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  1. Minder

    Servo Motor Controler help.

    The joystick would need to be the pot kind rather than the on/off sw type. Beware of starter motors, some are series motors and not suitable, if P.M., then maybe OK. Another source with gearbox is a bumper winch type. M..
  2. Minder

    Motor speed help

    A simple PWM controller designed around a 555 is a simple approach, there are many designs out there and $5.00 ones on ebay. M.
  3. Minder

    Servo Motor Controler help.

    I don't see a servo necessary for that application, it most likely would be position controlled visually, I would guess. Auto wreckers are a source of 12vdc motors, for controllers there are $5.00-$10.00 PWM types, the only thing to add would be a reversing relay. M.
  4. Minder

    Control Circuit for a ( Linear motion ) Motor

    Forgot: on the subject of power you could just use a simple step down transformer and a bridge rectifier, the ebay type controllers usually have any capacitors built in. This is if the chair is used in just one permanent location. M.
  5. Minder

    Control Circuit for a ( Linear motion ) Motor

    One based on this circuit http://www.discovercircuits.com/DJ-Circuits/simplepwm2.htm Or they are about $5.00 on ebay DC PWM controller. You would need to add a reversing relay, however. M.
  6. Minder

    How to create a magnetizer

    That is also the basis for a stud welder, the discharge is usually done with a high power SCR. A contactor is a industrial strength relay and used for that purpose would require a very specialized DC version with arc chutes and arc blow out of some kind. M..
  7. Minder

    Pfaff sewing machine capacitor

    I seem to recall as similar post recently on an identical problem, unless it was another site. It is a Universal motor, and as such kicks out a lot of (electrical) noise, you can make up a filter/snubber with individual caps, ensure you use AC rated caps as used in PSC AC motors. M.
  8. Minder

    LCD 1602 or HD44780 mistake connect pin 1 to 5V

    Part 1 Page 5! M.
  9. Minder

    IC problem

    Double posting!! https://www.electronicspoint.com/threads/lcd-1602-or-hd44780-mistake-connect-pin-1-to-5v.282964/ M.
  10. Minder

    help identifying the soft start for angle grinder circuit main component number

    Without more info on the IC it is moot anyway. M.
  11. Minder

    help identifying the soft start for angle grinder circuit main component number

    Not IMO, there are many applications where a Pic is used for Triac control with a 120hz ripple input directly to the Pic for zero cross detection, in fact I am working on such an application right now, based on both Picmicro app notes and other designs out there on the web. Also that shows 5v...
  12. Minder

    LCD 1602 or HD44780 mistake connect pin 1 to 5V

    Google search for the 2 part LCD PDF's by Julyan ILett. They show how to do a static test of the HD module. M.
  13. Minder

    Zener Diode

    That would be my take also, just a 5v clamp for safety. M.
  14. Minder

    help identifying the soft start for angle grinder circuit main component number

    That has all the appearances of a 12Fxxx Microchip, The μp is not going to do you much good without the source code. The symbol is wrong for a Triac, it shows a SCR. M.
  15. Minder

    Zener Diode

    In parallel with what? Diagram? M.
  16. Minder

    Absolute Noob, help identifying component.

    The silk screen shows it as R32 which indicates a resistor, obviously a cooked one so very difficult to ID the value. M.
  17. Minder

    Permanent Magnet DC (PMDC) Motor Controller

    For one-off's I use Stripboard Prototyping Boards Halfway down the page. Use a 1/8th drill to open a trace, the holes can be opened up to accommodate terminal strip etc. Use a Box cutter knife to run down between each strip to check for shorted strips that may occur. There is also strip board...
  18. Minder

    Trying To Determine Potentiometer Needed For Grizzly G8691 Lathe

    They are not critical, 5k to 10k should work and are fairly common, linear as opposed to logarithmic type used for audio etc. Roughly means that the linear type, the centre slider type increases in resistance in a linear fashion from one end to the other, e.g. a 10k pot would be 5k at centre...
  19. Minder

    Shaded Pole Fan Motor - Speed Control Question

    If you have any friends that are RC aficionado's, you could check to see if they have a prop balancer, if so, this could be used for a balancing attempt of the fan. M.
  20. Minder

    Will this still work with a more powerful motor?

    Of course it is relevant to your question! You supposedly are worried about using larger motors, I pointed out that you can use the same or smaller motors if gearing is used up to the required speed. M.
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