Modification to Props 2nd Project

Contest Ended, Winner(s) have been selected.
Description:
to incorporate some radius requirements at the trailing edge of props, to take measurement of height and angle before and after incorporation. To supply 6 drawings and measurements in iges format.
Wants:
looking for smoothness of drawings and gradual gradient.
Software:
  1. SolidWorks

Entries

1st Winner
#8 7016-CV Revision 1 by tsalpha
7016-CV prop, with 1.4mm cup and 10.5 radius.
more
2013-06-15 17:55:16
#2 Data Sheet for 7016 Props by tsalpha
Microsft Excel data for 7016 props.
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2013-06-15 17:38:44
#3 7016-A Revision 1 by tsalpha
7016-A prop, with .7mm cup and 5.25 radius.
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2013-06-15 17:42:20
#4 7016-AV Revision 1 by tsalpha
7016-AV prop, with .7mm cup and 5.25 radius.
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2013-06-15 17:44:57
#5 7016-B Revision 1 by tsalpha
7016-B prop, with 1.05mm cup and 7.875 radius.
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2013-06-15 17:47:19
#6 7016-BV Revision 1 by tsalpha
7016-BV prop, with 1.05mm cup and 7.875 radius.
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2013-06-15 17:49:21
#7 7016-C Revision 1 by tsalpha
7016-C prop, with 1.4mm cup and 10.5 radius.
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2013-06-15 17:52:49
#1 7512-A & 7512-AV Props by tsalpha
These are the same as the first project. 7016 to be submitted if these modifications are correct.
more
2013-06-11 03:54:04

Discussion

tsalpha

Designer

Sat, 15 Jun 2013 17:59:24 +0000
That should be it. I have submitted all the files. Please let me know if there are any issues. Thank You.
Thu, 13 Jun 2013 12:15:56 +0000
We know the hub fillets are for machineability but would be a LOT easier to modify the props if you could provide the 3D model without the fillets.

Titanium

Buyer

Tue, 11 Jun 2013 13:39:44 +0000
Pls submit your drawings and measurement when ready.

Titanium

Buyer

Tue, 11 Jun 2013 13:18:53 +0000
The trailing edge should be the original thickness. Let me explain the rational - marine propellers as use by powerboat - owners send their bronze props to be cupped by the prop shop specialist. They will use an anvil ( or pipe ) and hammer to form the cupping at the trailing edge - just like swimming if your cup your hands you can pull better. So the width of blade from leading to trailing should be shorter due to the curvature and the thickness of trailing edge should remain the same. The trailing edge towards the hubs need to be thicker for strength or the blades will break off. Hub fillets is for machineability.
I have a miniature super charger for hobby engine coming - might be your cup of tea. 2 stage single volute ?

tsalpha

Designer

Tue, 11 Jun 2013 12:18:24 +0000
It would be nice to have the original prop vane surface without the tapered addition on the trailing edge. Also without the hub fillets. There are a couple of items I'd like to discuss before doing additional changes, e.g. there is no information on how thick the trailing edge should be. Original prop is getting thicker towards the hub, I made my trailing edge the same thickness as the leading edge, .2mm.

Titanium

Buyer

Tue, 11 Jun 2013 07:14:18 +0000
ok will run thru your first project and let you know if first submission is acceptable

tsalpha

Designer

Tue, 11 Jun 2013 03:56:38 +0000
This is the same model as the first project. If you accept this file, I will submit all versions of 7016, after original modifications are approved. I don't want to spend too much time creating parts if this is not exactly what you are looking for.

Titanium

Buyer

Sun, 28 Apr 2013 04:01:32 +0000
Revised H1 H2 Angle file uploaded. Disregard previous file.

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