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Messages - fer_mayrl

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411
General Mach Discussion / Re: 5 axis gantry router
« on: December 06, 2005, 04:00:43 PM »
If you have a good mechanichal background, I think the biggest challenge with this would be the CAM part of it, good 5 axis CAM packages dont come in cheap.
I beleive there is a software called cnc toolkit, there is a yahoo group called the same way, the software was developed for the hobiest in mind, and it runs within 3dstudio. Havent tried it, but i have read its pretty good. The moderator there has built a 5 axis machine, and a lot of the posts are related to building one. Give it a look, the website is http://groups.yahoo.com/group/CNC_Toolkit/
and rab (moderator) has a website with his creations
http://www.rainnea.com/cnc.htm
Hope that gets you started

412
General Mach Discussion / Re: where is the motor reversal box
« on: December 06, 2005, 02:06:11 PM »
They are in the config--> homing/limits, there is a column that says reversed, you can add a checkmark to the ones you want reversed.
Hope this helps
Fernando

413
General Mach Discussion / importing DXF files
« on: December 01, 2005, 12:23:25 PM »
Hello,
When importing dxf files, how do you get mach 2/3 to compensate for tool diameter?, how do you get it to know if the profile yoou want to cut should be cut from the inside or the outside?
I guess one way arount it is to offset the geometry in a cad program so the new geometry follows the center of the tool, instead of the outline of the geometry you want cut.
Regards
Fernando

414
Promote and discuss your product / Re: VCarve Wizard CNC Software
« on: November 16, 2005, 12:25:55 PM »
Have you tried posting the g-code as is, and then scale it in Mach 2/3?
You would have to take into consideration that you should also scale down the bit.
Cheers!

415
General Mach Discussion / Re: Automatic tool changer
« on: November 10, 2005, 01:44:00 PM »
My mistake!, I knew there was something different in the accent.
I downloaded your probe macro.
I kind of dont know exactly the process of using a tool probe.
Let me get it straight, Every time I start a job I MUST zero the top of the part with, say, tool 0, sun the probing macro so that the distance between part zero and tool probe is known, from then on, the machine will make the tool changes and probe every one of the tools so the offset can be updated.
Am I in the ballpark?
I think my problem was that I dont have a tool probe wired right now, so the Z axis just kept lowering itself.

Now I just have to get all my stuff together, spindle with auto tool changer, VFD for spindle, collets and tool holders, tool rack and tool probe  :-\
Quite a shopping list! Good thing im not married.
Regards
Fernando
PS, thanks for the support, and for the great video

416
General Mach Discussion / Re: Automatic tool changer
« on: November 08, 2005, 09:38:44 PM »
Got it working, in theory anyways, havent made the tool holders, and i still dont have a powered draw bar spindle.
For now ill make sure all my tools measure the same,, since I couldnt get the tool probing after each tool change to work.
Thanks for everything,
Specially Art, got it working thanks to a post he made on the yahoo forums, scripting video, and the tool probing video.
Regards

417
General Mach Discussion / Automatic tool changer
« on: November 05, 2005, 02:44:31 AM »
Hello,
I wanted to add a toolchanger and a tool touch off to my cnc router, I have no idea on how to implement this using Mach3.
Mechanicaly im thinking I would need a columbo splindle, or something similar with a power draw bar.
Set all the tools on a rack with a defined position for each tool.
Im thinking when the programmed gcode asks for a tool change, Mach3 will stop the spindle (M5?), travel to the position in the rack where the tool that is in the spindle should be, put it there, send and output signal to release the powered draw bar drop the tool, move to the requested tool position, send the output signal to engage the powered draw bar, and then move to the touch off plate so the tool offset can be set, and off we go to machining... sounds simple enough... if I just knew how to code a macro for that.
Does anyone have a  macro that does this same thing?
Im not too familliar with the touch off, can the plate be anywhere on the table? or does it have to be at a determined height?
Hope i was not too confusing, my English is not that good.
Greetings from Mexico!!

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