Re: CNC Mill Conversion Controller
An arduino wired to step/dir/en will give basic cartesian movements like that, and everything will run on it, arduino comms goes directly to computer usb, so that part of whatever control you have now...
View ArticleRe: What can damage stepper drivers?
There is a diode (D1) on the Ramps board that powers up the Mega board. If it's still in place, the Mega will come on whenever the Ramps is powered. If you have removed it then you can indeed power...
View ArticleRe: RAMPS for Due!
I realize that this is *way* to late (sorry about that!) - is there enough room around the big FET's for heat sinks? You can always use top clips. I'm wondering about wrap arounds. (yes there's a...
View ArticleRe: CNC Mill Conversion Controller
....... since this is a senior design project - what's the minimum you can do and still get the grade? Put another way, how complex does this need to get? You could indeed make it very complex, but I...
View ArticleRe: RAMPS for Due!
There should be enough room around Q201 for an ordinary U-shaped bolt-on heatsink (Q201 is the FET for the heated bed). Something like [www.digikey.com.au] or [www.digikey.com.au] for instance. Note...
View ArticleRe: RAMPS for Due!
Going to 2 ounce copper is the easy part. That's a standard enough process that the added cost is quite low in any sort of volume. Connectors are always odd beasts. They are temperature rise rated and...
View ArticleRe: CNC Mill Conversion Controller
Quoteuncle_bob ....... since this is a senior design project - what's the minimum you can do and still get the grade? Put another way, how complex does this need to get? You could indeed make it very...
View ArticleRe: RAMPS for Due!
Hello. Thank you very much for this board; I've ordered one from Geeetech. In the mean time, I've been porting my APrinter firmware to run on the Due. For testing, I've wired it manually with a...
View ArticleRe: RAMPS for Due!
ambrop7: Fortunately, if you've got any skill with a soldering iron, you can easily buy the necessary fuse holders and replace them yourself (assuming that the board isn't modified in any other way)....
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Re: RAMPS for Due!
Okay, SD card with APrinter/Due works now. Hopefully the RAMPS-FD will fix my spaghetti problem ;)
View ArticleRe: Please tell me I didn't burn out my Rambo Z-axis driver...
Related question (I hope)? I am building my second reprap with a rambo using a 24 volt p/s. Since I want to limit the amount of damage if I discover something about the 24 volt under fire, I wanted to...
View ArticleRe: Please tell me I didn't burn out my Rambo Z-axis driver...
There should be no problem with plugging in the board without motors attached. Of course there also should be no problem with plugging it in with motors attached if it's all set up right. If it's a...
View ArticleRe: CNC Mill Conversion Controller
I'd go for a Ramps / Mega combo for the electronics. That cuts out pc board layout and a lot of firmware work. It scales the project back to the point that you might actually be able to get it done. A...
View ArticleRe: Dual extrusion TB6560 controller
My last suggestion would be to think about current and trace width. With 5 steppers, a HBP, and two hot ends, you could be running 30 amps or more total. Make sure your power supply connectors can...
View ArticleRe: Please tell me I didn't burn out my Rambo Z-axis driver...
Anyone doing new designs should consider adding TVS diodes on the motor outputs to reduce the chance of frying electronics if you do make the mistake and plug/unplug your motors with power on that'll...
View Articleheat resistor
hello everyone recently i had to swapped out my print head because the gears broke. when i took the hotend of i accidentally snagged the heat resistor and it broke. i have been looking around for a...
View ArticleRe: heat resistor
When a resistor is rated at "3W" or "5W", that means it's capable of that level of power output, while in free-air, while maintaining it's properties within it's specification. We don't care so much...
View ArticleRe: Please tell me I didn't burn out my Rambo Z-axis driver...
QuotecharlieRC Related question (I hope)? I am building my second reprap with a rambo using a 24 volt p/s. Since I want to limit the amount of damage if I discover something about the 24 volt under...
View ArticleRe: Please tell me I didn't burn out my Rambo Z-axis driver...
While you are ohming out the motor windings - wiggle / (gently) tug the wires on the motor connectors. They occasionally don't get the wire stripped quite right. The net result is a motor that only...
View ArticleRe: heat resistor
If your hot end will accept one, a 40W 24V heater cartridge is a simple way to go. They are reasonably cheap and a bit more rugged than the resistor approach.
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