How to print this part?

[trey5KJGS]

I am providing the .f3d file and a picture of what was printed. I am hoping someone can help me understan how to print this so that I do not get the mess that I'm getting that you can see in the photo. I am using Simplify3D for slicing. Any help and understanding would be appreciated.

[davebYYPCU]

Which way was it printed, if I am looking at the bottom of the print, then easy -

no support or insufficient support for the internal ledge.

If that is a fault at the top of the print, it is not sticking to the lower layer, harder to say why.

My 2 cents....

[trey5KJGS]

The cup is facing down when printed. I tried the other way and it was worse. Not sure I know how to solve this issue.

[davebYYPCU]

I still don't know which way it was printed.  

The photo - this one was printed like a cup or a dome on the printer table?

[trey5KJGS]

The top with the internal threads is down and the bottom with the external threads is up. The photo is showing the top facing up which is opposite of the print orientation .

[davebYYPCU]

I think you are saying the print was done as a Dome.

Turn on Supports in the slicer., should fix it.

[trey5KJGS]

Dome

[etfrench · Accepted solution]

It won't matter which way you print Component2 as it has threads on both ends.  You will need to add support.  I would print it with the bottom down.  This will allow you to use a separate mechanical piece to support the inner part.  You can print this piece with HIPs to make removal easy.  (You just need to pause the printer when you reach the start of the inner part and insert the mechanical support piece>)

If you're printing with 1.75mm filament, reduce your layer height to the minimum your printer will support.  I normally use .07mm and can go to .05mm on difficult prints.  You can also try using a higher temperature and/or slow the print speed down while doing the threads.

Another option would be to use larger threads if possible.

p.s. You won't be able to print Component1 as the minor diameter of the thread is smaller than its base.  You'll need to redesign both parts in order to fix this.

[davebYYPCU]

Sorry, I haven't seen the file, just the photo.  One part.

Didn't see any threads, as in screw threads, just threads from overhangs.  Sorry for the confusion.