It would be helpful to get an explanation how to create tabs in fusion 360 to help prevent tip ups.
When you are setting up your Cut in Fusion On the Geometry tab at the bottom is the Tabs check box. 
Once the Check box has been checked you can setup your Tab parameters Like how wide the tabs are and how far apart the tabs are or you can set the points where you want the tabs to be.
You might need to play with the thickness for your tab to get them sturdy enough to hold but easy to remove. This is going to depend on the material you’re cutting an your torch’s kurf. For stuff 16Ga or thinner running a .8mm nozzle I’d look at a .125" or .135" tab min.
I really hope this helps with understanding and using tabs.
Bruce
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