Messages

21

General Mach Discussion / Re: Does any one have the datasheet for a HP HEDS-7500 Optical Encoder??

« on: August 06, 2008, 10:11:14 AM »

I know they are running 5V TTL compatible logic.  From there I should be able to reverse engineer the rest.  I bought one extra to blow up :-).  What does Mach require form an encoder?  Just a square wave?

22

General Mach Discussion / Re: Does any one have the datasheet for a HP HEDS-7500 Optical Encoder??

« on: August 06, 2008, 10:00:27 AM »

HAHAHAHA, that is who I bought them from.  He does not have the data sheet.

23

General Mach Discussion / Re: Does any one have the datasheet for a HP HEDS-7500 Optical Encoder??

« on: August 06, 2008, 12:24:58 AM »

I think that is the next step

24

General Mach Discussion / Re: Does any one have the datasheet for a HP HEDS-7500 Optical Encoder??

« on: August 05, 2008, 08:02:20 PM »

No luck.  I managed to stump google on this one.  Any other ideas?

25

General Mach Discussion / Does any one have the datasheet for a HP HEDS-7500 Optical Encoder??

« on: August 05, 2008, 05:25:21 PM »

Does any one have the datasheet for a HP HEDS-7500 Optical Encoder??

26

General Mach Discussion / Re: What is a "G&L Beijer MAC/ MTA E300 Operator Interface Panel"???

« on: August 05, 2008, 04:50:42 PM »

Thats what I was thinking.  That is why I put it on e-bay.

27

General Mach Discussion / Re: What is a "G&L Beijer MAC/ MTA E300 Operator Interface Panel"???

« on: August 05, 2008, 02:34:14 PM »

This is all I have.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=110276720592

28

General Mach Discussion / What is a "G&L Beijer MAC/ MTA E300 Operator Interface Panel"???

« on: August 05, 2008, 12:05:31 PM »

Does any one know what a "G&L Beijer MAC/ MTA E300 Operator Interface Panel" is, or if I could adapt it to run with Mach?

29

General Mach Discussion / Re: Any one know how to build a cheap linear encoder?

« on: March 11, 2008, 04:20:51 AM »

Well, I think I am going to go with that, regardless of belt or friction, the device is the same.  What does mach 3 want for inputs from an encoder?

30

General Mach Discussion / Re: Any one know how to build a cheap linear encoder?

« on: March 11, 2008, 03:44:59 AM »

My CNC is stepper based. But that does not matter, I have play in the lead screws.  I can not attach the encoders to the lead screws as they will not pickup the play. So how about using encoders with a pulley on the far side of my CNC and a big cable loops that is mounted to the  cutting table? So when the table moves the mounted section goes with it, causing the loop to shift.  I just pick up the rotation count at one end.  I can use the brains out of a wheel mouse and a little bit of circuitry. What you think?