Trim Question

[navsENG]

I dont use trim all too often, I am trying to cut a slot at an angle. I was really trying to just do some sort of a 3d ramp of the contour but I couldnt seem to make that work.. 

 

I just did a 2d view of it to show an example, but even if I trim it, I feel like it will only cut the upper portion of the slot, and I would like to be able to get the same depth all the way

down, and not have a bunch of broken up toolpaths. 

 

 

[Leon82]

For lage production runs I offset a bunch of chains the length I want and chain my way down.

 

Smaller quantities I break it up in depths and shorten the lead in at the top cahins

[Leon82]

You can try a stock model, the a rest machine surface high speed

[navsENG]

24 minutes ago, Leon82 said:

For lage production runs I offset a bunch of chains the length I want and chain my way down.

 

Smaller quantities I break it up in depths and shorten the lead in at the top cahins

Thats a good way to do it, just a bit time consuming to draw it.. I dont mind doing that, just wondering if there was an easier method. Im thinking it may be better to just cut it from 0 and just do parallel cuts stepping in.

 

Ill try the stock model and see if I can make that work 

[navsENG]

Here is a better view, I tried to trim to the line but it didnt work. 

 

Basically all I am trying to do

[gcode]

Do you have the trim plane set correctly

It should be the same plane as the view in your last screen shot

[pullo]

I would do it like this :

1. Your last move in this groove will be a projection toolpath  made using your (I'm assuming)  flat end mill.  So make a projection toolpath and convert the toolpath to geometry (pic1)

2 use the toolpath geometry to create a surface like in pic2

 

3 Now you can make a flowline toolpath  with the surface . The programming diameter for your tool is something slightly larger than zero for no offset. (pic3) 

 

Gracjan

 

[gcode]

I think you have found a bug

I created a simple Trim operation in MC2018

It works correctly, but if you open to contour operation to make an edit

it can no longer be regened

The MX2018 file does open and function properly in MC 2019PB2 though

see the attached file

trim_x19.zip

[navsENG]

14 hours ago, gcode said:

Do you have the trim plane set correctly

It should be the same plane as the view in your last screen shot

Oops, I guess that is all it was. It must have kept the source operations plane 

[navsENG]

1 minute ago, gcode said:

I think you have found a bug

I created a simple Trim operation in MC2018

It works correctly, but if you open to contour operation to make an edit

it can no longer be regened

The MX2018 file does open and function properly in MC 2019PB2 though

see the attached file

trim_x19.zip

I noticed that too. If you re select the trim geometry, it seems to be able to be regen'd?

[gcode]

I submitted the MC2018 version of this file to QC

They replied that this is a known defect in MC2018 and has been fixed for MC2019

They also said the submission revealed a new wrinkle and has been issued it's own bug number