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Sorry the Kickstarter didn't get funded, guys. If there was ever a campaign that deserved it, this was it. Do you have any plans to sell the DIY...
The only way I know of to do a wired fw update other than with a USB key is to use a PICkit3 to flash the firmware over the ISP pins. (I've done...
So, what's the verdict? (I hope the silence isn't due to fire-related injuries!)
Looks like Mouser has Semitec 204NT-4 in stock for $3.21 each....
Yeah, a Beta value isn't very accurate outside the temp range it's listed for. (Is it just me or is B25/50 a really odd range?) It would be...
I think you're going to be disappointed with 3900k replacements. I found the function for finding a specific temp/resistance of a thermistor using...
Hmm, I should graph the temp slope for these and see if that's an increase or decrease in temp. If that's a 100 Ohm difference around 200C, that...
Found a possible replacement: Amphenol makes a 200k axial NTC with a beta of 4365K. They aren't crazy cheap, but they aren't terrible. Digikey...
I think this is where I got stuck, as well. 200k thermistors are just not very common. Maybe I'm overlooking something obvious, but I don't know...
Thermistors are usually specified by their "Beta" value, which is a function of their resistance value at 2 different temps. It's usually 25C on...
FYI, printrbot is having a sale on their PCB heaters. The 6x6" is only $15. It's 240W @ 12V. I have a couple of these, and they work very well. I...
[ATTACH] [ATTACH] You can see the two screws that hold the black part on in the first image. (You don't want it to look like mine... I forced it...
I think I do. But that's because I broke mine taking it apart. It's really hard to get the black and white parts apart. There are 2 screws holding...
Melting some of the housing might help with the noise! The plastic box under the bed doesn't actually have anything in it other than the Y...
Holy crap that is overkill! I haven't seen anyone use power resistors for a heat bed in a long time. PCB heaters are cheaper, thinner, and heat...
It wouldn't be easy to modify the Cube to use 24V for the hotends. The 12V rail goes into an LDO on the extruder carriage that outputs 9V. (I...
Sexy! I like the "DC OK" switch and voltage adjustment pot. If only every PS came with those!
12V. I measured the heater resistors at around 15 ohm.
I connected my working cube to a Win10 laptop, and it came up as a completely different USB device. VID/PID are for 3D Systems. Device class is...
The firmware isn't encrypted, that's how!