Question: cutout offset?

[Pau (Pau T)]

Hi all,

Newbie here, having some issues, thought maybe someone may be able to help.

I designed a drop tray. Last toolpath is my cut out (contour). I set an off set (outside right). i run the simulation, it looks perfect, then when it goes to the my stock its cutting it without the offset.

Any ideas or suggestions?

Thanks!

[WillAdams (William Adams (Carbide 3D))]

Upload your file?

I recommend this quite a bit, see:

Best Bit for full cut through

One which has a cutting flute length equal to or greater than the thickness of the stock — pretty much any tool should work. Big thing is the toolpaths — if cutting out, rather than just cutting a slot: [image] Offset to the outside by endmill diameter plus 10% or so: [image] [image] [image] Then cut as a pocket: [image] down to tab height or the penultimate pass: [image] then move the contour down to below the pocket and start cutting at the bottom of the pocket: [image] and…

[Pau (Pau T)]

Shark Drop Tray Square.c2d (104 KB)

Here is the file. Thansk!

[Pau (Pau T)]

This is where I had to stop the file

[WillAdams (William Adams (Carbide 3D))]

You are cutting to a depth of 0.77":

with a tool which only has a cutting flute length of 0.5":

Use a longer, more rigid tool, and offset by endmill diameter plus 10%:

Attached as a v7 file — if this doesn’t cut well, upload a photo and we will look into it with you.

Shark Drop Tray Square_v7.c2d (116 KB)

[Pau (Pau T)]

Thanks for your help. Its working.

The thickness of the lip is only .11.

I believe I programmed it to be .25

Lastly, I’m still what i did wrong on the original file, and why it did not obey the offset?

[Pau (Pau T)]

@Pau

Lastly, I’m still what i did wrong on the original file, and why it did not obey the offset?

Correction

Lastly, I’m still not sure what I did wrong on the original file, and why it did not obey the offset?

[WillAdams (William Adams (Carbide 3D))]

The lip is quite narrow in your file:

scarcely more than 1/8".

[Pau (Pau T)]

Thank you again for all your help! Much appreciated!