No Support for Part Not Touching Buildplate

[ttrickel 0]

I'm thinking it may be to how thin the structure is but why doesn't Cura create supports for the ring around the cone?

 

First image is of layer 1. Notice the Skirt doesn't extend around the entire part.

 

Second image shows layer 3 - the first layer with the ring around the cone.

 

What am I missing? Never mind why the part was created this way - I'm just the printer. 🙂  (I sent feedback to the designer already).

 

Thank you for your help.

[kmanstudios 1,120]

Please save the project file and upload so we can see the issue itself.

[gr5 2,234]

To do that do "File" "save project..."

[gr5 2,234]

So your object probably doesn't have a flat bottom.  One end is around 0.2 to 0.4mm lower than the circular part.

 

One solution is to fix it in cad.

 

Another is to go into "preferences" "config cura" and uncheck "automatically drop models...".  Then click on the part and select the move tool on the left and enter -0.5 for the Z position and reslice.  This will chop off the bottom 0.5mm of your part which is hopefully not a big deal.

 

[kmanstudios 1,120]

If I am reading this correctly, he knows the part is made a certain way, he just does not know why it will not put supports under the round part.

 

9 hours ago, gr5 said:

To do that do "File" "save project..."

Thanks for putting that in 🙂 

[gr5 2,234]

5 hours ago, kmanstudios said:

, he just does not know why it will not put supports under the round part.

Oh, right!  Maybe this one: "support Z distance".  Try setting that to zero.  Or maybe something else - post the project file and we can figure it out quickly.

 

Are you doing PVA support?  Don't answer that - just send us the project file and we can see for ourselves.

 

[ttrickel 0]

Thanks for looking at this.

UMS5_conical cup aero arm with chamfer.3mf

[kmanstudios 1,120]

OK, I took a look and this is what I found:

 

The PLA/PLA combo is not really needed. If nozzle 1 & 2 are using the same material, there is no real gain.

 

However using PLA as support has different tolerances between the support and the model itself. More gap for better removal of the supports. There is no harm in using the PLA, just know it has different requirements than if you used PVA as the support such as this file I saved for you so you can see the difference. Just load and hit slice and you will see it works.

UMS5_1756110576_UMS5_conicalcupaeroarmwithchamferPLA_PVA.3mf

 

Now, if you wish to use PLA as the support, just raise the model about 1mm from the buildplate. It will slice with the support all around the object as needed.

 

You may have more questions and here is where to get your follow up. 🙂

 

[gr5 2,234]

2 hours ago, kmanstudios said:

Now, if you wish to use PLA as the support, just raise the model about 1mm from the buildplate. It will slice with the support all around the object as needed.

Yes.  This.