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sherline_training_sop [2022/10/03 20:39] – [Rates] furstsherline_training_sop [2022/10/05 22:18] (current) – furst
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 Last edited: Furst (08/26/20) Last edited: Furst (08/26/20)
  
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 ====Overview:==== ====Overview:====
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       * Cleaning       * Cleaning
   * Remember to enter job information into the 3D print job log!   * Remember to enter job information into the 3D print job log!
 +{{:tools:sherlinecncmill:img_2876.jpg?400|}}
  
 ====Safety==== ====Safety====
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 ====Applications==== ====Applications====
-The Sherline CNC is used exclusively for for drilling holes in glass, ceramic, silicon, or other brittle materials. Milling of brittle materials is not supported. The Sherline uses a high speed spindle in combination with abrasive diamond drill bits to slowly abrade the material away. +The Sherline CNC is used exclusively for for drilling holes in glass, ceramic, silicon, and other brittle materials. Milling of brittle materials is not supported. The Sherline uses a high speed spindle in combination with abrasive diamond drill bits to slowly abrade the material away. 
  
 Typical applications include adding macro to micro interface connecters to Microfluidics chips. Typical applications include adding macro to micro interface connecters to Microfluidics chips.
  
 ====Software==== ====Software====
-The Sherline CNC uses a retrofitted Sherline mini mill in combination with the FlashCut CNC software. This SOP does not cover dxf2fgc conversion code. +The Sherline CNC uses a retrofit Sherline mini mill in combination with the FlashCut CNC software. This SOP does not cover dxf2fgc conversion code. 
  
 FlashCut CNC offers a user interface for positioning, zeroing, and running the G-code, however it has no CAM capabilities. This means that G-code must be hand written based on the location of holes.  FlashCut CNC offers a user interface for positioning, zeroing, and running the G-code, however it has no CAM capabilities. This means that G-code must be hand written based on the location of holes. 
  
 ====Sample Prep==== ====Sample Prep====
-A backing plate is required for drilling, and should be bonded to the substrate to be drilled to improve backside cut quality. If bonding is not permitted, slowing down cut speed may result in less blowout on the backside of the hole.+A backing plate is required for drilling, and should be bonded to the substrate to be drilled to improve backside cut quality and prevent drilling into the fixture. If bonding is not permitted, slowing down cut speed may result in less blowout on the backside of the hole and a backing plate should still be used.
   - set CrystalBond hotplate to 121 degrees C   - set CrystalBond hotplate to 121 degrees C
   - place a sheet of tinfoil or wax paper over hotplate to avoid spilling of crystal bond   - place a sheet of tinfoil or wax paper over hotplate to avoid spilling of crystal bond
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 ====CNC Setup==== ====CNC Setup====
-  - Turn on the Flashcut CNC box+{{:tools:sherlinecncmill:img_2879.jpg?400|}} 
 +  - Turn on the Flashcut CNC box 
   - On the Sherline computer, start FlashCut CNC (thunderbolt icon)   - On the Sherline computer, start FlashCut CNC (thunderbolt icon)
   - Within FlashCut, select the home tab, followed by seek home. This will move all axis to their zero position.    - Within FlashCut, select the home tab, followed by seek home. This will move all axis to their zero position. 
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   - clamp the bonded sample into the top left corner of the fixture    - clamp the bonded sample into the top left corner of the fixture 
-  - Without changing the coordinates, swap the edge finder for the selected abbrasive drill bit+  - Without changing the coordinates, swap the edge finder for the selected abrasive drill bit that you intend to drill with
   - Using the jog commands, position the spindle over a sacrificial portion of the sample   - Using the jog commands, position the spindle over a sacrificial portion of the sample
   - slowly ramp the spindle speed up to full speed and apply diluted Kool Mist coolant over the sample and within the fixture.   - slowly ramp the spindle speed up to full speed and apply diluted Kool Mist coolant over the sample and within the fixture.
-  - using incremental jog, slowly lower the drill until a the coolant over the sample turns cloudy due to glass dust +  - using incremental jog on slow speed, slowly bring down the bit until it enters the fluid and just touches the surface of the wafer. a small plume of glass dust will be seen when the rotating bit contacts the wafer or glass surface.  
-  - zero the program Z axi.+  - zero the program Z axis.
   - raise the spindle using the jog function and turn off the spindle.     - raise the spindle using the jog function and turn off the spindle.  
  
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   * No additional charges result from tool time   * No additional charges result from tool time
   * Used drill bits are free    * Used drill bits are free 
-  * If a new dill bit is selected, ensure it is logged within FBS so recharge can be applied+  * If a new dill bit is selected, ensure it is logged within FBS so recharge can be applied {{:tools:sherlinecncmill:img_2873.jpg?400|}} 
 ----- -----
-=====F270 Quick Review===== 
-Tool Lead: Andrew Furst \\ 
-Contact: Andrewfurst@ucsb.edu 
-====Safety Concerns==== 
-  * Both print heads and bed are heated during operation. Do not attempt to clean, remove, or adjust without allowing for adequate cool down time.  
-  * Keep hands clear of printer during operation. Pause print before clearing or adjusting part. 
  
- ====Safe Operating Procedures Review==== 
-    - On the F270 printers computer, launch GrabCad Print 
-  - Select File -> New Project -> Add Models -> Import desired models 
-  - Move models around on virtual build tray so that models on a used build tray do not overlap any previously printed spots 
-  - the purge block and printed model should be placed close together to minimize print time 
-  - Select "Print Settings" from the menu on the right hand side 
-  - From menu, select desired slice height, and verify that the first layer material is set to support.  
-  - Open and place build tray into F270, making sure that the tray is locked in place by pulling up on the front locking arm until arm is PARALLEL to build tray.  
-  - Select print, and send the job to the F270 3D printer 
-  - on the F270 touch screen, select your job, and then select print. 
- 
-====Post Processing==== 
-  * If support was constructed from dissoluble filament clean using the F270 Support Removal Apparatus which is filled with heated caustic chemicals. GLOVES, LAB COAT, AND FACE SHIELD MUST BE WORN 
-  * Build tray should be scraped clean and free of any support or build material then placed in the USED F270 tray drawer if printable space is left. Any material protruding from the build tray will damage print heads during the next print. 
- 
-====Maintenance Schedule (see user maintenance page 80):==== 
-  * Clean oven chamber weekly 
-  * Clean platen weekly 
-  * Inspect, wipe, and clean tip wipe assemblies monthly 
-  * Clean exterior of printer as needed 
-  * Clean touchscreen as needed 
- 
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sherline_training_sop.1664829593.txt.gz · Last modified: 2022/10/03 20:39 by furst