how can I generate support material using object manipulation settings  

RE: how can I generate support material using object manipulation settings

Or use paint-on support. Look at the model from below and paint the supports onto the overhang. 

RE: how can I generate support material using object manipulation settings

If the OP has used a modifier to create the recess they will not be able to paint that area.  There are no faces to paint as they don't exist.  It is one of the fundamental limits of using modifiers and painting together.

As such they are left with using ANOTHER modifier as described (although do make sure that the support enforcer goes further up that your recess modifier).  Or using global support defined using the angle setting.  But we know how auto supports suck in general 🙂

Of course the 'best' way is to add the recess in CAD in the first place.  And THEN use the paint tool to define the real faces where you want support 😉

RE: how can I generate support material using object manipulation settings

Very true.  Truth is I had no idea what OP meant by "object manipulation"  If it means creating holes with modifiers, then yes painting on won't work. 

RE: Closer but still no support material generated

I'm closer but I still don't see support material generated in the recess which is 1.5in dia x .125 in high. I have supports for support enforcers only. Under the print settings I clicked generate support material and auto supports off. I added a generic cylinder 1.52 in dia x 0.128 in high at 0, 0, 0 in the object coordinate system which should place it in the recess area. After I slice it I still don't see any support material. Evidently I'm missing something. I attached the updated project. Ideas or suggestions are greatly appreciated.

RE: how can I generate support material using object manipulation settings

Can't see a project attached. Needs to be zip compressed or the server software will silently reject it. 

RE: how can I generate support material using object manipulation settings

thanks. I tried twice and no complaints but also no file

RE: how can I generate support material using object manipulation settings

Just to clarify: When I load the 3mf I see supports being generated:

So I assume you're concerned they don't extend all the way up to the "roof" of that opening. Try turning "Thick Bridges" off, this gives me reasonable supports. I would probably also switch to snug instead of grid support, which usually gives you much better results, plus increase the top z distance to 0.2, for easier removal. 

There are also plenty of other changes from the default profile, I didn't check which make sense and which don't. 

RE: how can I generate support material using object manipulation settings

please post your version of the  project. I have something different that doesn't show the support material. Mine shows the top of the recess. It is probably something in the  print tab. I should be able to compare your version with mine and spot the difference.

RE: how can I generate support material using object manipulation settings

I don't have a version. I just opened the 3mf you posted. 

RE: how can I generate support material using object manipulation settings

Can you post a screenshot of what you're seeing?

RE: how can I generate support material using object manipulation settings

@jimd

While I'm sure @fuchsr has this covered as I recognize him as a very capable individual, I took the time to adjust the supports, and want to know, as fuchsr what you might be seeing on your end. If I remember correctly this was for a musical instrument?

This might help, I do know that 2.7.4 has some issues that could cause this, this file was made in 2.7.1.

Millennium sole with supports_Snuff.zip

RE: how can I generate support material using object manipulation settings

Here is what I get.

RE: how can I generate support material using object manipulation settings

No bueno!   try the file I sent and post that image.

RE: how can I generate support material using object manipulation settings

Good memory it is the bottom (sole) and negative battery contact for an electronic bagpipe I designed and built to see if I could do it,  There are only three I've built or intend to build. For me the challenge is what drives me.

The changes I made to the design were to correct some weak points in the print. Thanks for helping me get this sorted out.

I see a difference but still not a solid support.

RE:

@jimd

I purposefully did not do solid support and used a ring, as the solid support might have been difficult to remove, I guessed as to the length the bridging would need to be to produce a reasonably clean result and still be relatively easy to remove. If this is not the case please send me a private message and I can help further.

It also occurred to me that you might be printing this from ABS, as this seems to be the best material for this part, based on what I know of it.

perhaps I'm wrong.

I hope this helps you Jim.

RE: how can I generate support material using object manipulation settings

Thanks for the help. Yes I'm using abs. Pla was too brittle. I'll run your project in the morning.

RE: how can I generate support material using object manipulation settings

I had to test my printer, so was about printing a benchy. But, hey, lets test this printfile. 
- Opened the file you have sent. 
- Removed layers; added a support enforcer (flat cylinder); 
- sliced it for PLA (what is now on the printer); layerheight 0,2 mm
- no errors, just fine, uploaded and printed. 

Some pictures to show result. (with conclusion: the file you made is very perfect! Printed in PLA on old MK2.5 already looks very fine. 

RE: how can I generate support material using object manipulation settings

I had to test my printer, so was about printing a benchy. But, hey, lets test this printfile. 
- Opened the file you have sent. 
- Removed layers; added a support enforcer (flat cylinder); 
- sliced it for PLA (what is now on the printer); layerheight 0,2 mm
- no errors, just fine, uploaded and printed. 

Some pictures to show result. (with conclusion: the file you made is very perfect! Printed in PLA on old MK2.5 already looks very fine.