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Re: Heted bed not integrated into Ramps?
Here a picture from Stoffel15's Heated WolfBed in the wiki.
View ArticleRe: new too electronics
The Gen7 -- if that's what you're using -- instructions have a section on where you need to check your voltages before hooking up any sensitive/expensive semiconductors. I don't about RAMPS or other...
View ArticleRe: Help! overheated pad (soldering)
Yes I tried with flux after cleaning it, the flux just melted and the solder sat on top!
View ArticleRe: Help! overheated pad (soldering)
QuoteI've tried cleaning it, flooding the whole area with solder and sucking it off, cleaned it with acetone, scraped it with the point of a knife, it just doesn't want to play. Gently scraping or...
View ArticleRe: new too electronics
Just check the RAMPS 1.4 wiki. [reprap.org] This firmware here is a good one to put into the Arduino first [reprap.org] It will test all the LED's and output to all the Stepper Motors to move back and...
View ArticleRe: Basics about switching loads (hotend, heatbed) with MOSFETs
I thought the proper term was Shunt Diode. Used on relays too to dump the magnetic collapse from back feeding through an output on a microcontroller. The RAMPS 1.4 does have an LED in parallel with...
View ArticleRambo with newest Marlin hotend current issues
I am currently using a Rambo board with the newest Marlin firmware and a 12V power supply on one of my machines. The hotend is a budaschnozzle with a standard resistor heating element. I previously...
View ArticleRe: XBOX 360 Power Supply, last connections?
right im going the same direction as using the female connector im powering my ramps with two 12v lines one too the11a and the other tothe 5a side, and there iss 3 x12v and 3 gnd do i splice 1 of the...
View ArticleRe: Basics about switching loads (hotend, heatbed) with MOSFETs
Not really, as the LED is forward biased rather than reverse biased.
View ArticleRe: Basics about switching loads (hotend, heatbed) with MOSFETs
Cefiar Wrote: ------------------------------------------------------- > Not really, as the LED is forward biased rather > than reverse biased. Ahhh, good point.
View ArticleMultiple power source/multiple heater setup
All, I had asked some questions about non integrated heaters, and I think it is a bit too advanced for me right now. I am trying to make a printer with a 500mm x 500mm print area, that can print ABS....
View ArticleMelzi 5V supply drain current?
Hi all, I, like many before me, am trying to connect my Raspberry Pi to my RepRap (pro Huxley). I'm using the melzi V2 electronics supplied there with and was wondering whether there was any point on...
View ArticleRe: Basics about switching loads (hotend, heatbed) with MOSFETs
Inductive load for FET is not that bad. The FET operates in avalanche mode, same FETs are rated for this. (some info here: [www.irf.com], Googling may get better results)
View ArticleRe: Melzi 5V supply drain current?
Probably not, the regulator is an LM7805 with a rated output of 1A, you want to draw half of that in addition to Melzi's own consumption. You can pull it from the 5V pin of the extension header if you...
View ArticleRe: Melzi 5V supply drain current?
In dire need, one can add one on top of a screw connector. Take a 7805 in to-220, check pinout datasheet, bend the legs of V+ and gnd and put them in screw connector of Vin and screw them tight...
View ArticleRe: Multiple power source/multiple heater setup
At that size you should seriously consider running the heated bed off of AC. [www.omega.com] [www.omega.com] All you need is an SSR and a heatsink for it. They're pretty cheap on amazon. I drive 12x12...
View ArticleRe: Multiple power source/multiple heater setup
akhlut Wrote: ------------------------------------------------------- > At that size you should seriously consider running > the heated bed off of AC. > > [www.omega.com] > > >...
View ArticleRe: Multiple power source/multiple heater setup
So I did some reading up on SSR and I THINK I understand now. The idea would be to use the SSR as a switch to use the output from the RAMPS lower voltage as a switch to turn on and off the 110v...
View ArticleRe: Multiple power source/multiple heater setup
No, the MOSFET on the RAMPS board directly controls the SSR. The + and - leads from RAMPS connect directly to the SSR. Polarity must be maintained. Wire the neutral lead to the heated bed and the hot...
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