Blend with tangency - simple solution?
Blend with tangency - simple solution?
(OP)
Hello,
I've been using Wildfire 3 for about a year now (5 years of Solidworks before that) and I'm still regularly having problems creating the simplest of geometry, exactly as I intend it, without going through an elaborate sequence of steps.
I have attached a couple of parts to this post. One shows the geometry that I would like to create and the other shows the sketches that I would like to be able to use (and should be able to fully define!)this geometry, using some sort of blend.
As can be seen from the required shape geometry (front or right view), I would like a tangent transition from a straight sided box up to the edge of the larger sketched square.
A regular, smooth, parallel blend between these three sketches creates a tangent transition, but the lower two sketches don't create a straight sided box.
Should I create an extrude first for this box and then some other tool to create the curved part?
Do I need guide curves? How many? Where?
Do I need to work with surfaces and have to knit these together to make a solid part? I have no experience of surfaces whatsoever and this seems a bit elaborate for such a simple shape?
This is really a simplified example of a more complicated piece of geometry that I'm trying to build, so I'm not looking for an answer saying - you managed to build the geometry with an extrude and a pattern of cuts - why do you need to build it as a blend - as I definitely cant use extrudes and cuts to make my shape.
Many thanks in advance for any solution/guidance.
I've been using Wildfire 3 for about a year now (5 years of Solidworks before that) and I'm still regularly having problems creating the simplest of geometry, exactly as I intend it, without going through an elaborate sequence of steps.
I have attached a couple of parts to this post. One shows the geometry that I would like to create and the other shows the sketches that I would like to be able to use (and should be able to fully define!)this geometry, using some sort of blend.
As can be seen from the required shape geometry (front or right view), I would like a tangent transition from a straight sided box up to the edge of the larger sketched square.
A regular, smooth, parallel blend between these three sketches creates a tangent transition, but the lower two sketches don't create a straight sided box.
Should I create an extrude first for this box and then some other tool to create the curved part?
Do I need guide curves? How many? Where?
Do I need to work with surfaces and have to knit these together to make a solid part? I have no experience of surfaces whatsoever and this seems a bit elaborate for such a simple shape?
This is really a simplified example of a more complicated piece of geometry that I'm trying to build, so I'm not looking for an answer saying - you managed to build the geometry with an extrude and a pattern of cuts - why do you need to build it as a blend - as I definitely cant use extrudes and cuts to make my shape.
Many thanks in advance for any solution/guidance.





RE: Blend with tangency - simple solution?
A condition of a VSS (variable section vs constant section under options) is for the guide sketches to be tangent therefore also satisfying your requirement.
Let me know if you need more help.
Cheers!
RE: Blend with tangency - simple solution?
See attached. There are a number of ways to do it, but here is simplest
Essentially, create 2 blends rather than 1 where:
1st blend is from sq1 to sq2
2nd blend from sq2 to sq3
on 2nd blend apply tangency
www.edgepd.co.uk
RE: Blend with tangency - simple solution?
Thanks again,
Phim
RE: Blend with tangency - simple solution?
I usually only use VSS, Swept Blend or Boundary Blend as they can do a lot of the what the legacy functions do but with more options/control.
There's a lot of good info to look through on the MCAD forums, http://www