topic Re: Sweep with cube instead of sketch (or workaround) in Fusion Design, Validate & Document Forum

Sweep with cube instead of sketch (or workaround)

Anonymous — Fri, 17 Apr 2020 10:14:28 GMT

Hi, I'm trying to create an object that the equivalent of "sweeping" a cube in a straight line along one of its natural axis with a 45 degree rotation. I've tried sweeping the front and back face separately, but I can't sweep the 4 remaining sides as it's perpendicular to the sweep path. Is there another approach to this?

Re: Equivalent of sweep with object instead of sketch

g-andresen — Fri, 17 Apr 2020 09:28:37 GMT

Hi,

please show the process in a screencast and share your design.

günther

Re: Sweep with cube instead of sketch (or workaround)

Marco.Takx — Fri, 17 Apr 2020 09:47:18 GMT

Hi @Anonymous,

Like @g-andresen said, without seeing your design it is hard to help you with an answer.

Within Fusion 360, choose File > Export and save it on your desktop.
After that upload it to this topic so that one of us can take a look at it.

If my post answers your question Please use Accept as Solution & Kudos This helps everyone find answers more quickly!

Re: Sweep with cube instead of sketch (or workaround)

Anonymous — Fri, 17 Apr 2020 10:31:06 GMT

Hi Marco, I've included a video animation showing the cube motion that I'd like to form into an object.

Re: Sweep with cube instead of sketch (or workaround)

Anonymous — Fri, 17 Apr 2020 11:08:37 GMT

Hi @Marco.Takx,

I've attached my Fusion 360 project archive below with my attempt. Would you be able to help me?

Re: Sweep with cube instead of sketch (or workaround)

Marco.Takx — Fri, 17 Apr 2020 11:17:20 GMT

Hi @Anonymous,

Is this where you are after?

Within the Combine feature, I choose Cut.

A real solid sweep isn't available within Fusion 360.

This is available within Inventor.

If my post answers your question Please use Accept as Solution & Kudos This helps everyone find answers more quickly!

Re: Sweep with cube instead of sketch (or workaround)

davebYYPCU — Fri, 17 Apr 2020 11:24:53 GMT

Like this?

Re: Sweep with cube instead of sketch (or workaround)

TheCADWhisperer — Fri, 17 Apr 2020 11:37:16 GMT

Do you have a picture of something similar that already exists in the real world?

Re: Sweep with cube instead of sketch (or workaround)

Anonymous — Fri, 17 Apr 2020 11:38:27 GMT

Hi @Marco.Takx , not quite, I would most definitely like to have the sweeps combined as if one cube was used to perform the sweep.

Re: Sweep with cube instead of sketch (or workaround)

Anonymous — Fri, 17 Apr 2020 11:41:27 GMT

Hi @davebYYPCU , yes, something like that. The idea is that I will subtract that object from a box so that a die (singular of "dice") can slide through it, twisting in a tunnel.

Re: Sweep with cube instead of sketch (or workaround)

davebYYPCU — Fri, 17 Apr 2020 11:44:23 GMT

Then it is a normal Sweep, with profile and clearance to allow that.

Re: Sweep with cube instead of sketch (or workaround)

Anonymous — Fri, 17 Apr 2020 11:51:02 GMT

@TheCADWhisperer It's really close, but as mentioned in another reply, the intention is to invert it, so that the shape is a void, so that when 3D printed, I could have a die (singular of "dice") slide down it, twisting 45 degrees. With a tight tolerance, it would get stuck at the ends

Re: Sweep with cube instead of sketch (or workaround)

TheCADWhisperer — Fri, 17 Apr 2020 11:54:19 GMT

Are you a student?

If so, you can use Autodesk Inventor Professional for this Sweep (cut) Solid.

Re: Sweep with cube instead of sketch (or workaround)

Anonymous — Fri, 17 Apr 2020 12:15:12 GMT

Thanks @davebYYPCU , although it's not a perfect solution, it's the best option it seems given the available tools in Fusion 360

Re: Sweep with cube instead of sketch (or workaround)

TheCADWhisperer — Fri, 17 Apr 2020 12:24:13 GMT

Attach your "solution" here.

Re: Sweep with cube instead of sketch (or workaround)

chrisplyler — Fri, 17 Apr 2020 13:02:41 GMT

From your animation, I believe you seek to have one of the edges remain colinear to itself throughout the length of travel. If that is correct, I believe this is the general shape of the geometry you seek.

I did it with a convoluted process of sketches (including capturing the edges of a couple of coils) and surface sweeps.

Re: Sweep with cube instead of sketch (or workaround)

Anonymous — Fri, 17 Apr 2020 19:33:30 GMT

Hi @chrisplyler , the axis the cube is translated along and rotated about is perpendicular to two of the faces, and parallel to the other 4 faces, so I cannot perform a sweep with them

Re: Sweep with cube instead of sketch (or workaround)

MRWakefield — Fri, 17 Apr 2020 22:44:09 GMT

Is this the kind of thing you're looking for? I've assumed a 20mm cube and given it 0.5mm clearance all round. You'll find I've also modelled the 20mm cube half way down the tunnel.

I'm sure someone else could come up with something more elegant but I think this will do what you want.

I hope this helps.

Re: Sweep with cube instead of sketch (or workaround)

davebYYPCU — Fri, 17 Apr 2020 22:53:39 GMT

Then the animation has sent us down the wrong track.

This will be solved when we get some dimensions.

We know the 45 degree bit,

What size is the dice?

What size is the axis length of material for the twisted tube?

Re: Sweep with cube instead of sketch (or workaround)

davebYYPCU — Fri, 17 Apr 2020 23:02:23 GMT

Adding sufficient clearance to the profile, it’s a simple sweep, I was picturing your example with just more wriggle room, no need for the double sweep.

Length of the tube drives how much clearance.