SVP, j’ai fabriqué mon propre laser engraver et je rencontre un problème. Le laser s’allume et commence son processus d’engravure, mais il ne grave rien sur le matériau. J’utilise un laser de 500mW. Est-ce que quelqu’un pourrait m’aider à diagnostiquer le problème ou me donner des conseils pour résoudre cette situation svp!
Bonjour, 500mW c’est assez faible pour un laser de gravure. S’il s’allume mais qu’il ne grave rien, c’est surement un manque de puissance ou une vitesse trop rapide. Tu as testé avec quels paramètres de puissance et vitesse ?
Tu utilises quel logiciel ? $30 est bien sur 1000 ? (si Lightburn : S-Max dans les paramètres de la machine est bien sur 1000 aussi?)
@benmaker, merci pour votre réponse.
Oui, j’ai réglé les deux paramètres Smax et $30 à 1000. J’utilise le logiciel LaserGRBL en version 5.4.0.
Voici le fichier G-code (Lasergrbl) de la pièce que je veux graver.
S0
G0X22.517Y38.365
S1000
G1X22.546Y38.374F1000
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X41.4
X34.7
X10.6
X3
X2.941
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X13.18Y22.509
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X15.307Y26.192
X15.573Y26.652
X15.838Y27.113
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X17.429Y29.878
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X20.161Y34.607
X20.44Y35.081
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X20.999Y36.028
X21.139Y36.264
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X22.388Y38.305
X22.42Y38.323
X22.452Y38.341
X22.485Y38.355
X22.517Y38.365
S0
M5 S0
J’ai un autre laser plus puissant : le module laser de gravure 3D Sovol 40W. Cependant, je ne l’ai pas encore testé, car pour le moment, j’utilise la carte CNC Shield V3.0. Je ne sais pas encore si cela peut fonctionner avec cette carte, car il n’y a vraiment aucune information sur son branchement…!
@rim C’est un beau triangle gravé a 100% de puissance et 1000mm/min 🙂
Si ça ne grave rien, essaye de réduire beaucoup la vitesse pour voir, genre 50mm/min.
Si toujours rien envoi tes paramètres GRBL. ($$ dans la console)
@rim Ok il sera peut-être plus adapté, par contre ce n’est pas un 40w, c’est 5w en sortie optique 😉 Mais c’est toujours 10x plus puissant que l’autre.
@cedric-nouris tu auras peut-être des infos sur le branchement d’un laser sur la CNC Shield 😉
Toujours rien… :(!
>>> $$
$0 = 10 (Step pulse time, microseconds)
$1 = 25 (Step idle delay, milliseconds)
$2 = 0 (Step pulse invert, mask)
$3 = 0 (Step direction invert, mask)
$4 = 0 (Invert step enable pin, boolean)
$5 = 0 (Invert limit pins, boolean)
$10 = 1 (Status report options, mask)
$6 = 0 (Invert probe pin, boolean)
$11 = 0.010 (Junction deviation, millimeters)
$12 = 0.002 (Arc tolerance, millimeters)
$13 = 0 (Report in inches, boolean)
$20 = 0 (Soft limits enable, boolean)
$22 = 0 (Homing cycle enable, boolean)
$21 = 0 (Hard limits enable, boolean)
$23 = 0 (Homing direction invert, mask)
$24 = 25.000 (Homing locate feed rate, mm/min)
$25 = 500.000 (Homing search seek rate, mm/min)
$26 = 250 (Homing switch debounce delay, milliseconds)
$27 = 1.000 (Homing switch pull-off distance, millimeters)
$30 = 1000 (Maximum spindle speed, RPM)
$31 = 0 (Minimum spindle speed, RPM)
$32 = 1 (Laser-mode enable, boolean)
$100 = 11.429 (X-axis travel resolution, step/mm)
$101 = 4.000 (Y-axis travel resolution, step/mm)
$102 = 250.000 (Z-axis travel resolution, step/mm)
$110 = 50.000 (X-axis maximum rate, mm/min)
$111 = 50.000 (Y-axis maximum rate, mm/min)
$112 = 50.000 (Z-axis maximum rate, mm/min)
$120 = 0.100 (X-axis acceleration, mm/sec^2)
$121 = 0.100 (Y-axis acceleration, mm/sec^2)
$122 = 0.1000 (Z-axis acceleration, mm/sec^2)
$130 = 200.000 (X-axis maximum travel, millimeters)
$131 = 200.000 (Y-axis maximum travel, millimeters)
$132 = 200.000 (Z-axis maximum travel, millimeters)
Clique pour agrandir
Clique pour agrandir
Branchement sur CNC shield!
Clique pour agrandir
@rim Tout a l’air ok dans GRBL.
Pour le câblage, le pwm sur le Z+ et du 12v / masse vers la carte de contrôle du laser normalement.
oui, c’est ce que j’ai fait. Mais toujours rien!
C’est quel firmware sur la carte ? vérifie l’ordre des fils du laser par rapport aux datasheet de la carte je sais que j’ai eu des inversions lorsque j’ai fait mon test avec une ramps 1.4
@cedric-nouris Bonjour, je te remercie pour ton retour.
J’utilise grbl firmware. Je ne suis pas sûr si j’ai fait une bêtise au niveau du branchement sur ma carte cnc shield v3…
@rim J’avais pas fait attention mais tu as câblé la masse du laser sur le Z- ? Normalement elle va sur le GND, c’est uniquement le PWM qui va sur le Z+ (ou Z-). Z+ et Z- sont reliés au même pin il servent normalement a brancher un interrupteur pour détecter le contact.
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