cylinder with narrow base

[aag 6]

I need to print this small cylinder with tough PLA +PLA. The outer tube is just an ad-hoc support that I made in order to minimize the likelihood that it gets knocked over. I was hoping that Cura fill the space between the cylinder and the tube with PVA, but it doesn't. Is there a way I can force it to produce a PVA support there?

[TheodorK 11]

If you select the option 'support blocker' on the left side you can set the settings of the block that appears as 'print as support' this will force support in all areas of that block, and thus in between both cylinders if you place them there.

 

If you enable a birm and enable z-hop there is also little chance for the narrow cylinder to get knocked over and then you probably dont need pva support