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Anyone just try using dxf2gcode?

I just got a little laser going and was a bit surprised there weren't more options. Nothing against paid software but it's alot easier to just try something out if it's open source.

I tried gcodetools for Inkscape, but I couldn't figure it out....probably just not patient enough. I went back and forth with dxf2gcode a couple of times and seems like I got it figured out. For some strange reason it doesn't have a plasma/laser configuration option, it's meant for mills I guess but I've never had the urge to use a DXF on my CNC mill so not sure it's really targeting the right group.

Anyway after some configuration that isn't quite obvious it seems I have it working pretty well. It does cutter comp but I don't bother since a diode laser kerf is pretty small.

Been reading about Flexible this morning -- this looks like a good project!

Couple of questions, though.

I assume that if one found a UI that was close, it would be easy to modify, right? There's no reason for everyone to start from scratch?

Is there a gallery of sample UI screenshots? For that matter, is there a repository of completed interfaces from users?  (I realize this is a relatively new project, so I may be overestimating the user base.    I've been using Axis for 20 years, but other than adding my own pyvcp panel for probing and a few other things, my needs are very simple.  Probably similar to the UI shown by @109jb four (or so) posts back.

The .ini and .hal files for my DIY mill (3 axis, very simple) were (re)generated by pncconf. To try Flex, I guess I'd create a new mill directory, copy my conf files, and edit the DISPLAY section to point to Flex? Just trying to get a handle on the "getting started" part.

Finally:  how stable is the project?  @JT -- are you running it yourself, all the time?  (I think that's necessary but not sufficient as a gauge of stability --  sers always find bugs that developers don't, of course.)

I forgot to say thanks to bkt for testing that out, it's good to know that that stuff at least somewhat works.

I got busy with other things and set my DIY  PnP machine off to the side for a while but I just recently resurrected it as a laser cutter that can be swapped back to a PnP once I make a universal head for it.

Not sure how long it will be until I get back to the PnP thing but I really wish there was more activity with the PnP stuff in LinuxCNC. Since I don't actually own a PnP I never actually used one so it'll be a bit daunting if I have to pick this up from scratch.

Kind of surprising there isn't more activity with PnPs in LinuxCNC, it can already do almost everything it would need to without all the weird pseudo Gcode nonsense that OpenPnP uses. With all the cheap PCB manufacturers these days, you'd think we'd all be building PnPs.

tommylight wrote:

Where are you getting the info?
No DC side relays nor switches!!!
Never switch the DC side, unless you're in the solar panel business.
 

Hi tommylight,

I apologise, I rechecked the diagram (or rather picture) I drew before posting the question, I have the miniature circuit breaker between the input AC power outlet and the Mean-Well MDR-100-24 PSU... My question was completely wrong.

I learned above circuit breakers via the articles below, and other YouTube videos:

Choosing the Right Circuit Breaker for Your Electrical Needs

Main Difference between Fuse and Circuit Breaker

Tripping Curves of Circuit Breakers – B, C, D, K and Z Trip Curve

(These articles and the videos have nothing to do with my bad question.)

Can you please help me selecting the right circuit breaker to use with the Mean-Well MDR-100-24 PSU, in term of Current Rating and the Voltage Rating?

-- I understand that since this AC, and the Australian voltage rating is 240V, so it should be 240V?

Thank you and best regards,

...behai.

 

Anyone running Flex on a machine yet?

I all the sudden had a need for a small laser cutter and just happened to have a small Pick-N-Place machine I built like a year and a half ago. I couldn't really get LinuxCNC and OpenPnP to play nice together at the time so the PnP has been collecting dust since......

Now that wannabe Pick-N-Place is a universal Pick-N-Place / Diode laser. Needed a GUI for it so I repurposed the other Flex GUI I was working on specifically for the laser. I've been more worried about making it functional than super pretty but it's certainly doing the job.

Thanks again to JT for making things easy for us code handicapped folks

 

 

thanks for the hint!

that would be basically that what is done at that step (in homing.c in comp file from your link i did not find that part yet)?


BR
Dominik
edit (april10th): that got me a big step further, but besideds mapping pos_fb to pos_cmd (which worked for most of the sequence), i also had to change the ferror_limit in some steps as there may be abrupt changes due to position-values reset to home or zero  position.

not yet finished but i think i can solve it that way -> thanks again

Hello,
I'm a bit new to 4-axis machining and I've been machining features on axles. These axles were mounted on the A-axis. Fine.
But now I've clamped my ER32 collet block at 90° to the A-axis, with the nut facing upwards to secure my stock.
But I can't know his exact position until I lock it in the ER32 block because it moves downward when I tighten it. So I have to probe it.
I then need to use this measured value to set the part's origin in the CAD software to create the milling path. This is tedious and must be repeated every time I place a stock in the ER32 block.
Is there a way to avoid having to generate the program from the measured value?

jenkinson8 post=325911 userid=42861Teraz som späť doma. Príkaz, ktorý hľadáte, je:

[code]pip3 install tftpy --break-system-packages

Then rerun the upload_config.py command again.
 
 Its okay. Thanks

[/code]

timo wrote:

A not properly crimped plug or semitight srew termnial might cause a problem as well?
 

Yes.

timo wrote:

Or does the damage only occur when all four wires are disconnected at same time?
 

Any motor wire.

timo wrote:

I would guess the system does not know if I did it or it just happened.
 

What system? The drive will know, motors are inductors and disconnecting powered inductors cause huge spikes that very often end in dead equipment.

i just measured the bearing OD and the housing bore diameter, and the housing is a good .002 larger than the bearing OD. the shaft is either pressed into the ID or it got that way when it broke? the bearing feels like it is spinning just fine so i don't think the bearing was the root cause. the break was right at the shoulder where the bearing would ride and seat on the shaft. no wave washer on the front side and it does not feel like it has one on the other end either.

OP - That's a nice harmonic drive you've got there, especially with the big through-bore.

If you still need some mounting inspiration, Andy Pugh did a fantastic job of documenting his 4th axis build based on similar reducer.

machinedude wrote:

the only other clue i can offer up at this point would be the fact that the bearing was not pressed in the motor housing. it came right out so maybe a poor press fit added to this?

Bearings are quite often an interference fit on the shaft but close sliding (or transitional) fit in housing.  Makes assembly easier, especially in production environments.  Interference fits on both the shaft and housing make assembly a nightmare.

Frequently for smaller motors a spring/wave/Belleville washer is used inside one housing end to permit the bearing to move axially as the rotor shaft grows (from heat).  That spring preload also tends to keep the bearing outer races from spinning in the housing bore.

If the bearing was a fairly sloppy fit in the housing there was very little resistance to shaft bending and all the movement would have been concentrated at the shaft bearing seat shoulder.

Andy's suspicion about a fatigue crack from shaft misalignment is looking pretty darn persuasive to me.

Hi,

I've built an CNC router with MESA7I96 controller. I use an Pi5 for running linuxcnc and it works fine. Until this time I used Fusion360 for CAM, but I'm thinking on to try Vectric Pro.

Vectric has any metric post processor for linuxcnc? If yes, which one you use?

It's always fun to poke fun at the Septics, tho they seem to encourage it when some of the louder ones don't realise that other countries do things their own way and will argue the point.

A not properly crimped plug or semitight srew termnial might cause a problem as well?
Or does the damage only occur when all four wires are disconnected at same time?
I would guess the system does not know if I did it or it just happened.