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  • J-Man's Avatar
    05-17-2019, 10:25 AM
    While just about anything is possible, I'd try to keep the motor up top. That being said, not sure you'll get enough swing out of this for a trapeze.
    20 replies | 5788 view(s)
  • J-Man's Avatar
    05-17-2019, 10:16 AM
    How 'bout some type of sea monster? Maybe some tentacles hanging out?
    6 replies | 109 view(s)
  • J-Man's Avatar
    05-16-2019, 06:04 AM
    Nice work as always!
    6 replies | 109 view(s)
  • J-Man's Avatar
    05-16-2019, 06:00 AM
    J-Man replied to a thread Mechanical: Help with cauldron creep head movement in Halloween Props
    Double post again, not sure why this site does that.
    13 replies | 337 view(s)
  • J-Man's Avatar
    05-16-2019, 06:00 AM
    J-Man replied to a thread Mechanical: Help with cauldron creep head movement in Halloween Props
    I have to agree with this. (I have OCD as well!) :rolleyes:
    13 replies | 337 view(s)
  • J-Man's Avatar
    05-15-2019, 05:12 AM
    J-Man replied to a thread Pneumatic: PIR sensor on a picoboo in Halloween Props
    As I mentioned a couple times, if that negative output of the PIR is switched (normally not connected to ground) then it will work as is. If the negative output of the PIR is always ground, then you will need to add an NPN transistor.
    9 replies | 246 view(s)
  • J-Man's Avatar
    05-14-2019, 07:15 AM
    J-Man replied to a thread Mechanical: Wiper Motor Question in Halloween Props
    Ahhh, but that's the big advantage with PWM, you don't lose any torque from the motor. Simply reducing the voltage to slow the motor does result in loss of torque but PWM does not.
    14 replies | 671 view(s)
  • J-Man's Avatar
    05-14-2019, 04:15 AM
    J-Man replied to a thread Pneumatic: PIR sensor on a picoboo in Halloween Props
    Well again, unless the negative output of that PIR is switched, I don't think it will work without adding a transistor.
    9 replies | 246 view(s)
  • J-Man's Avatar
    05-13-2019, 02:31 PM
    J-Man replied to a thread Pneumatic: PIR sensor on a picoboo in Halloween Props
    Got a link to the 12v? Again, if it outputs high, I don't think it will work directly with the Picoboo.
    9 replies | 246 view(s)
  • J-Man's Avatar
    05-12-2019, 05:43 PM
    J-Man replied to a thread Pneumatic: PIR sensor on a picoboo in Halloween Props
    If what you have is a PIR module, it probably outputs 5 volts positive when active. I could be wrong as I don't have one but I don't think the Picoboo trigger works with a positive input. You may have to add an NPN transitor to supply a negative input to the Picoboo.
    9 replies | 246 view(s)
  • J-Man's Avatar
    05-11-2019, 12:28 PM
    Nice work DaveintheGrave!
    7 replies | 386 view(s)
  • J-Man's Avatar
    05-10-2019, 07:20 AM
    J-Man replied to a thread Mechanical: Help with cauldron creep head movement in Halloween Props
    Awesome! Looks great!
    13 replies | 337 view(s)
  • J-Man's Avatar
    05-10-2019, 05:34 AM
    J-Man replied to a thread Mechanical: Help with cauldron creep head movement in Halloween Props
    Here's a diagram showing the difference in pivot point location. The first example has the pivot point above the arm being moved, similar to bluesjumper's configuration. The second example has the pivot point in line with the arm being moved. The blue lines represent the distance the linkage has to move to get 90 degrees. Using the same linkage attachment point in both examples you can see that it takes nearly twice the amount of linkage movement to get 90 degrees with the arm below the pivot...
    13 replies | 337 view(s)
  • J-Man's Avatar
    05-09-2019, 02:01 PM
    J-Man replied to a thread Mechanical: Help with cauldron creep head movement in Halloween Props
    The other thing that's killing the movement is the tee configuration. The pivot point is way above the pvc that you're moving, so the whole assembly is acting like a swing instead of a seesaw. You'd get much better movement if you use a 4-way fitting between the shoulders and get the linkage connection point much closer to that pivot point. Your motor arm is only giving you a set amount of movement in 180 so the closer the linkage attaches to the pivot point, the more movement you'll get. You...
    13 replies | 337 view(s)
  • J-Man's Avatar
    05-09-2019, 08:06 AM
    J-Man replied to a thread Mechanical: Help with cauldron creep head movement in Halloween Props
    Really hard to say from here but I would do away with the double linkage and try a single bar from the motor arm to the pvc. You really need to start by positioning the head upright where you would like it to be at the highest point and then configure the linkage from there.
