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Messages - fer_mayrl

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231
General Mach Discussion / Re: New PlugIn
« on: January 17, 2007, 12:44:39 AM »
This was covered in the feature requests section a while ago, a Brazilian guy, Junior, was working on a board that converted encoder inputs into step and direction signals, so you could control a robotic arm in real time, no move recording tough.

Regards
Fernando

232
Feature Requests / Re: Parametric Programming
« on: January 16, 2007, 10:28:42 PM »
Darc,
just save the code, dont save it as something else, that should work

Regards
Fernando

233
Feature Requests / Re: Parametric Programming
« on: January 16, 2007, 07:08:34 PM »
From the top of my head I beleive its like the following:
for a 20mm bar following the program you posted

CODE "G90 G55 G21"
CODE "G00 Y11" ;Rapid into 1.0 away from job
CODE "G01 Y-11 F300" ;Cuts in to -11.0 (½Ø + 1.0 further)
CODE "G00 Y300.0" ;Pulls away from the job
CODE "M30"

basically the syntax is the following:

CODE "whatever Gcode you want"

You can add variables to this syntax like this

#1=GetOEMDRO( DRO number) ;whatever DRO you put in the screen, lets say you put a 10 in that DRO
FEED=GetOEMDRO( DRO number); whatever DRO you pout on screen for inputing the feed rate, let say you put a 300 in that DRO
CODE "G01 y" & #1 "F" & FEED

this woudl simulate the following line
G01 y10 F300

Hope that gets you started
Fernando

234
Tangent Corner / Re: Stand alone indexer
« on: January 16, 2007, 12:04:24 PM »
Well I googled and found lots of circuits concerning stepper drives, and stepper pulse generators. but the thing is, none of them controls the number of pulses sent out. For instance, I know I need the stepper to pulse 400 steps for it to position an indexing table, all the circuits I found, could make the motor move at a specified frequency, but none of them started the motor, pulsed 400 steps and then stop, and stand by for next operation.

The cubloc option sounds viable, you tell it how many steps and at what frequency you want it to output and it does so you can then use that into a gecko driver. Very simple, and with some not so complex loops, you can even ramp the speed as not to accelerato too abruptly.

Hope it works. Im still looking for some other options though.
Thanks
Fernando

235
Tangent Corner / Re: Stand alone indexer
« on: January 16, 2007, 11:30:21 AM »
thanks merlin,
Ill look into it. it sounds interesting, im not into electronics, but i think i could make it happen.

Ill google some circuits to see if i find anything that would suit my needs.
Regards
Fernando

236
Tangent Corner / Re: Stand alone indexer
« on: January 15, 2007, 04:35:57 PM »
Thanks Graham,
Yea thats kind of what im looking for, altough im gonna give the cubloc guys a try, since I only need one stepper motor index, and I will most likely use a PLC, that little device can handle what I need.
Thanks again
Fernando

237
Feature Requests / Re: Parametric Programming
« on: January 15, 2007, 11:42:28 AM »
Darc,
You can do this, its simple.
I can think of two ways.

1. If you are always using the same diameters (for example 10 different diameters), do a screen (or wizard) with 10 buttons, each with the VB code for each diameter, so you will have a button for 20mm, a button for 16mm, and so on and so forth. You will have to use the sintax required to run a gcode in VB.

2. If you have a large number of diameters and it is prohibitive to have a button for each, make a screen (or wizard) , with a DRO in which you can input the diameter of the bar you want to cut. then Just have a button that reads that DRO and inserts it in the #1 variable you proposed.

Hope that gets you started.
Regards
Fernando

238
LOL,
Thanks a lot guys, I was just kidding with the not receiving any comments stuff, but it sure feels nice to have someone compleiment your work!

Thanks again
Fernando

239
Tangent Corner / Stand alone indexer
« on: January 11, 2007, 11:46:22 AM »
Hello guys,

I have a proyect in which I need a stepper to move a certain amount (always the same) when a signla is sent. Which means I need a stand alone indexer thats sends out lets say, 20000 steps, when an input signal is activated. There is no direction changes, no speed changes, an acceleration profile (trapezoidal) would be nice.

I know I could do this with a PC and mach runing the show, but for a single axis, single move, I think its overkill.

Does anyone know of any circuits, or a comercial unit that could do this. Im sure this would be an easy task for a pic, although im no programer, and no electronics expert.

Regards
Fernando

240
Thanks Benny,
I was beginig to wonder if I was too excited about that piece because nobody posted about it  ;D

Yes it is resin based with some fillers and pigments

Thanks
Fernando

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