Trianglelab Matrix Extruder somebody?
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In case that's really an issue it is quite easy to add a small bit of silver braze. That's how I connected surgical tubing directly to brass nozzles in my DIY hotend (heatbreak and nozzle were one part in that design).
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My pair of matrix came yesterday evening. They look like a okish deal to me. The surface of the milled parts do not look very bad but not as good as it could, well the price is the point here.
Funny to see the CN fluctuation here, my pair did not came with nozzles. That is a nobrainer, I have enough of them here but funny to see.
I'm surprised how heavy the complete tool is. I have the feeling that my bondtech head on my corexy is a lot lighter. But I may be wrong, that is just my impression.
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my bmg wind arrived, and it is very light, as you can use a pancake motor with it.
so far the print results are very good. -
My LC has arrived too.
Package is complete; all cables and things are in:
Looks OK on the outside:
Screw thread for the pillars is M6.
Heatbreak is a one-piece thing, or so it seems (did not pull it out).
3 of the 4 screws hold the aluminium cooling block in place. Guess which one does not
The inside:
Slave drivewheel runs directly in the plastic lever, I don't like that. Bearings are the cheap ones that go crunchy quickly. Oh well, it is built for a price.
Gears are metal, well formed teeth, with neither too little or too much grease applied:
Heatbreak could have been extended a bit more towards the drive wheel:
But oh well, this probably works OK too.
It will take a while before I can actually test it, but the first impression is quite positive.
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detailed review! Surprisingly well built, but it's still a fair bit of change. Not sure what I'd choose today, but thanks for sharing.Edit: throw it on a scale when you find the time?
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I am still designing for 150C chamber temperature, and with a bit of extra cooling this thing might be able to handle that just fine. Except for the plastic lever probably.
If it does, it is still a fairly cheap device for such a hostile environment.I will throw it on a scale tomorrow.
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Totally forgot to put it on the scale, sorry.
Here is the weight:
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One thing I'd love for you to test, use a metal file and try to file a teet grabbing filament (somewhere on the side, not in the middle where is important. If the teeth are hardened (like on bondtech and some PRC clones) that's awesome and file will not bite and will just slide over them, if the file bites than it's not good for "complex" materials... not a big deal but would be good to know
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Good test indeed. I will do that when I have it apart again.
(Which I probably will; that plastic handle certainly cannot handle the 150C environment I plan to test, so I want to measure and CADify it.)
I do print carbon-filled filaments from time to time, so if they are not hardened I probably want a set of spare drive gears.
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@DaBit said in Trianglelab Matrix Extruder somebody?:
carbon-filled filaments from time to time, so if they are not hardened I probably want a set of spare drive gears.
yup, they grind the teeth flat rather quickly if not hardened ... or tbh, they grind the brass teeth quickly, I never tried untreated steel teeth (both original and prc clone bondtech I have are with hardened teeth)
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Well, those gears are produced from some sort of tool steel anyway since it machines so much better than low-carbon unalloyed steel.
These shaft holders are made from 1.2510 tool steel (with aluminium the shafts would be loose in the holders at 150C, hence steel), hardness as delivered around HRC23. Bores and other features are nice and smooth after machining, even with a simple helical toolpath:
And this is simple hot-rolled steel, same machine, same endmill:
Difference in finish is well visible. Compare that to the picture of the drive gear, so they use at least something similar. Brass would be 1/2 the hardness.
On the other hand I hope they did not make the teeth too hard. That would fracture them over time.
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Hi *,
Let me come back to the topic.
Does anybody have some infos about the shipped thermistor? (24V)
I have the golden (brass) tube and a spring at the end of the cable. It looks like :
https://de.aliexpress.com/item/33029709571.html?spm=a2g0x.12010612.8148356.14.2b3743aavUups2 but with a spring like https://de.aliexpress.com/item/4000907614466.html?spm=a2g0x.12010612.8148356.2.2b3743aavUups2I'm totally confused now.
Does anybody have some settings which work fine? Is anybody willing to share them and ideally the "M307" for the hotend. I have them connected to a toolboard which can not auto tune the pid.
Cheers, Chriss
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@Chriss said in Trianglelab Matrix Extruder somebody?:
Does anybody have some infos about the shipped thermistor? (24V)
the thermistor is not 24v. only the heating element is.
they write they ship the thermistor with a Thermistor Semitec 104NT-4-R025H42G.
this is the same as the e3d one.if you connected them to 24v, you will have destroyed the thermistor.
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Hahaha.... well the amount of destruction depends of the current than.
Enough fun for today, I mentioned the 24V because I'm not convinced that the guys from copyland send the same thermistor whether it is a 12 or 24 Volt kit. Thanks for the hint, I did not see that. the German translation drives me creazy. -
@Chriss said in Trianglelab Matrix Extruder somebody?:
Hahaha.... well the amount of destruction depends of the current than.
if anything it would depend on time; as the thermistor has a negative temperature coefficient its resistance would decrease as it heats up, causing the temperature to increase. if left long enough both 12v and 24v directly connected to a ntc thermistor would cook it.
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@bearer said in Trianglelab Matrix Extruder somebody?:
if left long enough both 12v and 24v directly connected to a ntc thermistor would cook it.
Not if your source will deliver 0.001mA only.
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i don't suspect you'll find many of those on a duet
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@bearer Well, at least @PCR has one.
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@Chriss i am only using PT1000 ones ;D
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