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--- en:tinkering:laser:eleksmakera3pro [2017/11/05 00:59]
alessio.cavalieri [Resources]
+++ en:tinkering:laser:eleksmakera3pro [2020/10/20 15:41] (current)
alessio.cavalieri [Blog]
@@ Line 1: / Line 1: @@
 ====== EleksMaker EleksLaser-A3 Pro ======
+===== Blog =====
+  * 2020 october 20: added [[en:tinkering:laser:eleksmakera3pro#power_and_speed_settings|Power and speed settings ]] section
+  * 2017 december 18: Improved the smoothness of the X carriage, $110=5000 and $111=5000 for setting the max speed to 5000 mm/min in GRBL
+  * 2017 december 13: Added smoke blower and pimped up step drivers current, heat sink installed on Allegro chip
 <note warning>
 Warning!!! After flashing the Mana SE Arduino clone With GRBL firmware, if you disconnect USB or lost communication with the PC (serial disconnection) the laser fire!!!
@@ Line 13: / Line 19: @@
   - unwear the laser protection goggles
 </note>
+===== Power and speed settings =====
+==== 2500 mW Laser Diode ====
+=== Vector letters outline / thin outline ===
+^  Material  ^  Laser Power (%)  ^  Passes  ^  Cut rate (mm/min)  ^  Example  ^
+|  Plywood  |  20  |  1  |  500  |  {{:en:tinkering:laser:2-5w_laser_vector_letters_outline_plywood_3mm.jpg?200|}}  |
+=== Vector letters fill path ===
+^  Material  ^  Line Distance (mm)  ^  Laser Power (%)  ^  Passes  ^  Cut rate (mm/min)  ^  Example  ^
+|  Plywood  |  0.1  |  20  |  1  |  1000  |  {{:en:tinkering:laser:2-5w_laser_vector_letters_fill_path_plywood_3mm.jpg?200|}}  |
+=== Cut ===
+^  Material  ^  Thickness (mm)  ^  Laser Power (%)  ^  Passes  ^  Cut rate (mm/min)  ^  Example  ^
+|  Plywood  |  3  |  50  |  8  |  80  |  {{:en:tinkering:laser:2-5w_laser_cut_plywood_3mm.jpg?200|}}  |
 ===== GRBL settings =====
 I'm using the machine with GRBL firmware and LaserWeb4 PC frontend instead the original EleksCAM (called somewhere Elek-SCAM 8-) )
@@ Line 21: / Line 42: @@
 The setup that i've used is based on this useful wiki article: https://github.com/LaserWeb/LaserWeb4/wiki/2.1-Initial-Configuration-GRBL-1.1
+Latest update of the GRBL settings: December, 12 2017
 <code>
 $0=10      ;Step pulse, microseconds
-$1=25      ;Step idle delay, milliseconds
+$1=100      ;Step idle delay, milliseconds
 $3=1       ;X axis direction inverted
 $10=0      ;send work coordinates in statusReport
@@ Line 30: / Line 53: @@
 $31=0      ;min. S-value
 $32=1      ;Laser Mode on
-$100=160   ;steps/mm in X, depending on your pulleys and microsteps
+$100=80   ;steps/mm in X, depending on your pulleys and microsteps
-$101=160   ;steps/mm in Y, depending on your pulleys and microsteps
+$101=80   ;steps/mm in Y, depending on your pulleys and microsteps
-$102=160   ;steps/mm in Z, depending on your pulleys and microsteps
+$102=80   ;steps/mm in Z, depending on your pulleys and microsteps
-$110=10000 ;max. rate mm/min in X, depending on your system
+$110=5000 ;max. rate mm/min in X, depending on your system
-$111=10000 ;max. rate mm/min in Y, depending on your system
+$111=5000 ;max. rate mm/min in Y, depending on your system
-$112=10000 ;max. rate mm/min in Z, depending on your system
+$112=2000 ;max. rate mm/min in Z, depending on your system
-$120=1000  ;acceleration mm/s^2 in X, depending on your system
+$120=400  ;acceleration mm/s^2 in X, depending on your system
-$121=1000  ;acceleration mm/s^2 in Y, depending on your system
+$121=400  ;acceleration mm/s^2 in Y, depending on your system
-$122=300   ;acceleration mm/s^2 in Z, depending on your system
+$122=400   ;acceleration mm/s^2 in Z, depending on your system
-$130=400   ;max. travel mm in X, depending on your system
+$130=390   ;max. travel mm in X, depending on your system
-$131=300   ;max. travel mm in Y, depending on your system
+$131=297   ;max. travel mm in Y, depending on your system
-$132=100   ;max. travel mm in Z, depending on your system
+$132=200   ;max. travel mm in Z, depending on your system
 $$         ;to check the actual settings
 </code>
@@ Line 47: / Line 70: @@
 For a reference, please read [[https://github.com/gnea/grbl/wiki/Grbl-v1.1-Configuration#grbls-xval-settings-and-what-they-mean|Grbl's $x=val settings and what they mean]] on the official GRBL wiki.
+===== Hardware settings =====
+The VREF on the Allegro A4988 by factory is 0.6V, i have set the VREF to 0.82V, The motors for now are cool, but i've mounted the heat sinks on the drivers.
+{{:en:tinkering:laser:allegro_a4988_heat_skink.png?400|}}
+===== Hardware modding / improovements =====
+==== Smoke blower fan ====
+By using [[https://www.thingiverse.com/thing:2467964|this useful thing]] shared by [[https://www.thingiverse.com/MiguelBi|MiguelBi]] on [[https://www.thingiverse.com/|Thingiverse]] i have attached a fan on laser module in order to blow away the smoke from the optics.
+{{:en:tinkering:laser:smoke_blower_1.jpg?400|}}
+{{:en:tinkering:laser:smoke_blower_2.jpg?400|}}
+==== Improved the smoothness of the X carriage ====
+By using [[https://www.thingiverse.com/thing:2482004|this useful thing]] shared by [[https://www.thingiverse.com/nottingham82/about|nottingham82]] on [[https://www.thingiverse.com/|Thingiverse]] I have greatly improved the smoothness of the X carriage.
+{{:en:tinkering:laser:eleksmaker_x_carriage_tension_mod_before_after.jpg?400|}}
+{{:en:tinkering:laser:eleksmaker_x_carriage_tension_mod_detail_1.jpg?400|}}
 ===== Resources =====
   * GRBL releases (pre-built HEX): https://github.com/gnea/grbl/releases
   * LaserWeb binaries: https://github.com/LaserWeb/LaserWeb4-Binaries
   * Useful video about GRBL + LaserWeb on YouTube: https://www.youtube.com/watch?v=psnbSPrdy0I&feature=youtu.be
+  * 40 mm smoke fan blower: https://www.thingiverse.com/thing:2467964
+  * X carriage tension adjuster: https://www.thingiverse.com/thing:2482004
+  * How to buy: https://www.banggood.com/2500mW-A3-30x40cm-Desktop-DIY-Violet-Laser-Engraver-Picture-CNC-Printer-Assembling-Kits-p-1003863.html?rmmds=myaccout-bottom-latestwishlist&p=GX03116123132014067E&cur_warehouse=CN
+  * Interesting: [[https://reps.cc/?p=5|Marco Reps mods on EleksMaker laser: Trinamic stepper drivers - SilentStepStick TMC2130]]

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