Can't boolean?

aaron_2

Hey guys, I can't get this to Boolean, any ideas why?

clayton_ertley

I made a private copy and tried to do a union with no success. If I had to guess I would say it is because of the geometry shown in the picture I have attached.

If you could fix that and try, It may work. Other than that, you will need to wait until an OnShape employee answers.

clayton_ertley

Were you trying to union. If so, what for? It looks like some kind of cell phone cover.
If you are going to get it printed, you will likely need to cut some holes in the hollow areas. if the printer to be used uses support materials (i think you can get away with it using FDM)

I didn't notice anything to gain from a subtraction. Please advise.

lougallo

@aaron_2 I have converted it to a question.  Go ahead and pick your answer...

clayton_ertley

Your link seems to be broken. it sends me to a page that looks like the picture I have attached.
If it was a link to a model make sure it is public.

aaron_2

try this one. I guess I didn't make it public the first time I tried.
https://cad.onshape.com/documents/30a36e1cbcc740668d747e84/w/d501b5ef4c4e4745bc6533c5/e/eb06b400bff648119c5d8271

clayton_ertley

I made a private copy and tried to do a union with no success. If I had to guess I would say it is because of the geometry shown in the picture I have attached.

If you could fix that and try, It may work. Other than that, you will need to wait until an OnShape employee answers.

jakeramsley

Are you trying to boolean all of the parts together?  It seems to be succeeding for me.

clayton_ertley

Were you trying to union. If so, what for? It looks like some kind of cell phone cover.
If you are going to get it printed, you will likely need to cut some holes in the hollow areas. if the printer to be used uses support materials (i think you can get away with it using FDM)

I didn't notice anything to gain from a subtraction. Please advise.

aaron_2

I think you was correct on that. I had to redesign because I hadn't yet added a feature which in turn changed the design of this and it now works. thanks for the help.

clayton_ertley

No problem. I am glad It worked for you.

I looked at the model again and I see the boolean worked. I see that I was wrong about what it was. May I ask what it is?

jakeramsley

The most common cases I run into failing to boolean are either my parts don't actually touch or they touch at an infinitely small edge resulting in a non-manifold edge.  

aaron_2

jakeramsley said:

The most common cases I run into failing to boolean are either my parts don't actually touch or they touch at an infinitely small edge resulting in a non-manifold edge.  

I believe that is what happened as in the picture Clayton showed, I have change some of the designs so it is working now. Thanks for the help.

aaron_2

clayton_ertley said:

Were you trying to union. If so, what for? It looks like some kind of cell phone cover.
If you are going to get it printed, you will likely need to cut some holes in the hollow areas. if the printer to be used uses support materials (i think you can get away with it using FDM)

I didn't notice anything to gain from a subtraction. Please advise.

It's for a 7 inch tablet, thanks for the reminder on the holes. I knew it had to have them and totally forgot. Oh so I wish I could afford my own printer right now. I have so many designs as they are all for 3d printing and are not able to utilize them right now.

clayton_ertley

Oh!, I was so close! Were you going to use shapeways? If not, I would recommend them. I have always gotten great service from them. They also have a really good built in software that checks the model for problem areas.

Good luck with your design.

P.S I know how you feel about the printer! My wife and I are saving for a Formlabs SLS printer. I can't wait!

aaron_2

Yeah I actually have a store with them lol, AaronSC, check it out if you'd like

clayton_ertley

I will! I also have a store but haven't put up anything in a while.

aaron_2

I like the work the sls printers do but I think I would rather have an fdm. Seem like they would work better for most of my designs,

clayton_ertley

Oh? How so? I usually try to go for the best detail. Every time I try to do something that has to snap into place in end breaking the print.

aaron_2

maybe I am wrong.  I need as many material options as possible.

andrew_troup

De methodis non est disputandum 

VinceHaley_SkillCoach

Hey aaron_2,

I made a private copy of your model and began looking at some of your construction methods. I noticed in sketch 1 splines were used. However, the end conditions were not constrained adequately. Have a look at the screenshot I took. I'd say cleaning up such conditions that may exist throughout the model will help significantly. - I'll be happy to share other modeling practices if you want to continue the discussion.

stg434

clayton_ertley said:

Oh!, I was so close! Were you going to use shapeways? If not, I would recommend them. I have always gotten great service from them. They also have a really good built in software that checks the model for problem areas.

Good luck with your design.

P.S I know how you feel about the printer! My wife and I are saving for a Formlabs SLS printer. I can't wait!

Also consider 3DHubs, https://www.3dhubs.com/

Community based 3D printing services.

michael3424

aaron_2 said:

maybe I am wrong.  I need as many material options as possible.

You might consider the Zortrax M200 for US$2,000.  It has limited filaments as shipped but Z-Temp, a 3rd party add-on, allows you to use other filaments.

aaron_2

HI everyone, I have figured this out, so thank to all that has helped. Now the new question is how to mark this as answered as I no longer see the option.

aaron_2

stg434 said:

clayton_ertley said:

Oh!, I was so close! Were you going to use shapeways? If not, I would recommend them. I have always gotten great service from them. They also have a really good built in software that checks the model for problem areas.

Good luck with your design.

P.S I know how you feel about the printer! My wife and I are saving for a Formlabs SLS printer. I can't wait!

Also consider 3DHubs, https://www.3dhubs.com/

Community based 3D printing services.

A big thanks for this tip I have been looking for more print services and this on seem awesome.

clayton_ertley

I don't think you can mark this as answered as it appears to be a discussion.

aaron_2

clayton_ertley said:

I don't think you can mark this as answered as it appears to be a discussion.

I guess that would make since lol.

aaron_2

michael3424 said:

aaron_2 said:

maybe I am wrong.  I need as many material options as possible.

You might consider the Zortrax M200 for US$2,000.  It has limited filaments as shipped but Z-Temp, a 3rd party add-on, allows you to use other filaments.

Thinks for the tip, I will look into it. That transmission makes me smile every time I see it.  That print quality looks really nice from the picture.  Do you know what the highest resolution is?

lougallo

@aaron_2 I have converted it to a question.  Go ahead and pick your answer...

michael3424

aaron_2 - the smallest layer thickness for the Zortrax M200 right now is 90µ - they promised smaller layers in future but no action on that in over a year so I'm not hopeful.  It uses a 0.35 mm nozzle but the X/Y resolution is much less than that.