Using STL file in mastercam and Define stock At Rough Flowline

[crayzcnc]

Using STL file in mastercam and Define stock At Rough Flowline

 

Hi,

I am using mastercamX.

I want to machine to cast iron.

 

At Rough Flowline operation I cant define stock.

I am writing stock parameters but Mastercam didn't use stock.

Tool must starts operations top of stocks,

but tool starts operations top of part.

How can define stock?

 

 

And I want to define stock with stl file.

I can load stl file but mastercam doesnt use this stock.

Tool starts operation top of part.

I want to machine to cast iron.

I must define amorph shape stock.

And mastercam must use this stock.

How can I do?

 

Thank you very much.

 

MastercamX (10.0.12.2)

[jonahelisio]

I have had great luck in using verify with STL file setup as well as exporting the "machined" part out of verify as a STL.

 

You can set the STL file in the Machine Group Properties under Stock Setup Tab, but you might have to also activate the options button in the Verify Window and make sure the file is selected there as well. Also if you use the same STL all the time, In Settings -> Configuration -> Verify Settings, you can set the STL stock file globally.

 

There are many tools for creating the stock

in the Operations Manager including Select Corners, which you may have to create simple geometry to represent your stock first, or experiment with bounding box and NCI extents.

You can even create Cylinder stock if needed.

[crayzcnc]

I want to make milling.

 

At milling, tool doesnt start top of stock, does it?

[GI George]

Do you have a cast model that you can save as an stl? Or can you make something up?

[crayzcnc]

I load the main part file and

I go machine type->MILL->mill3axis vmc mm.mmd

then I go toolpaths->surface rough->flowline

I select boss

I select drive surfaces on part

I go stock setup

in stock setup->shape->file

I select "file" that "stock.STL"

I write essential parameter about tool-ballnose tool 5mm diameter

I regenerate all operation.

toolpaths appears.

Toolpaths start top of part not top of the stock.

I hope I can tell my problem ) I cant write very well Tool is cutting air mastercam mill cant see stock. can you help? thanks

[GI George]

I think that the only way you can use the stock to machine from is by using rest roughing tool paths. I know they will let you select a cad file to machine from. I could be wrong. I think this has come up before try doing a search on the forum for stl stock roughing and see what comes up.

[Superman]

Your procedure is almost correct

 

When selecting your "Drive surfaces", there is also a "CAD file" box available to select.

This is where you select the STL file of the remaining stock up to this operation

--> select all ops up to this op. and go to verify, before running the verify, goto options and pre-set a coarse setting to save the STL with( cannot be done at the end)- too fine a setting and you will get memory allocation errors and calculation time will be very long )

 

In this flowline, re-machining or what-ever, you select this STL and all the air cutting will be avoided

 

"Direction", if used, should be played with after you are satisfied the actual paths are OK

**** Direction will not work properly for zig-zag machining, in most cases****

[crayzcnc]

Thanks for answers. I can use stock at lathe but I can't use stock at milling. Can you send me example?

 

days days I am working on this work but I cant

[Superman]

I looked at your file ( inverted funnel )

Tried out the operation with the stock, I agree the stock is ignored.

This could be that the the toolpath is circular and has no approach from outside of the stock ( I'm only guessing here ).

 

I'll pose the question anywhay, Why do you need the toolpath to calculate from stock ?

Could you not use a Finish operation with an offset as roughing and, copy it, change the offset to zero and alter the stepover to finish it.

 

In verify, use the Stock.STL file before running your paths

 

 

Also Surface Rough contour ( that would recognise the stock file ) your toolpath would be a close match to this one