#Field_Service ## TODO ```dataviewjs dv.taskList(dv.current().file.tasks.where(t => !t.completed),false) ``` ## Index - [[JEOL NeoScope Filament Fabrication]] - [[NeoScope JCM-5000 Architecture]] - [[NeoScope JCM-5000 O Rings]] - [[Leybold TurboVac TMP50]] - [[Neoscope OBI Installation]] - [[Neoscope replacement power supplies]] ## Service ### [[2024-07-14]] - [ ] Future: replace column screws ### [[2024-07-11]] - Disassembled vacuum system up to the turbo pump - Found "dust bunnies" sticking to surfaces with grease - Reversed direction of chassis fans and remounted - Designed a filter mount for the fans ### [[2024-07-10]] - Issue: Blurry images even at low magnification - ![[Pasted image 20240710105812.jpg|med]] - After blowing out the inside of the chamber (a bunch of white powder came out) - ![[Pasted image 20240710105734.jpg|med]] - ![[Pasted image 20240710105748.jpg|med]] - Removed the door to get a better look in the chamber - ![[Pasted image 20240710110529.jpg|lg]] - ![[Pasted image 20240710110549.jpg|lg]] - Backscatter scintillator appears to have been damaged, also shows signs of delaminating with age - ![[Pasted image 20240710110826.jpg|lg]] - Compared to photos from 2023, the delamination has progressed some but the scratch is not new - ![[Pasted image 20240710113030.jpg]] - ![[CleanShot 2024-07-10 at [email protected]]] - Scintillator is attached to light pipe by a difficult to access screw - ![[Pasted image 20240710111213.jpg|lg]] - need to be careful not to scratch the good scintillator - Pulled out the objective aperture holder and inspected under a microscope - Observed significant dust contamination and a hair - ![[Pasted image 20240710113432.jpg|lg]] - ![[Pasted image 20240710113504.jpg|lg]] - To do: - [x] Polish anode - [ ] Polish anode aperture - [ ] Polish OL aperture holder - [ ] Polish OL aperture ### [[2024-04-12]] - Characterizing new power supplies - +24V supply for HV - ![[ScreenImg-71.jpg]] - Multimeter: 24.091 VDC, no ripple - +24V supply for everything but HV - ![[ScreenImg-70.jpg]] - Multimeter: 24.108 VDC - +5V supply - Unfiltered - ![[ScreenImg-64.jpg]] - Filtered - ![[ScreenImg-67.jpg]] - Multimeter: 5.0971 VDC - +15V supply - ![[ScreenImg-68.jpg]] - Multimeter: 15.103 VDC - -15V supply - ![[ScreenImg-69.jpg]] - Multimeter: -15.100 VDC - Ideas/to-do for GUI - Custom file save location - Custom file header + incrementing numbers - Combine save image and single capture into Photo - Combine x and y into Resolution - What is dwell time? - Dwell time settings for live vs photo - call it scan speed - L, M, H - feedback for entering magnification - flip screen horizontally - Magnification: 130 HFOV: .9 mm ### [[2024-04-08]] - Trying to install SEM software on windows 10 - Installed firewire card - Getting drivers from here: - https://support.microsoft.com/en-us/topic/firewire-port-based-device-does-not-work-correctly-in-windows-8-1-or-windows-8-2242eed9-e8e2-00eb-c854-9335ea06c5fe - Ran 1394_OHCI_LegacyDriver.mis - It ran for a sec then disappeared - Now under program files (x86) there is a new folder 1394 OHCI Compliant Host Controller - Under C:\Program Files\1394 OHCI Compliant Host Controller (Legacy)\x64_driver, right clicked Legacy1394.inf and sellected "install" - No dialog box or anything but i think it worked - Went to device manager, right clicked on the firewire card and selected update driver - selected browse my computer for drivers - Selected let me pick from a list of available drives - Selected 1394 OHCI Compliant Host Controller (Legacy) - Selected next - Windows reports having successfully installed the driver - Disabling driver signature enforcement - Searched "start up" - Selected advanced startup options - Selected restart - Selected troubleshoot - Selected advanced options - Selected startup settings - Selected restart - Selected options 7 disable driver signature enforcement - Installing JEOL Neoscope Software - Ran setup.exe - selected install - Got some windows installer dialog talking about install options - Copied installation files to top level of CD and ran setup.exe - This time got to first page of setup wizard before a dialog popped ip saying this product only sipports 32 bit operating systems - Installed 32 bit windows - Repeated all of the steps above - Installing JEOL software - clicked setup .exe after copying software to the top level of the USB drive - Clicked install - selected language - Setup wizard (this is where we were stoped last time) - Clicked though to install - "Install this driver software anyways" - After clicking finish launched JEOL software and turned SEM on - Everything connected right away and we got an image after pump down! ### [[2024-04-04]] - Want to measure current draw on the +5VA line to make sure that total current with our board installed won't exceed 1A (the limit of the noise filter) - ![[Pasted image 20240404104112.jpg]] - Startup: .2674 A - Changed scan settings, scan rotation, etc. to see if it would increase current draw - ![[Pasted image 20240404104557.jpg]] - Going to pull the turbo controller off to inspect which part is causing noise - ![[Pasted image 20240404110103.jpg]] - It is not the transformer on the left - Blue disc capacitor that is closest to the connector - Other hot spot is between L3 and L4 (right two transformers) - Poked the blue capacitors and the sound change - - ![[Pasted image 20240404114017.jpg]] - saw frequency peaks at 3678 and 3800 - Ripple check on power supplies - +5VDC - PBA10F-5-N - 5V, 2A - Before noise filter - ![[Pasted image 20240404120553.jpg]] - Multimeter: 5.0801 VDC, 0.0000 VAC ripple - ![[ScreenImg-38 1.jpg]] - can see 106KHz switching frequency - After noise filter - SNA-01-223 - ![[Pasted image 20240404120612.jpg]] - ![[ScreenImg-39 1.jpg]] - -15VDC - Daitron ?? Model - Multimeter: -14.725 VDC, no AC ripple - ![[ScreenImg-40 1.jpg]] - +15VDC - Daitron ?? Model - Multimeter: +15.114 VDC, no AC ripple - ![[ScreenImg-41 1.jpg]] - Stage +12VDC - Cosel Model LDA10F-12 - Multimeter: 12.122, no AC ripple - ![[ScreenImg-42 1.jpg]] - Upper +24VDC - 24V, 4.5A - Cosel PAA100F-24-N - Multimeter: 24.041, no AC ripple - ![[ScreenImg-43 1.jpg]] - Lower +24VDC - 24V, 2.2A - Cosel PAA50F-24-N - Multimeter: +24.189 VDC, no AC ripple - ![[ScreenImg-45 1.jpg]] ### [[2024-04-03]] - Pumpdown curve from last night: - ![[Pasted image 20240403123410.jpg]] - [[Neoscope OBI Installation]] - Need to find power to tap - AC power supplies go to distribution board "15V PS" - Lens CN4 is labels +-15V Analog - Connectors coming from the 15V SMPS: - DSC CN35 - gray and black - DSC CN32 - brown and black - Black wires on both connectors are grounded - Gray: -14.7 VDC - Brown: 15.11 VDC - TMP startup notes: - State: Spinup - Yellow LED turns on when spinning up - ![[Pasted image 20240403193944.jpg]] - Then it went into this state: - ![[Pasted image 20240403194019.jpg]] - The sound seems to be coming from the controller, not the pump? - Localized sound to the bottom left side of the controller - The good news is that it's not coming from the pump! - Looking for a source of 5V power - There is a 12V 1A SMPS that seems to just power the stage LED - Lens board does not have a 5V input. It has a 24V input and 5V regulators - There is another 5V, 2A SMPS. This provides power to the digital board (the one with the firewire connector) - There are two twisted pairs that comes off of the 5V, 2A power supply. One is filtered, one isn't, both go to the digital board - Left: IFIS CN16: unfiltered - Right: IFIS CN21: filtered - Testing nearby +5VA and GND testpoints - There is a low resistance connection between the 5V testpoint and the 5V wire in CN21, and between the ground testpoint and the ground wire in CN21 - Filament broke. ==Changed filament== - Noticed that the Wehnelt was loose - that's why we noticed the filament was hard to find sometime, because it was moving around ### [[2024-04-02]] - Unpacked new PC - Amazon did not send us not what we ordered but we're going to roll with it - Set password to "password", all security questions to "FHL" - Cables are still in mostly the same positions - No oil on the floor by the pump - good - The same filament we made is still running - it's lasting longer than usual! - Noticed the first time we pumped it down that the turbo got stuck at a certain frequency - Cleaned some fibers off the door o-ring - [ ] Record pumpdown curve - Pumped down: at 3 min 30s, turbo is still making sounds - At 5 min, P1 is at 2.545V and rising slowly - Base pressure is 1.3172 - Suspecting the threaded KF