Aligning part along edges in an Assembly

william_frame

https://cad.onshape.com/documents/d5fff3eb1e9025d3422a29cd/w/d8972404ab2fd069c6042836/e/b4b81b1cff35d8c4b7eed54a

The Assembly in this folder has two parts that I want to join along the end edges resulting in both parts leaning inward, like two sides of a pyramid. I have tried Fasten mates at both the midpoint at the edge and at the top of both parts. The midpoint is close but does not want to slope both pieces. Any suggestion or solutions would be appreciated.

Thanks!

martin_kopplow

Maybe you want to try this.

You need to let the system find the lean angle for you. So, it might be a good approach to use the rotate instead of a fixed mate.

robert_scott_jr_

Hey William. Is this what you are trying to achieve? - Scotty

CADNurd

If it was me, I'd start from scratch with something like this - everything lined-up and centered - much easier to work with - https://cad.onshape.com/documents/7885295bd717be1d6d77bac0/w/5aa7a21ad83164edaf634126/e/c297158cde7ffef96d0e6cba?renderMode=0&uiState=696bd20b3404320170626327

You could keep the central 'construction body' and hide/show it as needed.

william_frame

https://forum.onshape.com/discussion/comment/125691#Comment_125691

Yes, this is exactly what I am trying to do. I will have to copy your and look at it for a while to completely understand exactly how you did it. Question: what is the Triad and what is its purpose?

Thanks for the help.

And Thanks to this forum for always being quick to provide help with this kind of thing.

nick_papageorge_dayjob

The entire approach is less than ideal. CADNurd has the best idea to start over. You want to model this in-position, and then there is nothing to do in the assembly. Particularly because whatever joint you come up with should be driven by the design. The way you are doing it now, is you modeled everything flat, and must have calculated the angles beforehand, and are now trying to assemble it. That's backwards.

The other way, if you decide to bevel the corners, or pin them with dowels, or make dovetails, etc, everything will be lined up.

william_frame

https://forum.onshape.com/discussion/comment/125703#Comment_125703

YES! I like this approach much better. No Mates, everything lines up while being drawn. Much cleaner. Thanks!

martin_kopplow

Well, most times, the answers very-very much depend on the question.

@william_frame asked how to align these parts in an assembly. They could have been re-used, imported or self-drawn - who knows? So I just answered the question at hand.

@CADNurd saw the mess was already done in the initial approach and proposed to start over, even though that was not the question.

I fully agree that starting over would be the best thing to do here. If only beginners knew how to ask for the right solution … ;0)

glen_dewsbury

This is one of my thoughts are how to position and accomplish your assembly.

Sure wish 3 point plane was available in sketch mate connector.

https://cad.onshape.com/documents/e113f7eed3c72dc9f3b890ac/w/cbfed826a209d1451d332c0a/e/5ddef27306fb1beaabfb1d0b

nick_papageorge_dayjob

William: What are you planning to do in the corners? What type of joint will be there? Are you building this for real? Is it 3d printed, wood, or something else?

nick_papageorge_dayjob

Here is fine tuning what CADNurd started. This is for a butt-joint corner style. Notice extending the bottom is required before the split. The splits get the whole design flat on the top, flat on the bottom, and make the butt joints.

The assembly is just a rigid insertion of the part studio, with the template part supressed. Or, delete-part of the template could have been used in the part studio before the asm was made.

Now, if you want to change the size of the box, or the angles of the sides, everything will update easily.

https://cad.onshape.com/documents/998d5d819c7fac1287458a76/v/1b59f4ff6578d1c77e44117e/e/db8388a5aaaa049dfd2289f4?showReturnToWorkspaceLink=true