Support Z bottom distance not being working as expected

[kingend 0]

This is causing supports to break mid-print and spagetti. I am using cura 4.5

 

Note in the below screenshot that 'Support Z distance' is set to 0.12 which is equal to the 'layer height' setting

I expected supports to start printing with a '1 layer gap' on the model but supports started printing after a 3 layer gap.

 

Can anyone help?

 

[kingend 0]

I posted here because this seemed like the best forum for cura questions

any thoughts anyone? feedback is greatly appreciated

 

[tinkergnome 927]

not sure, but i suspect the "Support Stair Step..." settings.

 

[kingend 0]

Thanks for the reply.

Good thinking - But I tried changing the 'stair step settings' and that did not make any difference

 

I am out of ideas at this point.  I will have to place a support blocker so that the weak supports that failed are not printed.

 

I did not want to resort to such workarounds because I dont know which support would fail where when I print a model for the first time. I wanted a reliable printing experience.