Re: New build / Rambo problem
You were right on!!!! Thank you very much. As soon as I plugged the thermisters in, the motors started working. Now, a second problem: The heat bed power light comes on as soon as I plug in the power...
View ArticleRe: Solution to endstop cross talk?
If the switch is short circuit, it sinks the signal to ground. Its harder in this situation to change the signal because the signal is the "local" gnd. Its hard to change the ground value - at least...
View ArticleMarlin + RAMPS 1.4, spinning motors?
Hello! I am very new to RepRap and am trying to implement the Marlin 1.0 firmware in a personal project which mimics a 3D printer, except that it uses an airbrush to make art. I have a Sainsmart RAMPS...
View ArticleRe: Marlin + RAMPS 1.4, spinning motors?
If you have nothing plugged in the thermistors connector, the firmware "reads" a very unusual temperature and throws an error and stops working. Put the thermistors there and it will read room...
View ArticleRe: Marlin + RAMPS 1.4, spinning motors?
QuoteNoobMan If you have nothing plugged in the thermistors connector, the firmware "reads" a very unusual temperature and throws an error and stops working. Put the thermistors there and it will read...
View ArticleRe: Need some advice or reviews on SainSmart products
For the most part, SainSmart has been pretty good to me with their Mega2560 boards. Heck, I sell them myself.... =) I think vreihen is correct on most, if not all, of the complaints regarding...
View ArticleNeed some advice/reviews on SainSmart products
I'm new to the 3D printing world, am in the process of choosing & buying the parts for a 3D printer I'm building (Prusa Mendel i2), and I've been debating on whether I should go with an *official*...
View ArticleRe: Need some advice/reviews on SainSmart products
It's certainly a good idea to support Open Hardware developers and buy from them. Developers make new products, not copycats.
View ArticleRe: Need some advice/reviews on SainSmart products
You should be OK with Sainsmart, Geeetech or many of the other discount suppliers. There is at least one thread on the forums here about Sainsmart and as with most other companies there are good and...
View ArticleRe: Need some advice/reviews on SainSmart products
Quotevreihen I posted my response to your duplicate thread in the Electronics forum: http://forums.reprap.org/read.php?13,382327,382491#msg-382491 I think the docs issue and hoping you get what you...
View ArticleBeeper and RUMBA board
Hi, I would like to add a beeper to my RUMBA, do you think it is possible? I've seen in the marlin firmware that the pin 44 is dedicated to the beeper, but I don't know where this pin is located on...
View ArticleRe: Need some advice/reviews on SainSmart products
Quotevegasloki I think the docs issue and hoping you get what you need in a kit has more to do with the buyer's expectations and how well they have researched what they need. In DIY one needs to be...
View ArticleCan anyone please recommend a power resistor...
That can be precisely positioned under a 5mm area such that the temperature can hit 100 Degrees Celsius within a minute? Many many thanks, Lokey
View ArticleRe: Marlin + RAMPS 1.4, spinning motors?
Alright! I wired a 100k resistor over each of the thermistor ports and with the correct configuration, the RepRap now reports a sensible temperature! Yay! However: the motor will still not move and...
View ArticleATX power supply question
I'm worried about 18AWG yellow wire (of the ATX PS) being able to carry 11A. Since the 8 pin ATX12V power supply connector consists of 4 +12V and 4 GND wires, can I join 2 or more +12V yellow wires...
View ArticleRe: Anyone here using the BeagleBone (Black) to control their 3D printer?
QuoteBobLWeiss I am running my Delta printer on Beaglebone Black with LinuxCNC for the software.. The PRU's are used to drive the steppers at 2.5 times the speed the best Arduino based RAMPs solution...
View ArticleRe: Marlin + RAMPS 1.4, spinning motors?
Lots of questions to help diagnose your issue.. Do you have 12v wired into the 12v 5amp ramps power socket? this is used to power the steppers. is this power supply on? Is the Stepper driver plugged...
View ArticleRe: ATX power supply question
QuoteDom22can I join 2 or more +12V yellow wires and connect to the Ramps board? ( And do the same with the black GND wires?). Yes. Actually, the more wires you use, the better.
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