Flat pattern of a screw conveyor type flight?
Flat pattern of a screw conveyor type flight?
(OP)
Hi,
I am trying to figure out how to make a flat pattern of a screw conveyor type flight. I can model the shape exactly using a Sweep with a profile and a Helix, but I can't figure out how to make the flat pattern.
Does anyone have any suggestions?
Thanks
I am trying to figure out how to make a flat pattern of a screw conveyor type flight. I can model the shape exactly using a Sweep with a profile and a Helix, but I can't figure out how to make the flat pattern.
Does anyone have any suggestions?
Thanks






RE: Flat pattern of a screw conveyor type flight?
RE: Flat pattern of a screw conveyor type flight?
Helpful SW websites FAQ559-520
How to get answers to your SW questions FAQ559-1091
RE: Flat pattern of a screw conveyor type flight?
Thanks
RE: Flat pattern of a screw conveyor type flight?
That is why SW does not allow include a sweep function within the Sheet Metal module.
Helpful SW websites FAQ559-520
How to get answers to your SW questions FAQ559-1091
RE: Flat pattern of a screw conveyor type flight?
Is there an other way (other then using a sweep) to generate this shape, that would be able to create a flat pattern?
RE: Flat pattern of a screw conveyor type flight?
http://search.sheetmetalworld.com/tutorials.cfm
I have worked at 2 companies that fabricated chutes; one created smooth chutes, and the other created stepped chutes.
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You will have he_ _ trying to find formulas for chutes, even on sheet metal fabricator forums because it is a closely-guarded secret (believe me, I have tried for hours and hours trying to get answers on this subject).
I will say that the company who made the smooth chutes had an AutoLISP routine for AutoCAD to make the flat patterns by simply entering fields in a dialog box (yeah, I know, I know, tell me again how much ACAD sucks).
I will say that the chutes can be created using trig, and it is not too far from the cone flat layout. However, Solidworks cannot flatten a helical chute.
Flores
SW06 SP1.0
RE: Flat pattern of a screw conveyor type flight?
Regards,
Scott Baugh, CSWP
www.scottjbaugh.com
FAQ731-376
RE: Flat pattern of a screw conveyor type flight?
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Flores
SW06 SP1.0
RE: Flat pattern of a screw conveyor type flight?
The chutes are also very different to the flights (or auger) that mschro wants. Imagine a 1/4" x 3" bar being wrapped around a shaft the "hard" way (on edge), the outer edge has to be stretched & the material thinned. Thats what I'm saying SW cannot handle.
Helpful SW websites FAQ559-520
How to get answers to your SW questions FAQ559-1091
RE: Flat pattern of a screw conveyor type flight?
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The chutes shown are totally different to what I was picturing. Were they made from one piece?
Helpful SW websites FAQ559-520
How to get answers to your SW questions FAQ559-1091
RE: Flat pattern of a screw conveyor type flight?
http://img
but the first and last segment will vary, depending on whether the entrance and exit face north, south, east or west. They are welded together, ground smooth, then ran through a modified (tapered) slip roll. The machine is patented, but I guess I can say how it was done. After being fed through the roll, any cracks are welded, then polished smooth.
They also had an AutoLISP routine to layout the vertical edges of the chute. Actually, the formulas could be entered into EXCEL to produce a point cloud, or X-Y points to enter into SW to create the flat pattern. SW cannot flatten the swept shapes, but you can create a separate part that is the flat pattern for laser or waterjet though.
Flores
SW06 SP1.0