Search found 17 matches
- Fri Dec 20, 2019 5:54 am
- Forum: Help on using FreeCAD
- Topic: Sheet Metal Workbench
- Replies: 675
- Views: 234525
Re: Sheet Metal Workbench
Cool!! What about k_factor?
- Thu Dec 19, 2019 5:58 pm
- Forum: Help on using FreeCAD
- Topic: Sheet Metal Workbench
- Replies: 675
- Views: 234525
Re: Sheet Metal Workbench
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...
- Thu Dec 19, 2019 5:40 pm
- Forum: Forum Italiano
- Topic: Modellazione raggi
- Replies: 3
- Views: 513
Re: Modellazione raggi
@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...
- Tue Dec 17, 2019 6:16 pm
- Forum: Forum Italiano
- Topic: Modellazione raggi
- Replies: 3
- Views: 513
Modellazione raggi
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 ...
- Thu Oct 17, 2019 8:16 pm
- Forum: Help on using FreeCAD
- Topic: [SOLVED] Wrong sheet metal unfold dimensions?
- Replies: 7
- Views: 1234
Re: [SOLVED] Wrong sheet metal unfold dimensions?
Look at Page 7, picture 8.
- Thu Oct 17, 2019 8:08 pm
- Forum: Help on using FreeCAD
- Topic: [SOLVED] Wrong sheet metal unfold dimensions?
- Replies: 7
- Views: 1234
Re: [SOLVED] Wrong sheet metal unfold dimensions?
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...
- Thu Oct 17, 2019 7:37 pm
- Forum: Help on using FreeCAD
- Topic: [SOLVED] Wrong sheet metal unfold dimensions?
- Replies: 7
- Views: 1234
Re: Wrong sheet metal unfold dimensions?
Dear chrisb, thank you for your reply.
Yes you are right!!!
Sorry for my big mistake
Yes you are right!!!
Sorry for my big mistake
- Thu Oct 17, 2019 6:23 pm
- Forum: Help on using FreeCAD
- Topic: [SOLVED] Wrong sheet metal unfold dimensions?
- Replies: 7
- Views: 1234
Re: Wrong sheet metal unfold dimensions?
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
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
- Thu Oct 17, 2019 4:41 pm
- Forum: Help on using FreeCAD
- Topic: [SOLVED] Wrong sheet metal unfold dimensions?
- Replies: 7
- Views: 1234
[SOLVED] Wrong sheet metal unfold dimensions?
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,...
- Fri Mar 01, 2019 7:06 pm
- Forum: Open discussion
- Topic: SheetMetal Radius and Kfactor
- Replies: 1
- Views: 1303
SheetMetal Radius and Kfactor
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...