What tasks have been completed?
- Designed and made the board for the interface and relays control
- Wrote the firmware for the main board (interface and relays control)
- Designed, milled and assembled the main structure
- Lasercutted and assembled the electronic's case
- Assembled lamps and ballasts and made the wiring
- Lasercutted and soldered the 7 segs displays board
- Tested uv sensor
- Made a working beta version of the sacrem box
What tasks remain?
- Assemble the frame
- Attach to it the neoprene
- Seal the frame
- Assemble the frame to the main structure
- Test the pressure sensor
- Lasercut and solder the uv/pressure sensor board
- Upgrade the firmware with vacuum control routine based on the pressure sensor
- Upgrade the firmware with light integrator routine based on Uv sensor data
What has worked
- It burns well the stencils in about 3 minutes
- The timer works well
- The interface is easy to use
- You can store the value on the eeprom
What hasn't
- The start button sometimes fail for a debounce issue
- One cable attached to the relays module inside the electronic's box sometime secedes
What questions still need to be resolved?
- The pressure/uv sensor board need a special case? (it will be placed where the vacuum will be created, between the neoprene and the glass)
- Where I should attach the neoprene to the frame (at the top, on the internal side, or on the external)?
What have you learned
I learned a lot, i was a novice inside a fablab before and now i manage pretty well a lot of processess. In the specific of this project I learned a bit about lights and the exposure process in general, I learned how to wire fluorescent tubes and ballasts, how to build a big structure, how to use the machine in order to decorate the structure, how to use timer interrupts etc.
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