3D Modeling - CAD - Press Brake Operator question

So, the question I ask kind of falls into one (and most likely all) of the categories mentioned in the title.

What is the proper way for figuring the length of a leg, in relation to two bends, all while considering the thickness of an item and fitting it all within a pre-defined "overall" width?

Here's a pictured example -



For those wondering - I use Fusion 360 for my CAD work. I do a lot of modeling in 2D and 3D so it isn't new to me. And normally my "send it" mentality has gotten shit done each and every time.

In this particular case, I want and need the appropriate method for being able to toy with the angle and length of leg '1', all while respecting where leg '2' needs to begin.

Right now I can use the rough model shown here, but I want to toy with different angles and lengths in real-time on CAD.

For some reason, Fusion 360 (with reference lines I added on my sketch) gives me odd measurements in respect to my Z axis.

 

not from a modeling standpoint, but from a general fab standpoint:

https://www.thefabricator.com/thefa...s-y-factors-and-press-brake-bending-precision

 

I got a few items like this bookmarked; definitely useful in knowing your neutral axis/measuring etc

Kind of nerded out when I told myself I need to make a larger press

I just couldn't figure out a simpler method by use of CAD; maybe I'm just a dumbass and I keep overlooking something

 

Cant help you with Fuzion360 .... in Solidworks I just click the fancy "K-Factor" button and let the computer tell me what to cut

 

I should add to the above; the above model wouldn't be used on a press (even though I mentioned press brake operator). Was just kind of hoping to hear from one from an engineering standpoint

I would incorporate my own relief cuts for bending at the required angle and welding it closed; I just wanted an easier method of solving the length of each leg to give me a designated "space" between the top angle iron and the bottom (as an example)

Would make things much more efficient in cutting something out and bending as needed versus cutting multiple pieces out and welding each and every one together

 

https://sendcutsend.com/bending-calculator/

 

You can hand calculate the length of the flat pattern with those four bends. Using some of the guides found online like the link above. However, I would just trial and error the height of the flanges, then run the flat pattern function to get the pattern.

 

I'm not familiar with fusion 360 I use Solidworks and NX. Does your software have a basic sheet metal design function? You could run the model through SMD and get a flat pattern wit the appropriate lengths. As far as wanting a "live" model to play with X and Z lengths- make the angle or a leg length a function instead of fixed length, or you could control the model by having a hard constraint at a bottom corner of the lower leg and a planar constraint for the upper leg, then just drag it left and right.

 

This is old, I did it in separate pieces







If you see my initial post, that is sheet metal design shown there. It was just acting up in selecting the wrong plane to measure specific distances.

Not like I have a nice press anyway so it didn't make sense trying to do what I wanted as that would've given me a large bend radius.

 

In Fusion, if you look at @Kwikvette 's screenshot, there is a "Rule (Steel) in" section in the design tree. This is where you can right click into the options for K-factors, material selection, etc. and even override the normal sheet metal bending rules if you want to modify the bends.

Nice work on the design...BEEFY

 

I’m no help but do you ever watch this guy? I believe his CAD work is on the same program, builds cool stuff.. I just dream and watch YouTube though

https://youtube.com/playlist?list=PLMrLQ2KnHk278moWUTSnQ62D_7I30qJDX&feature=shared

 

Haven't seen that channel, but will definitely check it out. I'm just about finished building my own CNC plasma cutting table. JD's Garage version. You can imagine how distracted I am seeing all of the stuff on here to buy and or build, and I'm trying to hold back from totally modifying my truck now!

 

super cool, I too get way to many ideas around here! And yeah that guy builds Baja trucks and other cool toys. seems to be super knowledgeable in his programs of choice and shares a lot of info about it..