flange adapter that comes out of the roughing pump - screwed this in tighter. - Pump makes a "quack" sound on startup - With mist filter removed, pump makes a gargling noise - this means air bubbles are flowing through the pump - Tried blanking the tubes, then blanking the pump inlet directly - gurgling sound was still there - Swapped the pump out for the sputter coater pump - found creatures with many legs in the inlet filter for that pump - Pumped down - After 1 minute - 2.00 VDC - After 2 minutes - 2.41 VDC - After 2 1/2 minutes - 2.45 VDC - After 3 minutes - 2.48 VVDC - After 3 1/2 minutes - 2.50 VDC - After 4 minutes - 2.52 VDC - After 4 1/2 minutes - 2.53 VDC - After 5 minutes - 2.549 VDC - After 6 minutes - 2.567 VDC - After 8 minutes - 2.59 VDC - After 11 minutes - 2.618 VDC - Hit 2.64 after 16 minutes - After 20 minutes - 2.652 VDC - Probed HVREF: 2.6328 - Switched to low vac mode - Pressure was rising, voltage is less than 1.8V - Switching back to high - Went back to 2.5 VDC very quickly, then to 2.6, and eventually passed the high vac setpoint - Pressure reached 2.66 VDC, 32 minutes from the first pumpdown - Probing signals on CN15 - As you change focus, the x and y scan ramp signals intermix. At about halfway through the working distance range, the signals are pure x and y. - With scan rotation neutralized at the mid position - Pin 1 (X) - ![[ScreenImg-33 1.jpg]] - Pin 3 (Y) - ![[ScreenImg-34 1.jpg]] - Image shift does not affect x and y scan signals - What is the maximum size ramp we can get it to do? - For the given WD and KV, 33° manual scan rotation gives the maximum deflection, which is about 5vp-p - ![[ScreenImg-35.jpg]] - SED signal is about 2Vp-p - ![[ScreenImg-36 1.jpg]] - Swapped the original pump back in - ![[Pasted image 20240402183700.jpg]] - Got to full evac status quickly with a normal looking pump down curve - But we can still hear the turbo pulsing and imaging is not working - Vented and pumped down again - After one minute: 2.25 VDC - Two minutes: 2.61 VDC - Two minutes and 45 seconds: 2.64 VDC - Had to find the beam again, gun align is all the way to one side #### Things we regret not bringing - KF o rings - tiny o ring for the column - cone tip knipex - wago connectors ### [[2023-06-12]] - Report from customer that on [[2023-06-08]] that the scope started to fail on all of the HV check self tests - this was the first time the scope was ran in 4-5 days - Scope was presenting with a dark screen - Looking at the screen there was just the flickers (sounds like dark noise on the PMT) - The scope still has the filament that we made in it - Today Adam powered it up, was black with the occasional speckle, then went straight to maintenance and ran a self test. - Failed on RP/TMP check and HV check ### [[2023-01-22]] #### Setting vacuum gauge for a sub 3 minute pump down: - Vented system - Pumped down system - After 1 minute pumping - 1.60 VDC - After 2 minutes pumping - 2.62 VDC - After 2 1/2 minutes pumping - 2.638 VDC - After 3 minutes pumping - 2.648 VDC - The VENT led when from quick blinking to solid at 2.6563 VDC - The HVREF pot reads 2.6477 - As I understand, the board is comparing the HVREF voltage to the gauge voltage, but it seems there is some amount of offset between what the HVREF is and the point it actually switches over - That offset is: 2.6563 - 2.6477 = .0086 - My new target voltage is going to be 2.640 for switch over - NOTE: This is the high voltage interlock being adjusted. You have been warned. - If my target is 2.640 and my offset is .0086, then my indicated HVREF should be 2.640 - 0.0086 = 2.6314 - Was able to set HVREF to 2.6313 #### PC Rebuild - [ ] Get pictures of all bios settings - Installed new SSD - Installed windows 7 with previous user/PW - Installing ILP4 disk (think it might be the software for the fire wire card, but its all Japanese so I don't really know - No Japanese font installed, this might come up again - Not really sure what went on here - Will look in device manager to see what is up - ![[Pasted image 20230122192351.png|lg]] - One of the buttons installed acrobat version 5, uninstalling it - ![[CleanShot 2023-01-22 at [email protected]|lg]] - Copying JSM-5000 DATA CD to PC Hard Drive - Installing JEOL JCM 5000 V 1.2.3 software - Ran setup.exe - Clicked adobe reader to install adobe 9.3, used default options - Ran setup.exe again - Clicked Install - Installed with default options - Had to approve unregistered drivers. If trying to install on a more modern windows would have to disable driver signature enforcement - First run of software - The software link light lit up, and software started HV. - Did not get an image on screen, got this error - ![[Pasted image 20230122193806.png|lg]] - If anything I am thinking this is related to the firewire drivers. There are some oddities wrt fire wire drivers on windows 7 iirc - firewire drivers prt 2 - uninstalled ohci complient fire wire device - Uninstalling JEOL software to reinstall now that the default ieee driver is not installed - Looking in the software change log the IEEE driver version is displayed in the JEOL software - Installing JEOL software prt 2 - Clicking setup.exe on the disk brings up this error - ![[CleanShot 2023-01-22 at [email protected]|lg]] - right clicking the disk then clicking autorun worked - Finished installing JEOL software again, it asked about drivers again as well - Right clicking SEMAdmin then clicking scan for hardware changes brought the IEEE back bus host controller and JEOL 1394 controller back - I remember dealing with firewire problems with gatan hardware a lot, something about legacy drivers rings a bell - https://support.presonus.com/hc/en-us/articles/210043763-Switching-to-the-Legacy-FireWire-driver-in-Windows-7 - Changing the driver to one of the VIA ones got a new error on the IEEE self test: - 11-0012 - IEEE Asynchronous of iso - Trying the legacy driver now - Launching the software got a different image in the view port - Before it was purple view port with a black box on one side - This time the black box was filled with a gradient - Running the self test all IEEE tests pass - After running the self test I was able to get an image! - Shutting everything down and bringing it back up to test it - Everything came right up #### Making the monitor easier to see - Hit the -lightbulb- button (also has a minus sign on it) - Use the + and - to navigate to brightness - Hit the blank button to the left of minus to sellect brightness - use the + to set brightness at maximum - Hit the blank button to the left of - again to deselect brightness - Use the +- to navigate to contrast - Hit the blank button again - Increase contrast to max - Was really surprised how much brighther the monitor got with contrast ### [[2023-01-22]] #### Changed RP oil - Ran pump on SEM for several hours to warm up pump and oil - Drained oil, oil came out very dark - Filled pump with new oil (bottle of Pelco ([[Ted Pella]] brand) Ultra 19 found in lab), ran for 1 hour with gas ballast open, not attached to microscope. - Ran some oil through the vacuum inlet of pump to flush vanes - Let air into pump a few ties - Drained oil again, got more sludge out - Filled with ULVAC R-2 specified for pump - This has the most Japanese way to open the oil can ever - Re-attached pump to SEM #### Front stage control POT - Customer noted that on occasion students would get blurry images because the stage rotation would be on without them realizing it - This seemed to be due to the dead band of the stage rotation POT being smaller than the range the detent on the pot stop the pot in - I used [[DeoxIT D5]] to try to improve the performance of the detent, it feels a bit better but the pot that JEOL used here is quite small, so I am not surprised that it does not have very good detent force. - I used the trim pot bellow the control pot to adjust the center to the right ever so slightly. I could eliminate the issue when the POT was sitting on the right side of its range, but I could not mitigate it for the left and right side at the same time completely. I tried to balance it as best I could - Possible better solutions for the future: - Increase the dead-band of the POT - This might be able to be done via changing component values in the circuit - Would need to get pics of both sides of the board, then reverse engineer schematics to see if this is possible - Add a LED to indicate to students when the stage is in motion - Could probe around the board to see if there is a good place to add an LED so that it lights up when the