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equipment:edwards-e306a:log [2026/04/04 22:18] – q3kequipment:edwards-e306a:log [2026/05/02 19:08] (current) – [Journal for E306A Coating System] rahix
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 See [[equipment:edwards-e306a:|main page]] for details about the system itself. See [[equipment:edwards-e306a:|main page]] for details about the system itself.
  
-==== Day 2026-03-30 ==== +==== Day 2026-04-25 (rahix) ==== 
-Brought the system into out lab.+Electrical inspection (V3) of the machine. Rewired a few plugs. Everything passed! 
 +==== Day 2026-04-12 (q3k) ====
  
-Bypassed front panel lock (no keys), replaced key lock core with flathead-driven lock core.+Fit new vent valve holder. Still a bit loose but better. Should probably hold the pipeline instead of the valve...
  
-==== Day 2026-04-02 (q3k, Rob, Hugo) ====+Reprinted knob to fit shaft better. Partially retapped shaft to M6 - previous thread didn't seem metric.
  
-First inspection of device.+Fixed leak at pirani gauge after swapping it for some tests earlier. Took normal KF centering ring.
  
-Cooling circuit leaking at inlet block, inlet coupler (through chassis), outlet tee, outlet coupler (through chassis).+Attempted to run diffusion pump. A bunch of stuff offgassed and the pump sizzled but there was no extra vacuum. Need to inspect and probably fill, no other choice now...
  
-Rebuilt inlet block, replaced push fitting in it. Doesn't leak anymore.+==== Day 2026-04-04 (q3k, Hugo, Rob) ====
  
-Bypassed inlet coupler and outlet coupler (connecting water cooling circuit directly to block and output tee). Still leaks at tee, ordered replacement. +Ordered activated alumina from Roth.
-  +
-Found dangling 230V cable (black) in lower chassis. Discovered it's a feedback cable (230V, NO, relay input) to the electric shutter from a missing film thickness monitor. Took apart electric shutter controller to discover this, pulled N wire from its terminal block by accident, reinstalled. Should be fine, but would really benefit from a re-crimp with ferrules.+
  
-Briefly attempted to pull a rough vacuum. Pirani gauge started going down.+Valve actuates, but leaks. Ended up replacing it with a modern vent valve with an ISO KF flange. The threaded flanges from Edwards are compatible enough to get us to a decent rough vacuum. New valve needs wiring done well (currently there is no strain relief) and a new mount (currently everything dangles off the vent line, which risks breaking it).
  
-Installed 3d printed toilet paper roll oil mist filter. Might prevent the front panel from closing.+Water inlet block got PTFE tape replaced with o-rings. Water outlet tee got swapped for one borrowed from the membrane pump. 
 + 
 +Roughing pump oil is really smelly, even with the oil mist filter. We really should replace it. 
 + 
 +Replaced oil with ISO VG 68 from 2022. Did a small purge cycle just to get the manky old oil out. Now reaching an ultimate pressure of around 8e-2 mbar. Put old oil into plastic canister, ended up accidentally causing an emulsion with water using detergent - we should clean that up (salt it out with brine?) before handing it off to the Wertstoffhof. 
 + 
 +3D printed a holder for the new vent valve, but needs some small rework to hold the valve better.
  
 ==== Day 2026-04-03 (q3k, Rob, Hugo) ==== ==== Day 2026-04-03 (q3k, Rob, Hugo) ====
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 Substrate/target positioning system seems to be somewhat broken, or is weird to operate. Gears leading from knob/handwheel to positioning system miss some locating pin causing the gears to not mesh unless the handwheel is pushed in - can cause gears to strip, this should be fixed! Substrate/target positioning system seems to be somewhat broken, or is weird to operate. Gears leading from knob/handwheel to positioning system miss some locating pin causing the gears to not mesh unless the handwheel is pushed in - can cause gears to strip, this should be fixed!
  
-==== Day 2026-04-04 (q3k, Hugo, Rob) ====+==== Day 2026-04-02 (q3k, Rob, Hugo) ====
  
-Ordered activated alumina from Roth.+First inspection of device.
  
-Valve actuates, but leaks. Ended up replacing it with a modern vent valve with an ISO KF flange. The threaded flanges from Edwards are compatible enough to get us to a decent rough vacuum. New valve needs wiring done well (currently there is no strain relief) and a new mount (currently everything dangles off the vent line, which risks breaking it).+Cooling circuit leaking at inlet block, inlet coupler (through chassis), outlet tee, outlet coupler (through chassis).
  
-Water inlet block got PTFE tape replaced with o-rings. Water outlet tee got swapped for one borrowed from the membrane pump.+Rebuilt inlet block, replaced push fitting in it. Doesn't leak anymore.
  
-Roughing pump oil is really smelly, even with the oil mist filter. We really should replace it.+Bypassed inlet coupler and outlet coupler (connecting water cooling circuit directly to block and output tee). Still leaks at tee, ordered replacement. 
 +  
 +Found dangling 230V cable (black) in lower chassis. Discovered it's a feedback cable (230V, NO, relay input) to the electric shutter from a missing film thickness monitor. Took apart electric shutter controller to discover this, pulled N wire from its terminal block by accident, reinstalled. Should be fine, but would really benefit from a re-crimp with ferrules. 
 + 
 +Briefly attempted to pull a rough vacuum. Pirani gauge started going down. 
 + 
 +Installed 3d printed toilet paper roll oil mist filter. Might prevent the front panel from closing. 
 + 
 +==== Day 2026-03-30 ==== 
 +Brought the system into out lab. 
 + 
 +Bypassed front panel lock (no keys), replaced key lock core with flathead-driven lock core.