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Messages - RICH

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6281
Who is the wired controller made by?
I think Lee will want to know.

RICH

6282
Well Jack,
You asked a simple question and off we go to help you or give you more than a simple answer.
I don't like to comment on someones remarks, but, Jeff's reply is very important, also
and i would like to expand on his reply in a different way.

Let's do some design for a machine at a very high level. The motor is sized such that it will move the machines axis with enough power and at some desirable speed along with enough torque. This is true for each of the machines axis's and could be different. The power supply will need to provide the voltage and current to all of the motor drives. Motors can be wired differently to change their operation and thus their voltage and current
requirements will change. Now for each sentence above there are books upon books written.

So lets  really confuse the issue of the controller box which usualy contains the power supply, drives, maybe some other boards. You can design something so that it only works within a small range of operation or you can expand the range of operation and allow for some unknown future wants or needs. Also you can be conservative in the design of the components. Cost is also something to consider and could be a deciding factor.

From a cost point of view consider the following:
- Dedicated contoller to one machine to just to get it cnc'd and fool around with to gain experience $=?
- A contoller to use for multiple machines some requiring a better power supply $=?

I would recommend the following for your consideration:
1. Make the box  large enough so you can add additional drives allowing room for easy routing of the wires, access, room for other boards etc.
2. Consider a power supply / supplies , or maybe one now and addition of another such that it would take care of future needs.  I have have 30 amp power supply at 36 volts, so it can take care of 4 dives easy and that allows me to address about anything at a hobby level i should need.

I just don't want you to spend money and be sorry later on. So think about it.  

RICH



 

6283
Jack,
You will probably get a lot of different opinions on what to do. So I may as well add my 2 cents worth.
You already have a Xylotex board and if i had to start from scratch that would not have been my choice
and would have went with Gecko's. For steppers why not use or buy the equivillant of 269 in-oz ones which Xylotex sells with their kit? Also take a look at their associated power supply. Download their instructions also.

I have my PC and controller on a cart since i need to move them around for use on different machines.
You didn't say what drive you bought but if it's for four axis's then the power supply should have amperage
equal to the total amperage of all the drives along with 24 to ?? voltage ( ?? check to see what you drives are
rated for ).

You should consider using MAch3.
RICH



  

6284
General Mach Discussion / Re: Newbie need help with Lathe
« on: May 02, 2009, 12:13:11 AM »
Torn,
Your getting I & K instead of I & J  ( mill x & y ) because "k" is associated with the z axis of the lathe in the code. For those goffy, we call them crop circles,  go to config>ports & pins>turn options  and check or uncheck
"Reversed Arc's in Front Post".

RICH
 
I looked at you file in Turn and i had to change in config>general logic> check IJ MODE to INC and Distance Mode to Absolute.
Additionaly when you load the file there are some G97 codes which do not have a S500 value ( or whatever - so i just added it ) for the spindle speed. One last thing are a few moves which i point to in the attached pic of the profile. I don't know if that is what you actualy
wanted to do but the moves look a little out of place.
I am not familar or use bobcad so can't be of any help there. There others in here who do use it though and may remark.
Hope this helps,
RICH

6285
Well at least you can run a machine.  I know how aggravating it can be when something dosn't work.
When your in the right mood just trace out the wires inside the controller and see if you find anything apparent. A wire may not be making contact or it could be the drive. Having some info on the controller or drives would certainly help. 

Have some fun,
RICH

6286
General Mach Discussion / Re: Problems threading on the lathe
« on: May 01, 2009, 10:06:26 PM »
ART,
Installed the version from reply #277, did all - checked all - still is not working properly on my end. 
Have a nice vacation.
RICH

6287
General Mach Discussion / Re: Mach Ballbar test?
« on: May 01, 2009, 06:05:15 PM »
Hi All,
Never heard of that tester before and the link was interesting.
Sometimes just happy that the circle cut won't accept a square peg !  ;)
RICH

 

6288
General Mach Discussion / Re: Problems threading on the lathe
« on: May 01, 2009, 05:00:25 PM »
ART,
Here are some pics at various sample rates.
Kernal speed was 25khz and actual spindle speed was 197 RPM.
I also noticed that if you run the driver test first the rpm in the DRO actualy
will change up or down when you load TURN. The plugin  didn't behave very well on my end since one time
I could load a threading program and watch the correction change as it was threading, then it didn't work,
then sometimes it would show 5 slots, then no index based rpm.

BTW, I could only get the graph to display for 32, 64 and 128 samples. If spindle speed was increased
then maybe 16 samples would show. No graph past 128 samples though.

I also attached a file which shows what i did to get the graph to display.

RICH




6289
General Mach Discussion / Re: Problems threading on the lathe
« on: May 01, 2009, 03:30:50 PM »
ART,
I got the graph to work.
Will post some pics and also a file on what did to do to get it to work.

RICH

6290
General Mach Discussion / Re: Problems threading on the lathe
« on: May 01, 2009, 02:38:50 PM »
Hi All,
Well no joy here on the graphic display for version 024 or 027.
Tried using the files from reply 264 & 271.
 
Using a 4 slotted disc and timing.
Here is a screen shot using version 027 and using sys file from reply 264.

RICH

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