Re: Question about 3d printer electronics, power supply
Let me know how that hot end works out. I have a peek jhead on mine. However I am on a quest to make all things metal on my printer. I have been looking at that hot end for a while wondering if it is...
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Drill bit and sand? What exactly is that accomplishing? Drill undersized and use a reamer
View ArticleRe: Where to go to buy Mega2560 R3?
Quotettttrigg3r Model Prusa i3 This is probably the millionth time someone asked this question, but where should I turn to for the Mega board? My first printer I built with the kit bought from...
View ArticleRe: Question about 3d printer electronics, power supply
I measured the resistance of the heat bed and it was 2.4 ohms, that is double the resistance of 1.2. That was between pins 1-3 and 1-2, the resistance was the same for both. Will the resistance go...
View ArticleRe: Where to go to buy Mega2560 R3?
Quotettttrigg3rwhere should I turn to for the Mega board? An Arduino Mega? From Arduino, of course. Odd question.
View ArticleRe: Motors do little steps, not big ones.
QuoteUkIan1) How do I ascertain what level of microstepping I require? There's no fixed requirement, in principle all settings work. That said, 1/16 for belt driven axes and 1/8 for threaded rod...
View ArticleRe: Where to go to buy Mega2560 R3?
Buying an original Mega2560 from Adafruit, Sparkfun, or Arduino will run something like $65 I believe, but you are buying an official Arduino, supporting the original creator, and can have confidence...
View ArticleRe: Where to go to buy Mega2560 R3?
Mine says its made in italy....... yahhhh. The rule is you do get what you pay for. My arduino has been flawless. It has been working its butt off on my printer and has not shown any signs of...
View ArticleRe: Motors do little steps, not big ones.
Excellent guide. Thank you for that. Fingers crossed I'll be up and printing this weekend :D
View ArticleRe: Where to go to buy Mega2560 R3?
If you're in the USA, most Radio Shack locations around me have pegboards full of what I believe is the real deal Mega 2560 R3 for $59.99: Radio Shack - You've got questions? We've got blank stares!...
View ArticleRe: Nema 34 steppers with DQ860MA on Ramps 1.4 DIR pin issue
Limit switch end stops, best/safer if they were wired normally closed, I'm not sure what is recommended for the optical. End Stops: Magnetic Hall Sensor, Auto level probe. Would an optical sensor be...
View ArticleRe: Question about 3d printer electronics, power supply
I had an almost identical setup on my Rostock. Yes, it will power it, but not for long. Many rated specs for parts are actually a bit off and this goes double for cheap Chinese power supplies. Bed,...
View ArticleRe: Driving a DC PCB heated bed with AC mains?
I might be wrong but I think that you are missing a point . If you want to get 100 Watt from a 48 Watt resistance you will overheat the resistance and in a short time it will burn. If you want to go...
View ArticleRe: Driving a DC PCB heated bed with AC mains?
QuotelucamaxIf you want to get 100 Watt from a 48 Watt resistance you will overheat the resistance and in a short time it will burn. Not if you apply better cooling than still air or stop heating when...
View ArticleRe: Driving a DC PCB heated bed with AC mains?
IMHO you are wrong, extruder resistors do not burn because there is a dissipator and the temperature do not reach high values for the resistor, but in a bed heating plate you cannot put a dissipator....
View ArticleRe: Motors do little steps, not big ones.
It's working, but I don't know why. The Z is not doing what I expect. I've had to change my steps per unit to: #define DEFAULT_AXIS_STEPS_PER_UNIT {80,80,2000,237} Where 4000 is expected. In...
View ArticleRe: Question about 3d printer electronics, power supply
Quotesheepdog43 What I actually found I like best when I was using Ramps, was using a small 6 amp power brick for the electronics, and a separate 10amp brick for the bed. The bed power brick died...
View ArticleRe: Question about 3d printer electronics, power supply
That is 20amps peak. PSU's are rated in total wattage/amperage. Someone mentioned fires with these chinese units as well, be careful. To rehash the psu notion around here. Here are some possible...
View ArticleRe: Question about 3d printer electronics, power supply
Quotetanner331 So to wire it this way should I connect the 20 amp power supply to the 11 amp input on the ramps and the small power supply to the 5amp input on the ramps, or is there something else I...
View ArticleRe: Question about 3d printer electronics, power supply
I bought a second power supply today, it is a dell 12v 16amp PC power supply, I got it from a local computer repair shop for $20. I decided to get this one because I could continue working on my...
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