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    Posts made by hackinistrator

    • RE: To SSR or not to SSR

      for low voltage high current dc powered bed you can also use external high power mosfet with a heatsink . usually will be cheaper then ssr .

      posted in Duet Hardware and wiring
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    • RE: Unable to login to duet shop, password reset does not work.

      @T3P3Tony thanks allot.
      i'll contact local distributor tomorrow to check if they don't have the never ver. for sure .if not i'll contact you.

      posted in Order discussion
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    • RE: Unable to login to duet shop, password reset does not work.

      @T3P3Tony
      i wanted to buy from the duet site as i see the never ver. of the 6hc board is in stock there. Local retailer has only older versions .

      posted in Order discussion
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    • RE: Unable to login to duet shop, password reset does not work.

      i know its an old topic but i'm also trying to log in to duet shop with same issue as op .
      do i need to create different account ?
      (forgot password button does nothing)

      posted in Order discussion
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    • RE: devicenet servos , any chance to control them?

      @T3P3Tony
      i can read data sent on the network via external software (while it is connected to industrial dnet controller) from yaskawa that is used to configure the driver and connects to a laptop via usb. it also allows to monitor real time torque , rpm etc .

      my current roadblock is the handshake . i can set the baud rate (max is 500k and not 1mb like duet) and address on the driver , but i need a network scanner , or "master" to make the handshake .

      posted in CNC
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    • devicenet servos , any chance to control them?

      hello guys.
      i have a complete set of servo motor ,encoder and driver from yaskawa - servopack sigma 3 series . more details here:
      https://www.yaskawa.com/products/motion/sigma-5-servo-products

      is there any chance to "map" the servo drive on duet(3) ? i know duet is can fd and its a bit different to dnet .
      i want to use the motor as a spindle , and need only simple control , like set rpm and spin . i can read the data that is sent to the unit to make it spin , but so far i'm unsuccessful with somehow connecting the unit to a dnet "master" .i tried searching if anybody done this with arduino without success .

      any other suggestions for devicenet control (on the cheap) are welcome .

      posted in CNC
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    • RE: Unable to tune chamber heater

      did you try with R value in m307 at 0.001?
      also , maybe your heater never reaches the target temp .

      posted in General Discussion
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    • RE: SIMPLIFY 3D V 5 IS NOW OUT

      i liked the slicer , it used to be the best one around .
      the company is awful though .
      they didn't touch v4 for years , not even bug fixes .
      they delete posts on their forum and now they want 50$ for an upgrade .
      I'll pass.

      posted in Third-party software
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    • RE: Where to buy quality SSR?

      with such high current on mains i think its also important to buy ssr with zero cross trigger type.

      posted in General Discussion
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    • RE: Mushrooming print - What could cause this?

      Definitely could be. I double checked with an IR thermometer and got ~5°c off the printer's reading (which is good for an unknown emissivity, I'd say...). Can't find my multimeter's thermocouple at the moment but I will double check it.
      However I think there is a possibility that the readings are accurate and the cause for the different behavior might be:

      • High temperature inside the chamber (4 of the 6 walls are double aluminum panels with an air gap between them for better insulation, and the remaining doors are thick glass panels)
      • Reflective aluminum walls bouncing the IR radiation from the oversized bed back to part to be absorbed.

      i suggest you measure the bed temp with a thermocouple + multimeter . some of the parts look completely melted (way higher then 100c) . my chamber temp is higher then 50c , its around 60 .at work i have stratasys printer thats prints abs with 90c chamber and nothing like that is happening .
      your bed is huge , maybe the heat is uneven . also its worth checking the nozzle temp with external measurement

      posted in 3D Printing General Chat
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    • RE: Mushrooming print - What could cause this?

      that's strange .
      i have both esun ABS+ and polymaker ASA.
      i use much higher bed temp , around 120-130c and never had this effect .
      maybe your bed temp readings are way off .

      posted in 3D Printing General Chat
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    • RE: Heating Chamber for a 3d printer!

      @rexx it has nothing to do with mains freq . its the pwm switching freq .
      heated beds and chamber heaters that are powered by mains usually use low switching freq , around 10hz .
      also it will able you to see what's actually going on (led lights on when out on) .
      i don't know what type of ssr you are using , some of them can't work at high freq , and some can . default freq is 250hz if you don't use the q parameter .

      posted in Using Duet Controllers
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    • RE: Heating Chamber for a 3d printer!

      add Q parameter to m950 to lower the pwm freq .

      posted in Using Duet Controllers
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    • RE: What conditions cause "Phase A may be disconnected" error

      if you ran the printer for a year , probable cause might be breakage inside the extruder motor wires due to repetitive flex of the wires .
      i think its best to change the cables , they're cheap.

      posted in Duet Hardware and wiring
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    • RE: NEMA 23 Drama

      its very unlikely that its a power supply issue .
      did those motors ever work ?
      i ran nema23 with 24v supply without any issues

      posted in General Discussion
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    • RE: 48 volt steppers board selection

      duet3 can be modified to run at higher voltages , if you're willing to go that route.

      posted in Using Duet Controllers
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    • RE: What may cause these print artifacts?

      i think its software config issue .
      something happens during deceleration .
      when you disabled input shaping in start gcode with :

      M593 P"none" F46.0
      

      i don't know what's going to happen here .
      try to change it to

      M593 P"none"
      
      posted in General Discussion
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    • RE: Nema 23 Backlash on direction change

      that's allot of "something" you're moving there .
      did you consider leadscrews ?
      at what voltage are you running the motors?

      so let me get this straight , just to move your axis you need 2NM , which is close to the rated max holding torque of the motor .
      while changing direction the torque needed might be 10 times more , depends on your max speed , accel and jerk setting.

      posted in RepRapFirmware on other controllers
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    • RE: Very stubborn print quality issue

      i'm 90% sure its your bed heat cycle .
      try to print without heating the bed .

      posted in Tuning and tweaking
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    • RE: Prusa new kitchen sink XL printer

      i guess prusa learned from their mistake with the dual drive gear . Its causing more issues then its supposed to solve .
      I agree that 2 idler wheels will probably cause issues with flexible filaments , maybe there is something i don't see , don't know .

      posted in General Discussion
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