Cool!! What about k_factor?

Dear all, good evening. I'm trying to model the corner fo a Sheet Metal panel and I would like to obtain a semispherical corner. I made a lot of trials, using also commands from other WB (part, part design,...). At the end I was able to create the geometry described in the file attached (I used sufa...

@carlopav grazie per l'indicazione, proverò a chiedere anche nel toppic dedicato @renatorivo diciamo che non volevo ottenere proprio una sfera, ma una sfera aprossimata (da produrre con piegatura). L'idea iniziale era quella di allungare i raggi delle pieghe e modellarli (tagliarli su misura) per ot...

Buona sera a tutto il gruppo. Sto cercando di modellare i raggi di piega in ambiente sheet metal, per ottenere uno spigolo a "sfera". Ho fatto vari tentativi cercando di usare anche i comandi degli altri ambienti. Alla fine sono riuscito ad ottenere una geometria simile a quella che avevo ...

Look at Page 7, picture 8.

I think that dipend on the definition of Kf. In "my" formula Is defined as the ratio between neutral axes position taken from internal bend (t) and tickness: Kf=t/T. I have found this definition in the file attached (i'm sorry It is in italian language). In this file neutral factor Is indi...

Dear chrisb, thank you for your reply.
Yes you are right!!!
Sorry for my big mistake

Sorry there is a mistak in the formula.
The correct one is:

L1+L2+(Ri+Kf*T)*pi/4=98+98+(1+0,5*1)*pi/4=197,178mm
where L1 and L2 are the lenght of the straight plates, T=thikness, Kf=neutral factor, pi=3,14..., Ri=internal bend radius

Hello, I'm making some tests with the module sheet metal. I made a simple bend with this parameters: - sheet metal thickness= 1mm - internal bend radius= 1mm - bend configuration: 90° bend with Kfactor=0,5 other dimension are summarized on picture and FC file attached. When I use the unfold command,...

Dear all. Hello and thank you for developing freeCAD every day for us. I'm Mechanical Engineer and I use FreeCAD at home for some small projects. Sometimes I need to make parts in bended sheet metal, so I use sheet metal workbench. I have a problem: every time that I make a bend, I have to change in...