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laser_cutter [2018/09/11 13:35]
glassgiant [Pre-Cutting Checklist]
laser_cutter [2018/11/29 19:02]
zwmm
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   - Ensure the vent blast gate is open.   - Ensure the vent blast gate is open.
   - Ensure the vent fan is running. With the lid closed, you should be able to feel air being drawn into the front vents of the laser cutter.   - Ensure the vent fan is running. With the lid closed, you should be able to feel air being drawn into the front vents of the laser cutter.
-  - Ensure the compressor has been recently drained. [How to drain the compressor]+  - Ensure the compressor has been recently drained. [[How to drain the compressor]]
   - Ensure the compressor is on and air is coming out near the lens by feeling it with your hand.   - Ensure the compressor is on and air is coming out near the lens by feeling it with your hand.
   - If there are any problems, stuff doesn't sound right, etc., don't run the job.  Ask someone about it.  As of this writing, Shawn, Marcel, Adam and Jim are among the most experienced with the laser.   - If there are any problems, stuff doesn't sound right, etc., don't run the job.  Ask someone about it.  As of this writing, Shawn, Marcel, Adam and Jim are among the most experienced with the laser.
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 ===== Monitoring ===== ===== Monitoring =====
-We've installed a nodeMCU on the wall which is monitoring (currently only) the temperature in the vent tube. The recent temperature is available on its web server at http://192.168.1.2, within the HMS LAN only.+We've installed a nodeMCU on the wall which is monitoring the temperature in the vent tube and the position of the blast gate. The recent temperature may be available on its web server at http://192.168.1.20, within the HMS LAN only.
  
-You can also subscribe to hmslasermonitor on [[https://telegram.org/|Telegram]] to receive notifications on the state of the cutter. If the temperature becomes suspiciously low or high, a Telegram message is sent to subscribers. A cold temperature may mean someone forgot to close the vent, and the water cooled laser tube is in danger of freezing and breaking. A hot temperature probably doesn't mean anything. Or it's on fire.+You can also subscribe to hmslasermonitor on [[https://telegram.org/|Telegram]] to receive notifications on the state of the cutter. If the temperature becomes suspiciously low or high, a Telegram message is sent to subscribers. A cold temperature may mean someone forgot to close the vent, and the water cooled laser tube is in danger of freezing and breaking. A hot temperature probably doesn't mean anything. Or it's on fire. There seems to be some EMI from the motor of the vent fan, which messes with the temperature sensor.
  
 There are various commands you can send to the bot, including one to get an update of the current vent conditions. There are various commands you can send to the bot, including one to get an update of the current vent conditions.
laser_cutter.txt · Last modified: 2019/12/11 19:15 by glassgiant