Re: Wire is Not Orange, But Not Bright Yellow Either
QuotecdruThe problem is sometimes screw terminals don't like to have multiple wires in there, especially close to what it physically can fit in the space. On my Mendel90 I used three wires into the...
View ArticleRe: How Hot the Heat Sinks Inside a PSU?
The 12V 25A oem supply I now use for my printer is fanless and so silent. I got it via ebay uk for less than GBP20. To use these supplies, you need to be comfortable with doing mains wiring and you...
View ArticleRe: How Hot the Heat Sinks Inside a PSU?
Quotedc42There is a thread in the Ormerod forum on modifying an ATX PSU to improve regulation on the 12V rail. Is this the thread? I read through it. Most was above my head without making a lot of...
View ArticleRe: RAMPS for BeagleBone
I actually had a quesiton regarding the board that you designed that is currently being sold through Pico. Is there a straightforward way to power the BBB from the CRAMPS board. I see that there is a...
View ArticleRe: How Hot the Heat Sinks Inside a PSU?
QuoteGarry Bartsch Quotedc42There is a thread in the Ormerod forum on modifying an ATX PSU to improve regulation on the 12V rail. Is this the thread? The thread I had in mind was this one...
View ArticleRe: RAMPS for BeagleBone
There are 5V screw terminals you can use to power the BeagleBone. The connection is wired directly to the 5V "barrel jack" on the 'Bone, so you can use either, depending on which is more convinent...
View ArticleRe: How Hot the Heat Sinks Inside a PSU?
Thank you. Most of that was over my head; obviously there are some very advanced people on this forum. Hopefully I'll eventually understand more of those types of discussions.
View ArticleRUMBA physical pin locations
I'm trying to find documentation on the physical pin locations on the rumba so I can do some customization within the marlin firmware. All the documentation on the reprapdiscount page is in the altium...
View ArticleRe: Can a "good" stepper motor blow the stepper driver?
I blew mine without visible cause. No changes done. So now I am rebuilding with Ramps on Arduino Mega, which is much cheaper than Gen6 However , also the opto's needed to be replaced due to the other...
View ArticleRe: Wire is Not Orange, But Not Bright Yellow Either
QuoteGarry Bartsch But are you referring to the screw terminal not liking multiple loose strands? I seem to remember some people mentioning they had trouble with soldered wires coming loose in the...
View ArticleRe: How Hot the Heat Sinks Inside a PSU?
QuoteGarry Bartsch Mostly I am concerned that the machine is quiet when it's not working because I don't turn it off between prints.What electronics are you using? RAMPS for instance can turn on and...
View ArticleRe: how to measure more than 500°C on the electronics ?
Thanks for the help, i ordered one from china now, couldn`t find a other source so may take some time ^^ i hope i get it running on the sanguino, seem`s that this MAX31855 has to be connected to the...
View ArticleRe: Melzi on a budget?
Well, so far, so good. The board (Elecfreaks) had the typical Chinese error of using 100k rather than 4.7k resistors for the bed and hotend thermistor hookups, but replacements were cheap and, after a...
View ArticleRe: Stepper motor randomly changing directions?
My prusa i3 motors only go in one direction, away from the endstops. cannot go closer to the endstops.If I press the endstops, the motors can turn reverse. Sames I meet the same problem. I use a Melzi...
View ArticleVariable resistor in line with heated bed
I'm building a heated bed, it will draw more current than ramps will allow, so I was wondering about the effect of putting either a pot or just a single resistor in series to raise the resistance so I...
View ArticleRe: Variable resistor in line with heated bed
Yes, the resistor will get very hot. As it's not got anywhere to radiate that heat like a heat bed (eg: an Alu or glass plate), it will most likely get hotter than the bed.
View ArticleRe: Variable resistor in line with heated bed
What do you expect the resistance of the bed to be? Can't you adjust the parameters of the bed design to increase its resistance?
View ArticleRe: Variable resistor in line with heated bed
It needs to be about 1.4ohm if used with RAMPS and half that if with the seven switch. I have a cunning plan though. As I need to halve it, I'm going to have two heating loops in series and just...
View ArticleSmoothie - ready for prime time?
I have (and loved) the Azteeg X3 1.0 on my mendel max but it finally bit the dust... I was thinking of buying the X5, I love the package - inexpesive and capable... however, when I looked at the...
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