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    JuJuDelta

    @JuJuDelta

    Electronic Engineer, 34+ years mucking about

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    Website warwick.ac.uk/fac/sci/wmg/business/innovationexperience/ Location Planet Zog

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    Best posts made by JuJuDelta

    • RE: Fine editor for working with Duet boards

      Intel's Aedit running on MS-DOS was the best!
      8" floppies, MCS-51 Dev system on wheels the size of a fridge.
      And before that punched tape and cards!
      You didn't run programs, you submitted them as a batch file overnight, to then find out you made a typo!
      You "Younglings" are spoilt πŸ™‚

      posted in Third-party software
      JuJuDeltaundefined
      JuJuDelta
    • RE: So what did Santa bring?

      KiCAD V6 !!!

      https://www.kicad.org/

      posted in General Discussion
      JuJuDeltaundefined
      JuJuDelta
    • RE: NOBODY USE RJ11, IT IS 2020 !! PLEASE USE RJ45 LIKE EVERYONE !!!

      @CaLviNx said in NOBODY USE RJ11, IT IS 2020 !! PLEASE USE RJ45 LIKE EVERYONE !!!:

      So much butthurt

      😊
      No don't plug it in there !

      posted in Duet Hardware and wiring
      JuJuDeltaundefined
      JuJuDelta
    • RE: Circuit, PCB analysis tools

      http://www.spectrum-soft.com/index.shtm

      This is now free as the owner has retired and is feeling benevolent.
      It used to cost a few thousand $ and is not trivial.
      Very powerful.

      Enjoy.

      posted in Duet Hardware and wiring
      JuJuDeltaundefined
      JuJuDelta
    • Finished my heated chamber for Christmas

      Merry Christmas to you all.
      Finally finished my heated chamber.
      My Kossel XL+ is in the garage so is subject to cool temperatures overnight.
      So I made a space frame using 16mm diameter aluminium tubing and corner pieces.
      Covered with thermal bubble foil and made a sliding door and lid with polycarbonate cortex.
      The chamber is heated with a 40W bar heater, controlled with a separate thermostat. Once it gets up to 20’C it switches off and the heat from the bed keeps it warm.
      RPi zero W camera to monitor the print job from the comfort of my Lounge.

      4E42D69C-AB81-4128-A285-C30A26034B07.jpeg

      59AA5086-CB01-4D5E-A29A-AC12EE4D0CE6.jpeg

      C886AF30-85C1-4EDE-9BF4-4D8D87D0A9BB.jpeg

      C6C358AC-1AF5-49AA-8B1C-C9441298ED34.jpeg

      A13FD80F-224E-4E5E-AE33-FADC13D36BA4.jpeg

      posted in My Duet controlled machine
      JuJuDeltaundefined
      JuJuDelta
    • RE: BerdAir and noise attenuation

      453F542F-C369-4E84-8237-22AB37B623EF.jpeg

      This helped a little.
      Pump on vibration damping mounts, fuel filter on intake.

      posted in General Discussion
      JuJuDeltaundefined
      JuJuDelta
    • RE: NOBODY USE RJ11, IT IS 2020 !! PLEASE USE RJ45 LIKE EVERYONE !!!

      HAHAHAHAHAHA !

      With respect to Duet3, I personally think it's a good idea to have RJ11 for the CAN and RJ45 for the Ethernet. Stops me putting things in the wrong hole !

      Remember Duet3 CAN wiring is 1:1 on the RJ11.
      Cross over cables often come bundled with modems etc.

      RJ11 lives matter.

      posted in Duet Hardware and wiring
      JuJuDeltaundefined
      JuJuDelta
    • RE: Finished my heated chamber for Christmas

      8A71201D-7A8D-46A6-9A3E-CFE92E9B5D21.jpeg

      posted in My Duet controlled machine
      JuJuDeltaundefined
      JuJuDelta
    • Trouble updating WiFi, classic noise on 8266 problem

      Hi,

      I have updated my Duet2 WiFi to the latest offering, but my WiFi module would not upgrade from DuetWiFi server V1.21 to V1.23

      PanelDue went down through all the connect baud rates and failed at 9600 with some comms failure.

      So after going through all the roll backs, recovery methods etc I thought it might be h/w psu gnd related.

      When I unplugged everything not needed, and the PT100 PCB, managed to program WiFi module OK at a highish baud rate.

      Just a heads up in case you have the same issue and don't want to waste a few hours fannying about.

      The ESP07-12 / 8266 is a bugger for this.

      posted in Firmware installation
      JuJuDeltaundefined
      JuJuDelta
    • RE: Flickering led on Smart Effector probe

      I had a similar problem, it was fluff on the cooling fan causing imbalance and vibration. Only present when thermostatic fan came on with higher nozzle temp.

      posted in Tuning and tweaking
      JuJuDeltaundefined
      JuJuDelta

    Latest posts made by JuJuDelta

    • Paid work: looking for Embedded Control Engineer

      Hi,

      If anyone is interested in doing some part time work for a UK company based near Rugby, please read on....

      This could suit a (semi-) retired EE.

      I work for a local University and have undertaken several projects to assist this SME using grant funding. The project has now come to an end.

