Introduction along with some questions regarding LinuxCNC
- arijitdutta
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Now, coming to myself, this is my first CNC conversion. I dont have any CNC experience or associated electronics. Seeing Acorn, I am pretty sure I will be able to hook it up according to the schematics and videos that are up on youtube and also the software is pretty straightforward which is pretty easy for a newbie like me. I was looking into LinuxCNC and mesa board schematics as well for the last few days. It feels intimidating when it comes to things like 'HAL' and similar stuffs where I have to troubleshoot myself if things like the encoder dont work. Its not like that I am not willing to learn but it feels there is a hell lot to know. Does LinuxCNC have a steep learning curve or am I overthinking too much?
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- tommylight
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Find an old PC with parallel port, download the Wheezy ISO from the downloads page > old images/ISO, write it to USB, boot the PC from it, attach some cheap stepper drives and motors and make the machine work.
After you get some experience, then you will know exactly what you need to make it better, if you actually do need to make it better as it works perfectly well with parallel port.
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However, and to be honest, it is not tailored for beginners at all. That's where it fails dramatically.
You are not overthinking this; a significant amount of knowledge of HAL and Python will eventually be required.
I'm entering my 4th month of learning, research, config, tweaking this & that, and yet made a single part - just tests.
Lots of fun though. Zero complaints and no regrets.
Good luck
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I don't agree, you can get a simple machine up and running with very little extra effort.a significant amount of knowledge of HAL and Python will eventually be required.
It is usually the desire for more advanced features that will lure you into the steeper learning curve.
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Lcnc is for geeks (which I am luckily), and for dudes/dettes who dream and think like electrical engineers for some weird reason. Not for machinists and even less for beginners. There, some constructive criticism!!
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For beginners, sure. Worldsss and Universesss distant rather. Lots of work for the X and Z to move. Be warned lol
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- tommylight
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Although there is nothing absolute, That statement is absolutely true!There's simply no substitute to Linuxcnc in the customizable-ANY-hardware arena - second to none - hands down - five stars.
I absolutely agree with Aciera, LinuxCNC took 3 minutes flat to have a working simple stepper machine with parallel port, 15 years ago or more. Back then it was called EMC2.
I don't agree, you can get a simple machine up and running with very little extra effort.a significant amount of knowledge of HAL and Python will eventually be required.
It is usually the desire for more advanced features that will lure you into the steeper learning curve.
Now takes 3 minutes to have a working "not simple" cnc plasma machine.
I also agree with Mecanix as the info found on the net can easily steer you in the wrong direction and waste a lot of time "chasing rabbit footprints while the rabbit is watching you from behind a nearby tree"
And the main reason why it may seem hard or easy is the preexisting experience with related stuff.
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'modbus' , 'lincurve', 'screw comp', 'mpg probe': You don't need any of this for a 'simple' machine. I've refitted several production machines before I even considered any of that.
Why you would _need_ python for a simple lathe or mill I really don't know.
As for the wiring aspects, what do you expect? That LinuxCNC does that for you?
Have a look through all the posted refits and home built machines. Many of those wiring jobs will make anybody with even moderate knowledge in electrics/electronics cringe. Yet surprisingly most of them work just fine.
Don't get me wrong, refitting a CNC machine IS a complex task but if you keep your 'needs' and 'maybe nice to haves' separated then it really does not need to be anywhere near as complicated as you make it out to be.
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I'm just saying. It is so NOT for beginners and I'll stick with that. Personally, that HAL thingy drives me absolutely nuts. Hated it. Traumatized For Life in fact.
(ps thanks for listening everyone, feeling so much better now lool)
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