not a CNC,,

Bob_Atl

Well-known member
Enjoyed sgt_Mikes thread of CNC on wood ( CNC.. ), wish I had his CNC equipment.
That thread started me thinking..
I do have a 3DP, so gave it a try with PETG plastic 100mm coaster, takes about an hour to print:

coasterPETGb.jpg
 
Your visual is in the direction that my input with Sarge has been directed. The choice of natural wood brings in some variables, as does tooling and software / equipment limitations and dealing with how the grain in the wood impacts the artwork and text.

I think Sarge is getting there, and if he can somehow add contrast to his engraved portions it will be the turning point of his project.

It’s been fun throwing ideas back and forth and seeing how he is working his way through the bumps along the way. And for the record, I work in the graphics field and a small portion of my trade involves engraving aluminum panels for the transit industry, and operating abrasive water jet equipment.
 
hunt0168 " You be da Expert here " .. and ya natural wood is worthy of all the extra effort !
Oh, I'm not an expert by any stretch of the imagination! It's more of an unfortunate duty thrown at me by my employer who needed an old dog with half a brain to operate "mechanical" equipment that took a little bit more skill than typing on a keyboard to operate. Lets just say that some damage occurred with the computer geniuses that don't know what a callus is! Lol...

My expertise is as a Graphics screen printer. Again, it's pretty much a dying trade with all of the new digital printing equipment. It's great technology, but luckily for me, it cannot "yet" print on all of the various substrates and meet the various environmental exposure and weatherability or abrasion resistance requirements that good ole' screen printing can achieve. It's another trade that the youngens want no part of. You get ink on you. You need to manually setup and tear down. You need to turn knobs and manually adjust things based on what you see in your prints. And the big one... You need to be able to accept that if the end product doesn't look good, that it's your fault and you can't blame it on a computer glitch! Lol...
 
wish I had his CNC equipment.
LOL sometimes this Genmitsu is a royal pain....
That Bob is excellent... I like it!!
The Printers can do what a Router can't. The CO2 plasma is the same way. And the opposite is true. each one has their strengths and weaknesses.


@Bob_Atl
I'm asking because I "think" I know the answer , the language for your printer is it Grbl ?
looks something like:
M3 S12000; Start Spindle
G4 P8; Wait 8 seconds for spindle to spin up to speed

G0 Z10; move to z-safe height
G0 F1000 X45.4215 Y0.5097

G0 Z0
G1 F350 Z-0.0000; Direct Plunge
G1 F2000 X46.3425 Y0.5386 Z-0.0000 S12000
G1 F2000 X47.2628 Y0.5868 Z-0.0000 S12000
G1 F2000 X48.1818 Y0.6543 Z-0.0000 S12000
G1 F2000 X49.0993 Y0.7410 Z-0.0000 S12000
G1 F2000 X50.0147 Y0.8470 Z-0.0000 S12000
G1 F2000 X50.9277 Y0.9720 Z-0.0000 S12000
G1 F2000 X51.8378 Y1.1162 Z-0.0000 S12000
G1 F2000 X52.7448 Y1.2794 Z-0.0000 S12000
G1 F2000 X53.6481 Y1.4615 Z-0.0000 S12000

But Like I said I really do like your make up of the project. I had typed a BUNCH of things then before posting realized I would be stealing the thread. Which would not be my intention.
 
Really close but no, apparently GRBL (used in CNC) is similar but different than GCODE (used in 3DP).
from google: "While G-code defines what the machine should do, GRBL is the software that executes those instructions on the hardware level"
To me, sounds like GRBL uses some of the GCODE commands(syntax) but it talks directly to the CNC processor in more detail.

How do you generate a GRBL file ?
I use OrcaSlicer for the 3DP GCODE files.
The other popular 3DP slicer is within Bambu Studio, as a part of their closed proprietary system (Apple-ish).
Funny thing is most 3DP-OEMs take the same basic slicer then put their own spin on their special version.
So ends up most 3DP slicers look alike, with a few twists..

As an aside, Bambu Labs has a makers www site with several neat apps.
Anyone can create an account and use their apps for free.
One of those apps (AI) created the yote relief in the coaster above from a simple *.jpg : MakersWorld-link


PS: Don't worry about thread stuff, its all interesting, to me at least.
 
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further, from google : "While standard G-code includes a wide range of commands, GRBL supports only a subset of these, excluding features like automatic tool changers, multi-axis helical arcs, and certain advanced spindle or coolant controls."

also: "While OrcaSlicer does not have a specific "GRBL output" option, the standard G-code it exports is fully usable with GRBL-controlled systems."

I didn't know that !!
 
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