    13 replies | 337 view(s)
  • J-Man's Avatar
    05-08-2019, 06:40 PM
    J-Man replied to a thread Mechanical: Wiper Motor Question in Halloween Props
    Easy, a power inverter. Just make sure you get one that has more than the required wattage your device needs. Here's one. https://m.harborfreight.com/750-watt-continuous-1500-watt-peak-power-inverter-66817.html
    14 replies | 671 view(s)
  • J-Man's Avatar
    05-08-2019, 11:19 AM
    J-Man replied to a thread Other: Flying Crank Ghost in Halloween Props
    Hey you're welcome!
    5 replies | 186 view(s)
  • J-Man's Avatar
    05-08-2019, 10:22 AM
    J-Man replied to a thread Other: Flying Crank Ghost in Halloween Props
    What's powering your Creep, 120vac? You just need an AC to DC power supply. Anything from 3V to 12V will work, such as an extra phone charger. Those "battery" LED's you've shown are nothing special, they're just standard LED's with resistors to accommodate the 9 volts, so don't waste you're money. Look for 12v led's on ebay if you don't wanna mess with adding resistors. They have resistors already added to handle 12V. They will also work with 9V -5V though they might be a tiny bit dimmer,...
    5 replies | 186 view(s)
  • J-Man's Avatar
    05-07-2019, 07:14 PM
    J-Man replied to a thread Other: Flying Crank Ghost in Halloween Props
    Not really sure what you're asking. Any LED can be powered with any DC voltage using the appropriate resistor.
    5 replies | 186 view(s)
  • J-Man's Avatar
    05-07-2019, 12:58 PM
    JCO has a great idea using 3. As for Paul's version, I think a totally black background would be easy to hide the mechanism without any additional props.
    14 replies | 380 view(s)
  • J-Man's Avatar
    05-07-2019, 05:43 AM
    Not sure if you've seen either of these but they may be of some help. https://www.halloweenforum.com/halloween-props/201941-floating-candle-prop.html https://www.halloweenforum.com/tutorials-and-step-by-step/202273-two-motor-floating-lantern-prop.html
    14 replies | 380 view(s)
  • J-Man's Avatar
    05-06-2019, 07:17 PM
    J-Man replied to a thread Mechanical: Has anybody tried the Squawkers McCaw? in Halloween Props
    Keep checking ebay, occasionally there are Squawkers feet listed.
    17 replies | 565 view(s)
  • J-Man's Avatar
    05-06-2019, 03:29 PM
    J-Man replied to a thread Mechanical: Has anybody tried the Squawkers McCaw? in Halloween Props
    The POTC looks good but you can get better beak reaction by fine tuning the GAIN pot just a HAIR CW, and I do mean a hair. Just a touch of that pot makes a difference! Take a look at my Pirate Squawker using some of the same clips and you'll see what I mean.
    17 replies | 565 view(s)
  • J-Man's Avatar
    05-06-2019, 03:20 PM
    J-Man replied to a thread Mechanical: Wiper Motor Question in Halloween Props
    Just an FYI, you really don't need the terminal adapter and you can get the PWM speed control on ebay for $5 or less.
    14 replies | 671 view(s)
  • J-Man's Avatar
    05-06-2019, 05:29 AM
    J-Man replied to a thread Mechanical: Wiper Motor Question in Halloween Props
    You need an AC to DC power supply, 12VDC - and at least 5A.
    14 replies | 671 view(s)
  • J-Man's Avatar
    05-03-2019, 06:07 PM
    You're probably right. Kinda looking forward to just walking around on Saturday.
    17 replies | 846 view(s)
  • J-Man's Avatar
    05-03-2019, 05:45 PM
    I won't have a booth but I'm planning on being there Saturday June 8th.
    17 replies | 846 view(s)
  • J-Man's Avatar
    05-02-2019, 05:28 PM
    Honestly, I don't know how any CVS or Walgreens stays in business, their product prices are sky high. Must be the pharmacy that pulls in the $$$. As for the Halloween items, can't speak for all locations but there are several stores in my area and last year the Halloween section was almost non-existent. A very obvious change in marketing.
    13 replies | 728 view(s)
  • J-Man's Avatar
    05-01-2019, 04:05 PM
    Here's a quick look at the servo mech in action. Just an FYI if anyone is thinking about doing this with a servo, the one I used has monster torque, about 750 oz. running on 8 volts.
    59 replies | 2246 view(s)
  • J-Man's Avatar
    05-01-2019, 04:05 PM
    Here's a quick look at the servo mech in action. Just an FYI if anyone is thinking about doing this with a servo, the one I used has monster torque, about 750 oz. running on 8 volts. https://www.youtube.com/watch?v=hVzlafZ7mKs&app=desktop&persist_app=1
    59 replies | 2246 view(s)
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    Hey Jman! This may sound like an ignorant question, but the light fader you have- can it be hooked up to those led strip lights? If so, how? Im interested in those....
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