Messages

631

SmoothStepper USB / Re: smooth stepper works differently in different computers?

« on: April 07, 2010, 06:48:33 AM »

What else is running on your PC? Anything that hogs huge amounts of processor time has the possibility to delay USB communications. Also, since you say this is a custom AMD box, so you have all the right drivers loaded? Windows will try and do the best it can to find drivers that will work but they may not be the correct ones.

If you loose connection when the spindle turns on it is a noise problem. Spindle motors produce lots of electrical noise and if your turning it on with a relay the relay will also produce a lot of arc noise as well.

Also try a different USB cable. A customer of mine had a heck-uv-a time with a new SmoothStepper that could run for most of a day just fine and then loose connection every few minutes. It turned out to be a bad USB cable.

632

General Mach Discussion / Re: Direction of rotation

« on: March 26, 2010, 04:56:24 PM »

This can also be a symptom of one of your stepper wires being loose, generally it will run rough also.

633

General Mach Discussion / Re: machine produces OVALS instead of CIRCLES???

« on: March 25, 2010, 09:30:02 PM »

It could be your configuration process, it could be backlash, it could also be your code. If you post your code it would be easy to rule that one out.

634

General Mach Discussion / Re: Homing Switches have me baffled (again!)

« on: March 19, 2010, 06:34:39 PM »

Oh, you have one of those PMDX 'port expanding' BOBs? Hood, they work by multiplexing the available input lines between two different physical inputs. Not ideal for 'real time' inputs like limits I think...

635

General Mach Discussion / Re: Homing Switches have me baffled (again!)

« on: March 19, 2010, 03:04:04 PM »

What happens if you enable only one switch at a time? Does it still flash?

Try dissconnecting the swtiches, does it still flash?

636

General Mach Discussion / Re: Homing Switches have me baffled (again!)

« on: March 19, 2010, 02:52:34 PM »

When you press a switch it changes from flashing to solid yellow?

637

General Mach Discussion / Re: Windows 7 and Screen4 ?

« on: March 18, 2010, 08:15:36 AM »

Try either running as administrator oe using Windows XP compatibility mode...

638

SmoothStepper USB / Re: Smooth Stepper Port2

« on: March 13, 2010, 02:17:49 PM »

Without an oscilloscope to 'see' the noise you have to guess and plug some filtering values in and then see what happens. The noise filter values are in microseconds so start with a value of 1000 and see how much that helps.

639

General Mach Discussion / Re: Really odd problem

« on: March 12, 2010, 01:23:35 PM »

Your IJ mode is set differently on the two computers

640

SmoothStepper USB / Re: Smooth Stepper Port2

« on: March 10, 2010, 04:34:48 PM »

You have to set the direction of the Port2 pins in the SmoothStepper configuration window. Some BOBs will also not work with Pins 2-9 set as outputs.