stage is in motion of when it is still. - Found on pin on the connector that goes to the stage that might work well for this - It goes to +12 when the motor is inactive, and almost to 0 when it is just off to one side or the other. - As you increase the stage rotation speed this goes back up towards 12 VDC, but by the time it gets very high in voltage the stage is moving very quickly and would be easy to notice the rotation in software ### [[2023-01-20]] - The high voltage cable ground braid was frayed around the electron gun, and the wire wrap that goes around it to restrain it was loosely coiled around it - I reformed the ground braid to cover the inner HV cable - I rewrapped the wire over the braid and tied it off - I re-clamped the re-wrapped and reformed ground braid under the HV cap retainer clamp ![[IMG_3524.png|lg]] #### Pumpdown datalogging 6:35:00 pumpdown start 6:38:45 -2.6550 V 6:47:51 start second pumpdown with the stage in 7:01:30 -2.6556 V ```math start = 6 hours + 47 minutes + 51 seconds stop = 7 hours + 1 minute + 30 seconds stop - start ``` ### [[2023-01-18]] To do before reassembly of next section: - [x] Clean O rings [completion:: 2023-01-20] - [x] CL2 housing to lower O rings [completion:: 2023-01-20] - [x] Two liner tube O rings [completion:: 2023-01-20] - [x] Clean apertures [completion:: 2023-01-20] - [x] Lower CL aperture [completion:: 2023-01-20] #### Reassembly photos Inserting lower column liner: ![[IMG_2074.png|lg]] Inserting stigmator + deflection coil bundle: ![[IMG_2062.png|lg]] Inserting the upper pole piece: ![[IMG_1999.png|lg]] Placing lower condenser aperture: ![[IMG_2020.png|lg]] Installing the lower condenser aperture: ![[IMG_2035.png|lg]] Installing the lower condenser section: ![[IMG_2045.png|lg]] Installing upper condenser aperture in anode: ![[IMG_3102.png|lg]] Installing anode: It's easier to do upside down so the upper aperture is kept in place ![[IMG_2127.png|lg]] Installing upper condenser section: ![[IMG_2134.png|lg]] Installing emission chamber + vacuum tube: You have to pull back the connector to the turbo pump a bit to get it to slide in. ![[IMG_2173.png|lg]] ### [[2022-01-17]] Parts cleaning procedure: - Polished with Unipol and foam swabs - Sonicated in 50% Mr. Clean / 50% DI Water - Rinse with DI water - Blow dry Cleaned apertures with same method, but more gently under the Zeiss microscope. ![[IMG_1993.png|med]] Reinstalled: Objective lens Lower scan / stig / autofocus coil assembly Lower column liner (careful not to scrape the O-ring while pushing the liner tube through) ### [[2023-01-16]] Vacuumed the surrounding area - a lot of accumulated dust Opened up the PC and vacuumed inside - [x] Utilities we kinda need: [completion:: 2023-01-17] - [x] Gloves [completion:: 2023-01-17] - [x] Compressed air [completion:: 2023-01-17] #### Column disassembly ![[527DCFA1-5C10-4884-9E82-F206246C12DD_1_105_c.jpeg|grid]]![[7795B4DD-5EB4-4147-98F3-D0A41663DCA5_1_105_c.jpeg|grid]]![[8F50C057-CA2D-4E1C-90B4-E8F3CF1DFDE5_1_105_c.jpeg|grid]]![[E62D6652-AE9C-4093-B12D-9DB1B3BC0BE5_1_105_c.jpeg|grid]] ![[10D3161D-5FBD-4CF8-8C4E-580B58982E99_1_105_c.jpeg|grid]]![[10170D9E-939C-4CED-A7E0-10C0B8720E55_1_105_c.jpeg|grid]]![[9B8D1A4D-6C6E-430C-9A52-84A6096623AF_1_105_c.jpeg|grid]]![[1FCF4CC4-3AD8-485F-A5C2-191252930715_1_105_c.jpeg|grid]] ![[AC39B337-7D8B-4D43-9E1C-20A0540E8F57_1_105_c.jpeg|grid]]![[81C9C3D1-6EC7-4A35-A678-4632D0CC53BC_1_105_c.jpeg|grid]]![[4EF36D16-5745-4581-9755-CA39FDEA9258_1_105_c.jpeg|grid]]![[63B184DF-5AE2-49CF-A62F-BF9EEECFF49D_1_105_c.jpeg|grid]] ![[C58CA500-D6CE-4E09-A5F1-473582CC40D2_1_105_c.jpeg|grid]]![[661FC116-237E-4DD9-AEA1-DCB51E406D87_1_105_c.jpeg|grid]]![[747D1ABC-2117-442D-ABB5-32D78EAA9765_1_105_c.jpeg|grid]]![[D8B69FF5-31AC-44E5-B2DE-ABF63CE6BF33_1_105_c.jpeg|grid]] #### Pre-column disassembly - Starting with opening up the swing out electronics and power supplies - Lots of dust, cleaning out with a vacuum and very lightly damn microfiber cloth - Some of the short cables on the control boards side need to be removed, we are making sure they are all well labelled and labeling the few that are not. - ![[Pasted image 20230116181531.png]] #### Baselining Took resolution test photos at all probe current settings and all kVs. - 5kv - Seems to be some