      Double sided PCB with a mixture of PTH & SMD components.
      PCB will eventually need re-spinning to move it from prototype to production, and leverage improving supply chain conditions.
      The PCB was designed using KiCAD V6.x and I am populating/debugging 6 off boards.

      Hardware details:

      Processor: RP2040 Dual ARM Cortex-M0+ @ 133MHz (RPi PICO-W module)

      H/W & Comms Protocols:
      I2C, SPI, RS232, RS485 Comms, UART based
      SIM800L 2G GSM Module, simple SMS messaging, UART AT commands
      WiFi 2.4GHz CYW43439

      Knowledge/Appreciation of:
      Solar Panel & Wind turbine technology
      General understanding/appreciation.
      Some RS232/485 comms may be required

      Software can be written in C, Python etc.
      IDE Micopython, Circuitpython, Arduino, Visual studio etec.

      Hardware will be free issued for s/w development, once all modules have been tested/exercised using standard libs.

      If you are interested please DM me directly, and I can supply more details.
      If a suitable candidate applies, I will introduce you to the client company for you to negotiate your own rates/terms etc. I have no financial interest and am not a recruitment agency.

      Regards,

      Julian S.

      posted in Off Topic
      JuJuDeltaundefined
      JuJuDelta
    • RE: Fine editor for working with Duet boards

      Intel's Aedit running on MS-DOS was the best!
      8" floppies, MCS-51 Dev system on wheels the size of a fridge.
      And before that punched tape and cards!
      You didn't run programs, you submitted them as a batch file overnight, to then find out you made a typo!
      You "Younglings" are spoilt πŸ™‚

      posted in Third-party software
      JuJuDeltaundefined
      JuJuDelta
    • RE: Bed leveling has lost its mind

      @frobean said in Bed leveling has lost its mind:

      @engikeneer That did the trick!
      You can even see the spot where I have a tiny piece of plastic debris stuck under the flex plate in the height map 😁

      You should name your printer "Hubble" 😊

      posted in Tuning and tweaking
      JuJuDeltaundefined
      JuJuDelta
    • RE: Circuit, PCB analysis tools

      http://www.spectrum-soft.com/index.shtm

      This is now free as the owner has retired and is feeling benevolent.
      It used to cost a few thousand $ and is not trivial.
      Very powerful.

      Enjoy.

      posted in Duet Hardware and wiring
      JuJuDeltaundefined
      JuJuDelta
    • RE: Kossel XL Plus for Christmas!

      The flex3drive hobbed gear is difficult to clean as it requires a strip down of the housing. Also the housing has split and delaminated.
      Any more problems and it will be replaced with something else.
      Not sure if upgraded/improved parts are available.

      I once left it unused for some months and the OEM toothed belts became deformed at the pulleys - I now park it in differing places!
      Friction prevents z creep.

      Otherwise it’s a great machine.

      posted in My Duet controlled machine
      JuJuDeltaundefined
      JuJuDelta
    • RE: So what did Santa bring?

      KiCAD V6 !!!

      https://www.kicad.org/

      posted in General Discussion
      JuJuDeltaundefined
      JuJuDelta
    • RE: Extruder for DC/Kossel XL recommendations

      Hi,

      Both those extruders look excellent.
      I really like how they open up easily to clean the hobbed gears.
      On my Flex3drive it's a complete strip down.

      I'm a great fan of the Smart Effector built in Z Probe, it works for me.

      When I loose patience (soon) with my current extruder I will look to implement either an Orbiter or Sherpa as a flying extruder.

      Thanks for your recommendations Guys!

      Plenty of ideas here:
      https://www.thingiverse.com/search?q=orbiter+extruder&type=things&sort=relevant

      posted in General Discussion
      JuJuDeltaundefined
      JuJuDelta
    • Extruder for DC/Kossel XL recommendations

      Hi All,

      I have a Kossel XL, SmartEffector etc and the Flex3Drive (early model) is wearing out.

      https://flex3drive.com/product/g5-flex-for-duet-smart-effector/

      Is it worth replacing with a newer one?
      If so, what material SLS, SLA or FDM?

      Or, can you recommend something else?

      Thanks,
      J.

      posted in General Discussion
      JuJuDeltaundefined
      JuJuDelta
    • RE: PT100 issues - my fault

      @achrn Yes I was trying to debug my 2 wire PT100 circuit, hence the doubling up of the wires.

      This was the culprit in the end......p3.jpeg
      Will recrimp at work tomorrow with the proper molex microfit tool.
      Luckily I have a spare PT100

      posted in Duet Hardware and wiring
      JuJuDeltaundefined
      JuJuDelta
    • PT100 issues - my fault

      Hi,

      I'm getting some PT100 temperature fluctuations with effector movement, so I'm suspecting the wiring on my smart effector. I have also stripped the screw terminals undefinedon the RTD board.

      Couldn't locate a BOM in KiCAD files on github.

      Q1: What is the part number for the Molex KK crimps used on the 8 way SIL connector on the Smart effector - I would like to replace the crimps in the cable harness to gold plated.

      P1.jpg

      Q2: What is the part number for the 4 way screw terminal connector used on the RTD board

      P2.jpg

      Many Thanks,

      J.

      posted in Duet Hardware and wiring
      JuJuDeltaundefined
      JuJuDelta