94 lines
6.4 KiB
Markdown
Executable File
94 lines
6.4 KiB
Markdown
Executable File
Tabletop computer terms - move over means to use the touch pad to move
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the arrow on the display to the described position click on means to
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move the arrow to the described position & then press either click
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button type means to type what is described type: means to type the
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characters that follow the space after : enter means to type what is
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described (if anything) & then press the Enter key (at right) enter:
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means to type the characters that follow the space after : & then press
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Enter insLaserK40 Instructions for the K40 laser cutter (cheap Chinese
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laser cutter) - Nov. 1, 2019 1. Make sure the laser cutter POWER switch
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(top panel) is in the OFF position (bottom side down) 2. Make sure the
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SAFETIES switch on the laser cutter is in the ON position 3. Make sure
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the float switch with 2 ping-pong balls in it is in the bucket in the
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cabinet under the laser cutter 4. Make sure the pump is in the bucket 5.
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Make sure the end of the 2nd plastic tube (drain line from laser tube)
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is in the bucket 6. If water in the bucket does not push the ping-pong
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balls up so they close the switch at the top of the float switch add
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water until they do (note that the switch is finicky & it may later be
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necessary to jiggle the ping-pong balls to get the switch to close) 7.
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Make sure the pump is plugged into the power strip at the top right in
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the cabinet 8. Make sure the exhaust fan is plugged into the power strip
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9. Make sure the computer is plugged into the power strip 10. Make sure
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the power cord for the laser cutter (coming down into the right rear of
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the cabinet) is plugged into the power strip 11. Make sure the other end
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of the power cord is plugged into the back (right side) of the laser
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cutter 12. Plug (an extension cord is needed) the white power cord
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coming out of the top of the cabinet under the laser cutter into the
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long power strip to right of the KILL SWITCH ULTIMAKER WORKBENCH LASER
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CUTTER sign 13. Switch on the power strip to right of the KILL SWITCH
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sign 14. Switch on the power strip in the cabinet under the laser cutter
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15. Make sure the exhaust fan is running 16. Lift the 2nd plastic tube
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slightly out of the bucket, make sure water is flowing out of it, &
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replace it 17. Place the material to be cut in the laser cutter 18.
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Switch the laser cutter POWER switch ON 19. For manual operation set the
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CONTROL switch to MANUAL 20. Turn the LASER CURRENT knob all the way
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counterclockwise (off) 21. Push the LASER switch to the FIRE position
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(it will only fire as long as it is held there) 22. Turn the LASER
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CURRENT knob clockwise until the LASER CURRENT meter reaches the correct
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level (maximum is about 15mA) 23. When finished turn the LASER CURRENT
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knob all the way counterclockwise 24. Turn the POWER switch OFF 25. Turn
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off the power strip under the laser cutter 26. Unplug the extension cord
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from the power strip to right of the KILL SWITCH sign insLaserK40maint
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To adjust the stationary mirrors - Oct. 8, 2019 1. If moving part of the
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mirror forward loosen the nuts on the bolts on the back of the mount 2.
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Loosen the bolt on the side of the mount that part of the mirror is to
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be moved towards 3. Turn the bolt on the opposite side clockwise to move
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part of the mirror in the desired direction 4. Repeat steps 1-3 if
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needed 5. Tighten the bolts on the side the mirror was moved towards 6.
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Tighten the other bolts 7. Tighten the nuts on the bolts on the back To
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control the Smoothieboard directly from a tabletop computer using
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minicom (minicom should already be installed; if after step 7 the
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display states bash: minicom: command not found see
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wiki.hacdc.org/index.php/Documentation-Tabletop_computers for
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instructions) - Dec. 26, 2019 1. Unplug the laser cutter computer USB
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cable from the back of the Smoothieboard 2. Connect another USB cable
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from the tabletop computer to the connector in the back of the
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Smoothieboard 3. Turn on the computer & log in (see
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Documentation-Tabletop_computers for detailed instructions) 4. Click on
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Applications at top left 5. Move over System Tools 6. Click on MATE
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Terminal in window that just appeared 7. Enter: minicom 8. To show
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instructions for controlling the Smoothieboard enter: help 9. When
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finished disconnect the tabletop computer USB cable from the
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Smoothieboard 10. Reconnect the USB cable from the laser cutter computer
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to the Smoothieboard To control the Smoothieboard directly from a
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tabletop computer using screen - Dec. 26, 2019 1. Unplug the laser
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cutter computer USB cable from the back of the Smoothieboard 2. Connect
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another USB cable from the tabletop computer to the connector in the
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back of the Smoothieboard 3. Turn on the computer & log in (see
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Documentation-Tabletop_computer for detailed instructions) 4. Click on
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Applications at top left 5. Move over System Tools 6. Click on MATE
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Terminal in window that just appeared 7. Enter: screen /dev/ttyACM0 8.
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If the display does not state bash: screen: command not found then skip
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steps 9-12 9. Enter: sudo apt install screen 10. If the display shows
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\[sudo\] password for hacdc: then enter standard password 11. If the
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display asks Do you want to continue? \[Y/n\]: then enter: y 12. Enter:
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screen /dev/ttyACM0 13. For instructions type Ctrl a? (hold down Ctrl &
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press a, then release both before typing ? (note that characters entered
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after Ctrl a will not appear on the display)) 14. To show instructions
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for controlling the Smoothieboard enter: help 15. When finished
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disconnect the Smoothieboard from the tabletop computer USB cable 16.
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Reconnect the USB cable from the laser cutter computer to the
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Smoothieboard insLaserK40spec Specifications - K40 power supply - Oct.
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8, 2019 The power supply for the K40 (cheap Chinese laser cutter) is a
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"4-6-4" type with a 6-terminal connector in the center with a 4-terminal
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connector on both sides. L1=G - ground (typically connected to negative
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terminal of laser tube, in this case thru a current meter (laser current
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on front panel)) L2=G L3=AC - one side of 120VAC power L4=AC - other
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side of 120VAC power C1=G C2=P - enable - ground to allow laser to fire
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C3=L - laser - ground to fire laser C4=G C5=IN - intensity - analog
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laser power control (i.e., in manual mode) C6=5V R1=24V R2=G R3=5V
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R4=L - laser - ground to fire laser Note that C3 & R4 are connected on
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the power supply PC board as are C6 & R3. The laser power can be
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controlled using L by PWM. Note: Diode D15 has been disconnected because
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it was leaky; it was only used for an on-board TEST button which is
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never used so there is no particular reason to replace it. |