Software Support > Automated Projects

MRotate5 (Bug fixed. Download V 1.0.1)

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DaOld Man:
Ok, back to my USB version.
I have decided to go with the USB IO kit offered by electronics-diy.com

http://www.electronics-diy.com/USB_IO_Board.php

This board is pretty easy to put together. It only has a few parts and comes with everything you need except the usb cord. If you dont have a cord that fits the socket they send, you can cut one end off an old usb cord and solder it in place of the socket they send with the kit.

This board has 16 pins that can be configured as inputs or outputs.
MRotateUSB (final name is pending) will allow you to configure the pins from the setup mode.
MrotateUSB will allow you to configure it based on your drive needs, just like previous versions did with the printer port.

Here is a quick and dirty diagram of how you could hook up an H drive with an enable (such as the secret motor drive).


EDIT: I felt the need to clarify something. I mentioned that the board comes with everything you need. Dont let this be misleading. This board comes with all parts needed to construct the USB IO device.
You will still need additional components such as motor, motor drive, power supply for motor, limit switches, pull up and pull down resistors to complete your project.
You will also need solder and a good soldering iron for the IO board. it is a kit that you have to put together.

wolfsoft:
Hi DaOldMan,
great to see rotating Monitor Setups will come more common :-)

In my pinball project I am using a ready assembled Dual-H-Bridge to drive the motor
It is using the L298N Dual H Bridge it can drive 4,8-46V and 2A load
I think it will be easy to connect it to your PIC USB Board and it can driven via PWM too...

http://www.wolfsoft.de/shop/product_info.php/products_id/14869/

DaOld Man:
Looks like it could interface quite easily with the usbio board.
Thanks Wolfsoft.

wolfsoft:
Hi DaOld Man,

if you need one free sample of the DUAL Brigde. No Problem!
Please send me your adress via private mail.

Thanks
Klaus

Zebethyal:
L298 Stepper driver is also available from Ebay for $15.88 (free international shipping):

http://cgi.ebay.co.uk/L298N-Stepper-Motor-Driver-Controller-Board-Module-DC-/270725603284?pt=LH_DefaultDomain_0&hash=item3f0880dfd4#ht_2987wt_948

Potentially cheaper auctions starting at $0.01 and £4.99 shipping.

Cheap enough if you only require 1, personally I am still looking for cheaper stepper drivers, either building my own partly or completely, depending on what parts are used.

I am currently designing several CNC machines, and although prepared to pay decent money (£200) for 6 x 4.2A drivers for my 8'x4' 4/5 axis wood machine that will probably cost me £1500 including all  motors and electronics. However I object to paying £35+ for a 4 axis board for a desktop machine or foam wire cutter with less than £200 in parts including motors.

I am also looking to build a MAME cabinet with a rotating monitor - hence my interest in this thread.

I originally designed a cocktail cabinet and then decided to go with something more like Kneivel's "Woody" but with a rotating monitor and maybe even rotating controls (still undecided on that part).

I am looking at a slightly different method of rotating the monitor, that I do not believe anyone else has tried yet - using a car electric/power window mechanism and a lazy susan bearing, the window winder mechanism providing 90 degrees of rotation by pushing on a corner of the monitor at about a 45 degree angle, still need to mock it all up to see what other parts may be required.

The mechanism I am using has geared rotation that is turned into straight line movement by levers/arms, (scissor action) I will probably not use all of these "arms" but will need the attachment point on the monitor board to be able to pivot.

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