A very good morning to you all. I am very new to this so I would be very thankful if you can help me please
I have build a cnc machine from scratch size is 2700 x 2500 mm
My problem is when you have router a piece of work from the work piece and removed it. There is still alot of empty places on the board left. How can you adjust or have your router to start cutting on the blank without removing the board from your table. I have tried to take the router to a specific place. Then zero the x and y axis but at soon as you send your job to the machine and you start the cycle it starts at your homing position
Have a great and blessed day
Help please
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- Adrian
- Vectric Archimage
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- Model of CNC Machine: ShopBot PRS Alpha 96x48
- Location: Surrey, UK
Re: Help please
Depends on your workflow and how your control software works.
For me I would start with the material defined as 2700x2500 in the Vectric software and cut the job. I would then create the next job using the same setup but moving the previous vectors to another layer so they aren't picked up by any toolpaths and then repeat until finished.
I actually use an outside vector the size of the board and then use that in conjunction with the already cut vectors to create a boundary vector for use with nesting to make the most efficient use of the remaining material.
So there is no need to reset the XY at all. In fact as everything I do these days is on 8x4 boards I haven't reset my XY zero for years.
You can start with a new smaller job every time to fit part of the remaining material and reset the XY zero on your machine to be on the uncut portion of the board. It sounds like your XY zero isn't "taking" when you set it if it's ignoring it. It might be that your post processor is hard coded to 0,0 as I've seen that before but it's unusual. Which post processor are you using?
For me I would start with the material defined as 2700x2500 in the Vectric software and cut the job. I would then create the next job using the same setup but moving the previous vectors to another layer so they aren't picked up by any toolpaths and then repeat until finished.
I actually use an outside vector the size of the board and then use that in conjunction with the already cut vectors to create a boundary vector for use with nesting to make the most efficient use of the remaining material.
So there is no need to reset the XY at all. In fact as everything I do these days is on 8x4 boards I haven't reset my XY zero for years.
You can start with a new smaller job every time to fit part of the remaining material and reset the XY zero on your machine to be on the uncut portion of the board. It sounds like your XY zero isn't "taking" when you set it if it's ignoring it. It might be that your post processor is hard coded to 0,0 as I've seen that before but it's unusual. Which post processor are you using?
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Re: Help please
In many of the built in post processors, in the Header section of code there are XY home commands
[XH] [YH]
removing these should help solve your problem.
[XH] [YH]
removing these should help solve your problem.
- Adrian
- Vectric Archimage
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Re: Help please
XH and YH are the home positions as set in the Material Setup. For most people those are 0,0 which then corresponds to where XY zero is in the Job Setup. Usually bottom right or centre of the material. If the OP is setting XY zero on his machine to a location somewhere else on the board then it shouldn't matter as far as Vectric is concerned as that will be the XY location hence why I think he isn't actually zeroing XY. The XH, YH move should be taking the machine to where he has set the XY zero.
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Re: Help please
hi Adrian ,
thank you so muchfor your reply . I will have to attend to the machine during the weekend again but as far as i know i am using the ( USBCNC) ( mm) ( *.NC) post prosessor.
so just another question please if you dont mind me asking i see that your a long way into this cnc stuff
must one " REF ALL " everyday when you start up your machine
best regards
shane
thank you so muchfor your reply . I will have to attend to the machine during the weekend again but as far as i know i am using the ( USBCNC) ( mm) ( *.NC) post prosessor.
so just another question please if you dont mind me asking i see that your a long way into this cnc stuff
must one " REF ALL " everyday when you start up your machine
best regards
shane
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Re: Help please
MarshaJ847 wrote: ↑Tue May 03, 2022 5:46 pmIn many of the built in post processors, in the Header section of code there are XY home commands
[XH] [YH]
removing these should help solve your problem.
Hi Marsha ,
thank you for the advice you offered me i will check again as said i have only started my machine 2 weeks ago and everything seems really messed up for me cause there is still a lot of stuff to learn for me and where to search for everything
do have a great day
regards
shane
- Adrian
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Re: Help please
I don't on my machine but that doesn't mean it holds true for every machine. The only time I reset mine is if I've been doing maintenance on it or if I knock the gantry when it's turned off.Shane Heckroodt wrote: ↑Thu May 05, 2022 7:33 pmhi Adrian ,
so just another question please if you dont mind me asking i see that your a long way into this cnc stuff
must one " REF ALL " everyday when you start up your machine
best regards
shane
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Re: Help please
Good morning again to all
Please tell me what am I doing wrong
When deviding a work sheet into tiles and load the Gcode to the machine why does it not cutting where it is supposed to cut. If I select a Gcode in the middle of the work sheet where I have made the changes it does not start there. It however select the correct file but the cutting starts at my home position and not where it supposed to be.
Is there away that one can look where it is going to cut similar as on a laser machine where you can see if the workpiece will fit in that specific area.
Best regards
Shane
Please tell me what am I doing wrong
When deviding a work sheet into tiles and load the Gcode to the machine why does it not cutting where it is supposed to cut. If I select a Gcode in the middle of the work sheet where I have made the changes it does not start there. It however select the correct file but the cutting starts at my home position and not where it supposed to be.
Is there away that one can look where it is going to cut similar as on a laser machine where you can see if the workpiece will fit in that specific area.
Best regards
Shane
- Adrian
- Vectric Archimage
- Posts: 14544
- Joined: Thu Nov 23, 2006 2:19 pm
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Re: Help please
Where did you set the XY zero on the machine? Wherever it is set in Cut2D you have to set it the same on your machine so if you set the XY Datum Position to the middle dot in Job Setup then you need to set the XY zero on the machine to be in the middle of the material.
You can use the Preview Toolpaths on the Cut2D toolpaths tab to see where it all fits as far as the CAD/CAM side of things goes. Most control software has the option to do that with the code as well.
You can use the Preview Toolpaths on the Cut2D toolpaths tab to see where it all fits as far as the CAD/CAM side of things goes. Most control software has the option to do that with the code as well.