584,802 active members*
4,902 visitors online*
Register for free
Login
IndustryArena Forum > CNC Plasma, EDM / Waterjet Machines > PlasmaCam > RF noise from PLASMACAM opens and closes my garage door
Results 1 to 4 of 4
  1. #1
    Join Date
    Feb 2018
    Posts
    8

    RF noise from PLASMACAM opens and closes my garage door

    When I turn on the PLASMACAM now and then my garage door will open or close, is there anybody elsewho had this problem, and if so is there any RF filters out there that work?Thanks,John

  2. #2
    Join Date
    Mar 2018
    Posts
    4

    Re: RF noise from PLASMACAM opens and closes my garage door

    Must be an older door receiver/transmitter. The new doors are in excess of 10 million code combinations and very secure. My older garage door would open every time a plane flew over or a nearby CB radio would transmit.

  3. #3
    Join Date
    Oct 2008
    Posts
    2100

    Re: RF noise from PLASMACAM opens and closes my garage door

    Quote Originally Posted by seeandzee View Post
    Must be an older door receiver/transmitter. The new doors are in excess of 10 million code combinations and very secure.
    I was just thinking the same thing. However there is the problem of, "must cause no harmful interference," I have often seen on potentially noisy devices over the years.
    Bob La Londe
    http://www.YumaBassMan.com

  4. #4
    Join Date
    Mar 2016
    Posts
    59

    Re: RF noise from PLASMACAM opens and closes my garage door

    Is your table attached to a ground rod? Not Power company ground, but a dedicated ground rod?
    My suggestion is as follows:
    Ensure that your table is attached to a functioning ground rod - one with a resistance of 3 ohms or less*
    Ensure that the ground rod is less than 20 feet from the table.
    connect the ground rod to the table with a cable equal to or larger than the than the gauge of the work lead .

    * ground rod testing.
    100 watt incandescent light bulb - a real 100 watt light bulb, not an energy saver or lower wattage bulb.
    light bulb pigtail socket
    power cord with a 120 VAC male plug.
    DMM with VAC capability


    Connect the hot side of 120 VAC to the light bulb pigtail.
    Attach the other lead of the pigtail to the ground rod.
    Apply 120 VAC power to the to the power cord. The light bulb should light up
    Measure the AC voltage between the ground rod and the 120 VAC neutral on the power cord. The Voltage reading is equal to the resistance of the ground rod.

    Note: 100 watt incandescent light bulbs can still be purchased from Walmart - 100 watt Toughlight light bulb.
    The math here only works with a real 100 watt incandescent bulb.


    ALTERNATIVE:
    disconnect power to the garage door opener.

Similar Threads

  1. NH4000 atc door closes very hard
    By dwatsonftech in forum Mori Seiki Mills
    Replies: 6
    Last Post: 02-06-2019, 09:44 PM
  2. (FANUC 0i) Wanna stop high pressure when the door opens
    By jaeohck in forum CNC Swiss Screw Machines
    Replies: 1
    Last Post: 10-19-2017, 08:32 PM
  3. ACME screw from and old garage door?
    By marcelg in forum DIY CNC Router Table Machines
    Replies: 2
    Last Post: 03-22-2010, 06:53 PM
  4. Squeezing a VM-1 under a garage door?
    By rustyolddo in forum HURCO
    Replies: 9
    Last Post: 10-19-2008, 03:41 AM
  5. Garage door height and VF2
    By l u k e in forum Haas Mills
    Replies: 12
    Last Post: 03-27-2008, 03:10 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •