Big laser cutter: Difference between revisions
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* Kerensa Juniper | * Kerensa Juniper | ||
* Dave Lear | * Dave Lear | ||
Revision as of 15:22, 24 October 2018
| Fab Lab | ||
|---|---|---|
| 3D Printing | 2D Cutting | Misc |
| Hive13 Equipment |
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| List of All Documented Equipment |
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| Owner/Loaner: Hive13 |
| Hive13 Asset Tag: None |
| Make/Model: G.Weike LC1512 (google) |
| Arrival Date: 07/2015 |
| Does it work?: Yes |
| Certification Needed?: yes |
| Contact: Fab Lab area warden |
| Floorplan: 1A |
| Manual: [[LC1512[1]|Manual]] |
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Pages to do with the Laser Cutter: |
Notice
9/12/18 The Big Laser is Working again after a major overhaul including tube & optics replacement. There is a significant increase in cutting power and the lens now has a 127mm focal length which increases the length of the narrow cutting sweet spot. Old files and settings need to be reset for the higher output. Your old speeds and power settings are probably wrong.
Users
The Big Laser is only available to Hive13 members who have been certified on its use & care. To become certified, you need to take the certification class. Contact us about scheduling one.
Note: The list of certified people was WAY out of date. Please notify a trainer to certify, re-certify, etc
Certified Members
- Will Bauer
- Tiffany Bell-Horwath
- Mason Boling
- Chris Davis
- Danielle Fraley
- Nancy Graf
- Kerensa Juniper
- Dave Lear
- Brett Pipitone
- Cat Hodges
- Who will be next?
Trainers
- Lorin Parker
- Dave Velzy
- Ryan Hershey
- Greg Arnold
To Do
Counter balancing the lid
The pneumatic cylinders on our laser were bad when we received the laser which cause some near accidents when the lid wasn't supported and came crashing down.
Helper struts have been added and now the lid will stay up.
Still crashes down the last few inches. Hold onto the handle and let it down easy. Careful. It's heavy.
Perhaps we can add a closing damper. The handle could use an upgrade. If only we could machine stuff . . . .
Exhaust Fan Update.
With the FabLab move, the Exhaust fan duct improved to properly vent both lasers at the same time. Until further notice use the red/black power cord to plug and unplug the fan.
Work Log
New auto z zeroing sensor (September 2018)
Replacement sensor is a LJ8A3-2-Z/BX NPN NO 3-wire 2mm Inductive Proximity Sensor Switch DC 6-36V housed in a custom aluminum contactor. The sensor is commonly available.
The picture on the right shows how the new sensor is mounted. The sensor may be adjusted up and down to zero the focal point a the top surface or mid-plane of the material to be cut.
During the installation of the sensor it was learned that a pull-up resistor of 330K ohm is added in line between the 24v line and the output line.
| Laser Wiring Information Table | |||
|---|---|---|---|
| Laser Side | Red | Purple | Blue |
| Sensor Side | Brown | Black | Blue |
| Location | Left | Center | Right |
| Function | 24v | Output | Ground |
| pull-up Resistor | 330K Ohm | n/a | |
New auto Z Settings February 2017 - THis needs update to the 127mm laser focus.
16.5 is the setting we want to use for Org-OffsetLength in the Easycut 5.3 software. The distance from the top of the material to the point the sensor triggers is 1.114". The OriginOffSetLen setting within the syscfg_biglaser.ini file needs to be set to 16.5