Tricks to cope end of a tube

workspace_cope2.kmz (341.0 KB)

Also, if i did this, i would have my zero in center, and offset Y sthing like i have done here. Makes it way easier to set zero. Z and X zero becomes the highest point on the pipe, and Y becomes whatever measurment you decide. Preferably the length of the cut, and that is sthing you would have to measure in whatever cad software you use.

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added a rough pass…will send picture when done…lots of extra time as the stock can not be set to handle round tube…had to make a fake part in Onshape…not sure why wanted to rough out the tube from rectangular stock


trying to figure out why just change the size of end mill I have these results
the 1/4 endmill would be the type of rough operation I would want except I wanted to use the 1/8 endmill. this is why I made the dummy part

I will try your stock offset trick

where as I am now able to cope an end such as is shown above I am not having much luck with this end of the tube

workspace_KIRI_REAR_END_COPE (4).kmz (2.3 MB)

i look at this from the perspective of the tool and it’s a very challenging surface. what are you hoping the path would look like? you could try an area surfacing pass.

workspace_KIRI_REAR_END_COPE_area_surface.kmz (3.3 MB)

that worked switched to 1/4 cutter….lots of settings I have no idea what they mean

workspace_KIRI_REAR_END_COPE (6).kmz (2.3 MB)

thank you ….sent donation

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unwanted issues

workspace_RH_BR_1Ta (3).kmz (2.3 MB)

the selection inside the pipe is the culprit.

but can not de-select that in this mode….ended up with this

workspace_RH_BR_1Ta (4).kmz (2.3 MB)

had to expand the diameter to keep from cutting into side tube apparently going down before step over or something….

this is what the selection and animation looks like for me

yes enlarged so the side of the tube was not hit as shown in the picture….before and after

in the animation you can see the cutter hitting the side even though it is hitting air if the part was really that size it would have cuts in the side….the side of the cutter is cutting into the part where as I thought the side of the cutter was supposed to cut the part not cut into the part

repost for edit and explanation……might be a protocol that should be fixed…..