drift. Changing scan speeds caused the image to jump. - Lowering the probe current seemed to reduce drift. Resolution increased. - 10 kV - 15 kV #### Vacuum System Setpoints - The first complaint from customer was that the system would take a long time to get past the end of the pump down sequence. This could be due to: - The pressure not actual reaching base pressure - The gauge not reading the pressure correctly - The set-point for the gauge not being set correctly - Figuring out the gauge circuit - There are 5vacuum specific test points - TP1 - PIOUTV - Right next to the 2 wires that go to the penning guage - TP2 - GND - TP3 - PIOUTR - Next to [[LM358M]] dual opamp - TP4 - HVREF - TP5 - LVREF - At high vacuum (all measurements WRT TP2 GND): - TP1 PIOUTV - 2.679 VDC - TP3 PIOUTR - 18.293 VDC - TP4 HVREF - 2.646 - TP5 LVREF - 1.699 - Monitoring TP1 PIOUTV during vent - Voltage dropped to 1.3384 - I noticed a lot of things on the door oring, several very suspect fibers. - [x] to do: clean door o-ring [completion:: 2023-01-17] - [x] Recomendation: routinely clean door oring, have students visually inspect door oring before use, and have lens tissue and alcohol on hand for this. [completion:: 2023-01-17] - ![[Pasted image 20230116124322.png]] - HV ready enabled when voltage was at 2.6555 #### Baselining system - [x] Get resolution test images on tin balls at 5, 10, and 15 kv after best effort alignment [completion:: 2023-01-17] - [x] Look for signs of beam instability at 5 kv [completion:: 2023-01-17] - [x] recommendation: don't put the PC on the floor [completion:: 2023-01-23] #### Chat with Adam about service history Last time a service engineer was here - for the HV supply He didn't clean the column - swapped in a new column Noticed damaged to the backscatter detector Have no choice about using the backscatter detector - auto mixed to maximize contrast If you drop the filament current, you can watch the secondary electrons come up and the backscatter electrons come down Both of the detectors light pipes connect to the same photomultiplier tube Using 12-18 filaments per year, lasting 100-150 hrs each Cleaning the anode every year Never changed gun O-ring Changed door O-ring once - a student closed it with a plant in there - there may be a spare on hand Prev student changed an o-ring that holds the gun in at the bottom - above the backscatter detector - these are tiny little o-rings that hold the liner tube in - [x] to do: change any O-rings near the beam [completion:: 2023-01-20] The stage is kind of loose, the center detente on the pot isn't tight enough, so the motor moves the specimen around a bit and it feels like beam drift - [x] to do: fix stage potentiometer [completion:: 2023-01-23] Auto focus, auto brightness and contrast work Auto stig works above 5000 Using a custom sample holder PC was getting a little slow - could do a hard drive swap with a clean install? - [x] to do: hard drive swap [completion:: 2023-01-23] ### [[2023-01-15]] Long pump down time, went long enough to trip long pump down timer. Adjusted VR for potentiometer back and forth very slightly. ![[1E862D43-62D4-4B28-8C2A-AC4DEB46B05B.jpeg|grid]] RP oil level is good, oil color is pretty dark - [x] To do: change RP oil [completion:: 2023-01-23] - [x] To do: inspect turbo pump [completion:: 2023-01-20] #### inspecting inside the case A lot of dust is present inside the case around the leak valve ![[8060870D-E34D-43E9-BB8E-2BF3580FA808.jpeg|med]] - [x] To do: clean internal dust [completion:: 2023-01-17] - The software lets you change the background to fun patterns like flowers - Objective center is noticeably off axis, not sure if possible to align more (maybe with shift coils?) - [x] To do: download manuals and software files off the PC [completion:: 2023-01-23] Removing: - Greater than 1 full turn out on right and front adjustment screws - 1/2-1 turn on other screws Replacing: - Turned left and back screws in one turn - Tightened up front and right - [x] To do: clean emission chamber [completion:: 2023-01-18] ![[CB727B2D-95A4-411C-A819-68043F6FBD64.jpeg|med]] - [x] To do: repair HV cable [completion:: 2023-01-21] ![[8306FDEA-B627-46E6-A5D9-09129A70F1B6.jpeg|med]] random error that popped up: ![[A5C6D6D2-6D78-44A1-A0E7-6ADEAB2D0500.jpeg|med]]