Re: USB cable starts overheating when Power Supply is turned on
Sounds like an extreme case of the problem described here: [forums.reprap.org]
View ArticleRe: USB cable starts overheating when Power Supply is turned on
New problem: LED doesn't turn on anymore, Sanguino broken now? Ok turned out the polarity of the power supply wasn't right. So I turned it around and everything worked without overheating USB cable. I...
View Articlepcb manufacturer prototype,Flexible,FR-4,HDI,thick copper pcb
HuanYu Future Technologies Co., Ltd is one of the China leading Printed Circuit Board Manufacturing Enterprises. [www.huanyupcb.com] Manufacturing Capacity 24 hours turn time on double sides PCB's,2-4...
View ArticleRe: USB cable starts overheating when Power Supply is turned on
Actually it turned out my Multimeter was malfunctioning and the polarity was working correctly in the first case. Now after I switched the polarity I probably broke the Sanguino. Anyone knows what can...
View ArticleRe: pcb manufacturer prototype,Flexible,FR-4,HDI,thick copper pcb
some more useful information such as: price, minimum order quantity, if you have to wait till you have enough for a full panel, if you add components or not(and if you provide them), etc would...
View ArticleMonotronics Schematics
Does anyone have the schematics for the 'monotronics' boards by TechZone? The link where the schematic file is allegedly stored (see 'Design Files' section of [reprap.org]) seems to contain nothing....
View ArticleRe: PCB house recommendations
Hi David, We are a PCB supplier in China, our price is very cheap in the world market but with excellent quality. Our customers are all over the world, especially EUR and USA. Our engineers check...
View Articlewww.real-pcb.com. PCB & stencil comments. $15.00 for a laser cut stencil.
Wish all of you enjoy a great day! We are a PCB supplier in China. Below are the details of our service: Price example: $15.00 for a 90*90mm frameless stencil! For prototype 2 layers PCB order 30pc,...
View ArticleRA - 3 extruder all in one board
Tell me what you think. We have made a new board. It is configured using Marlin right now. Although any ramps software should work. It is capable of running three extruders. It also supports a control...
View ArticleWeird issue! Stepper motor runs when I touch IC!!!
Hi, I'm in process of getting electronics ready and thought I will check if the motors run properly I have uploaded bootloader & firmware (splinter) on Sanguinlolu 1284P I placed polulo driver for...
View ArticleRe: Weird issue! Stepper motor runs when I touch IC!!!
Stepper ic is quite sensitive to static. Imo, if you wear wool clothes and wool socks and keep touching it like that, you have a chance to kill it. Perhaps small one, but still a chance for that does...
View ArticleRe: Weird issue! Stepper motor runs when I touch IC!!!
... if the other drivers aren't affected, then this could be an issue with grounding/shielding (receiving EMI) or wrong solderd/defective/missing cpacitors and puldowns/pullups on the inputs of the IC's.
View ArticleRe: Weird issue! Stepper motor runs when I touch IC!!!
Have you made sure you have set the configuration for sprinter to the correct electronics that you are using? It sounds like the pin assignments are wrong, and the X axis is connected to a...
View ArticleRe: Weird issue! Stepper motor runs when I touch IC!!!
Hi James, I think that is the issue. Thanks a lot for your valuable suggestion! Will change and see what it does. btw what happened is The config file has these listed // Sanguinololu 1.2 and above =...
View ArticleRe: USB cable starts overheating when Power Supply is turned on
Wow, you've been really, really lucky to only have one driver broken. I'm amazed the motherboard of the computer isn't broken, or that the Sanguinololu isn't complete toast. I can only think that the...
View ArticleThermoplast resist for etching PCB
Since before I finished my RepRap I've been interested in using it to print the traces on a board and etch my own PCBs. The Wiki doesn't have a lot of information and the forum has none that I can...
View ArticleRe: USB cable starts overheating when Power Supply is turned on
Yep I think you are right. But I'm still having the same issue, my USB cable fries when I turn on the power (correctly set-up this time). I just fried my second USB cable. It just melts the F* down...
View ArticleRe: USB cable starts overheating when Power Supply is turned on
To heat up a cable, one needs considerable current, so can assume there is an obvious short somewhere. Only need to identify where the short is located. This should be fairly easy with a multimeter,...
View ArticleRe: Thermoplast resist for etching PCB
... I'm outline-milling my PCB's, but did light-curing and laser-engraving etch-resistant coatings previously. A good methode is buying PCB's with photo-resist and cure it with a BluRay-UV-diodelaser...
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