 12 years ago Posts: 490 |
Re: I am tired of thermistors and I think we all need to look for a better solution April 01, 2014 03:30PM |
Admin Registered: 15 years ago Posts: 1,470 |
Quote
RP Iron Man
I think the biggest barrier is the lack of thermocouple integration with standard electronics boards. The actual thermocouples are not too much more expensive than thermistors but it becomes a PITA when you have to buy an external expansion board $15-20USD just to use a thermocouple. On top of that, there is the chance that it won't end up working simply because there are problems that have not been debugged (as someone described earlier in this thread).
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Re: I am tired of thermistors and I think we all need to look for a better solution April 03, 2014 09:00PM |
Registered: 12 years ago Posts: 334 |
Re: I am tired of thermistors and I think we all need to look for a better solution April 03, 2014 09:30PM |
Registered: 10 years ago Posts: 903 |
Quote
jzatopa
I would like to point out that the solution doesn't really need to be a thermocouple. If we could find an M3 threaded thermistor that operated up to 300C we would have an ideal solution. I just can't seem to find one.
Re: I am tired of thermistors and I think we all need to look for a better solution April 03, 2014 11:13PM |
Registered: 12 years ago Posts: 334 |
Re: I am tired of thermistors and I think we all need to look for a better solution April 03, 2014 11:37PM |
Admin Registered: 12 years ago Posts: 1,063 |
Quote
jzatopa
Obviously I didn't
That is actually perfect. My whole goal is a plug and play solution and that looks a great solution, now I just need to wait until they get stock.
*hops on soapbox*
HEY HOTEND MANUFACTURES, MAKE M3 THREADED HOLES THE STANDARD. WE WILL ALL BENEFIT
THANK YOU
*hops off soapbox*
Re: I am tired of thermistors and I think we all need to look for a better solution April 04, 2014 06:04AM |
Registered: 10 years ago Posts: 903 |
Quote
jzatopa
My whole goal is a plug and play solution and that looks a great solution, now I just need to wait until they get stock.
Re: I am tired of thermistors and I think we all need to look for a better solution April 04, 2014 06:45AM |
Admin Registered: 12 years ago Posts: 1,063 |
Quote
vreihen
Quote
jzatopa
My whole goal is a plug and play solution and that looks a great solution, now I just need to wait until they get stock.
If you read the description, the seller simply glued a thermistor into the brass fitting. It took me all of five seconds to realize that the brass fitting was a simple M3 chassis standoff, sold by the pound/kilogram:
Given the near-negligible cost, I want to know what are everyone's thoughts about replacing the set screw in an E3D or other hotend design with a side-drilled M3 (or even M2) hole that uses one of these standoffs as both the set screw for the heater cartridge *and* the thermistor housing? By having direct contact with the heater cartridge the sensor delay from additional heated mass of the standoff should be somewhat mitigated.....
Re: I am tired of thermistors and I think we all need to look for a better solution April 04, 2014 09:30AM |
Registered: 10 years ago Posts: 869 |
But in the process, you're also moving your thermistor away from where you're actually trying to measure the temperature, as well as adding a heat sink since the thermistor would be in the section that protrudes from the heater block. Yeah it might look better, but you're not going to get a more accurate reading.Quote
vreihen
Given the near-negligible cost, I want to know what are everyone's thoughts about replacing the set screw in an E3D or other hotend design with a side-drilled M3 (or even M2) hole that uses one of these standoffs as both the set screw for the heater cartridge *and* the thermistor housing? By having direct contact with the heater cartridge the sensor delay from additional heated mass of the standoff should be somewhat mitigated.....
Re: I am tired of thermistors and I think we all need to look for a better solution April 04, 2014 12:27PM |
Registered: 12 years ago Posts: 334 |
Quote
vreihen
Quote
jzatopa
My whole goal is a plug and play solution and that looks a great solution, now I just need to wait until they get stock.
If you read the description, the seller simply glued a thermistor into the brass fitting. It took me all of five seconds to realize that the brass fitting was a simple M3 chassis standoff, sold by the pound/kilogram:
Given the near-negligible cost, I want to know what are everyone's thoughts about replacing the set screw in an E3D or other hotend design with a side-drilled M3 (or even M2) hole that uses one of these standoffs as both the set screw for the heater cartridge *and* the thermistor housing? By having direct contact with the heater cartridge the sensor delay from additional heated mass of the standoff should be somewhat mitigated.....
Re: I am tired of thermistors and I think we all need to look for a better solution April 04, 2014 02:59PM |
Registered: 12 years ago Posts: 195 |
Quote
vreihen
Given the near-negligible cost, I want to know what are everyone's thoughts about replacing the set screw in an E3D or other hotend design with a side-drilled M3 (or even M2) hole that uses one of these standoffs as both the set screw for the heater cartridge *and* the thermistor housing? By having direct contact with the heater cartridge the sensor delay from additional heated mass of the standoff should be somewhat mitigated.....
Re: I am tired of thermistors and I think we all need to look for a better solution April 04, 2014 06:33PM |
Registered: 10 years ago Posts: 903 |
Quote
jzatopa
Your idea is a good one the only problem I see is that if you try to replace the grub screw with the thermistor, you have no way to tighten the heating element.