Thanks... reading it now. :)
Type: Posts; User: __Britt
Thanks... reading it now. :)
Pete - I think you might have already posted it, but - what's your thoughts on a drastically different size ratio; like mixing in pea gravel (or similarly sized crushed granite or quartz or...
You're going to have rigidity problems. I would consider adding a linear actuator of some sort to the far end of the crane arm.
As for a control, you will need to do some programming to make this...
The disk drive power connectors in the PC will have +5v, +12v, and ground connections on it. You can get a drive power extension cable, clip off the side you don't need, and use that to gain access...
Well, FWIW, I'll just throw this into the mix... this is what I've been working on. It's still a work-in-progress, and even when finished won't be appropriate for everybody (is anything ever, though,...
Is this on a breadboard? I'm just guessing, but I suspect that the total capacitance (components + stray capacitance from the breadboard itself) might be pushing it into oscillation? According to the...
If I were still running a Windows based CNC (I'm not - I'm running custom version of Grbl-Mega), I wouldn't have it on the internet at all - and therefore, wouldn't need anti-virus software on it.
...
Well, it's not a Tormach, but for my Shizouka AN-S (really big CNC knee mill) I'm just using regular liquid-tight flex conduit I get at Lowe's or Home Depot.
I can't seem to find the datasheet for the TL421... Digikey, Mouser, and Octopart don't turn up anything; and google seems to be under the impression that it's a front-loader for a Kubota tractor.
...
USB doesn't have TX and RX; it has D+ and D- lines. It's a differential bi-directional data link.
https://en.wikipedia.org/wiki/USB
https://en.wikipedia.org/wiki/USB_hardware
I'm just guessing, but perhaps there's a crack in the sensor somewhere (PCB, coil, etc) and when it's cold it shrinks just enough to cause a problem?
Given the situation, and the ridiculous price they are charging; I'm thinking that an open-source reference design for a retrofit made from common, inexpensive parts would likely be a useful thing to...
The short answer: you can't directly feed a DXF to a machine tool. It doesn't contain enough information.
The long answer: DXF files contain the outlines of a part; but do not contain any...
You don't want to know how many PCB "coasters" I've got around here...
Intermittently wouldn't be recognized properly by the OS; wouldn't be recognized properly by the Arduino IDE (didn't show...
Note that this is only true in an apples-to-apples comparison. Changing the system topology sometimes requires (or enables) a change in components; the effect of which can overwhelm the effect of the...
I know what you mean... not that it helps you, but this is one of the major things that drives me to either open-source solutions, or building my own from scratch.
As nice as direct-drive servos are; I'd give some thought to using a hydraulic drive; an encoder; and a solenoid valve. I'm suspecting that it may turn out to be lower cost...
Eh, no problem. I've actually been a bit busy myself - but with the opposite problem: I spent the weekend driving a tractor around collecting brush & dead tree limbs & piling them in a dumpster so...
Um... which SAMD21 dev board did you get?
That depends on the chip's input, the noise tolerance & environment it's in, and how fast the edges of the signal need to be. Typically, I start taking a second look at things when I'm seeing values...
Yes, but it's also possible to go too far with this and not have enough current going thru it to drive the chip's input; and as the current goes down, noise goes up. Also, do keep in mind that the...
Check the voltages with respect to the system ground with a multimeter (and on the encoder connections; be sure to rotate the encoder while watching the meter). For protection, you could put some...
Most CNCs don't have this; and rely on the mechanical parts to be rigid and tight. It's usually only found on higher-end machines; and you won't find that on Aliexpress.
How many HP (or Watts)...
Actually, no - you don't have to go past the switch, you just go up to it; and now you know that you are in "rotation zero" of the ballscrew. Then, go forwards (away from the switch) until the I...
The exact details depend on the controller.
Most software step-and-direction based controllers that I am aware of fire the step signals simultaneously (or very near to it); with the result that...
The datasheet doesn't indicate that it can do that.
From the datasheet:
So, it looks like that it can control how fast the motor is turning, but not where it's going to - that would have to...
"The difference between screwing around and science is writing it down." - Adam Savage. ;)
I've never used this method (er, not yet - I've got plans, er, schemes, um... crazy notions? for...
Nope. No need to for what I do. Also, compatibility (well, ease of use, really) with the standard Arduino workflow is important for anything I intend to release as open-source.
Now, if I was doing...
The official version of Grbl on ARM is not out yet. You'd have to use something like this; which is a 3rd party effort: https://github.com/terjeio/grblHAL
I have not tried to use it yet; so I...
How about using rivet nuts? I'm assuming of course that he can order them & the requisite tool without paying an excessive amount in shipping?