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05-03-2011, 04:10 PM
| #1 |
| ~THE SCALE SHOP~ Join Date: Apr 2006 Location: KILLEEN TX
Posts: 10,056
|  you Machinists can probly appreciate this...
new prop for the new boat an Acme 1433. 14" diameter CNCed from solid Nibral    |
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05-03-2011, 04:12 PM
| #2 |
| I wanna be Dave Join Date: Sep 2005 Location: Houston, TX
Posts: 16,952
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Very cool!
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05-03-2011, 04:47 PM
| #3 |
| RCC Addict Join Date: May 2007 Location: pasadena, tx
Posts: 1,108
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its a little rough.  |
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05-03-2011, 04:51 PM
| #4 |
| R.I.P. Chip   Join Date: Jan 2004 Location: The Crawler State
Posts: 13,938
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2 questions. 1. Why would you need to buy a prop for a brand new boat? 2. Don't all those machine marks cause turbulent water? |
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05-03-2011, 04:53 PM
| #5 |
| I wanna be Dave Join Date: May 2009 Location: Tehachapi,Ca
Posts: 2,334
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If all else fails, its a ceiling fan
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05-03-2011, 05:16 PM
| #6 | |
| Suck it up!  Join Date: Mar 2008 Location: Arkansas
Posts: 11,652
| Quote:
Find someone that races rc boats. Chances are very good that they have a small fortune wrapped up in different props. | |
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05-03-2011, 05:33 PM
| #7 | |
| ~THE SCALE SHOP~ Join Date: Apr 2006 Location: KILLEEN TX
Posts: 10,056
| Quote:
2. not at all. RC and full size race boats, actually sand the wet parts of there hulls to reduce surface friction. Dude: amen. my father raced rc gas offshore boats, huge collection of props. and most had 2-4 hours of hand shaping and moding to each one. Last edited by STANG KILLA SS; 05-03-2011 at 05:36 PM. | |
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05-03-2011, 05:40 PM
| #8 |
| Rock Stacker Join Date: Jan 2010 Location: NEPA
Posts: 51
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Looks really good  |
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05-03-2011, 05:43 PM
| #9 |
| Rock Crawler Join Date: Oct 2009 Location: San Diego
Posts: 599
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So purty!
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05-03-2011, 06:15 PM
| #10 | |
| Rock Stacker Join Date: Dec 2009 Location: Clemson
Posts: 67
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Beautiful propeller! That thing must have cost a small fortune. | |
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05-03-2011, 06:21 PM
| #11 | |
| ~THE SCALE SHOP~ Join Date: Apr 2006 Location: KILLEEN TX
Posts: 10,056
| Quote:
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05-05-2011, 01:46 AM
| #12 |
| Quarry Creeper Join Date: Jan 2009 Location: Estonia
Posts: 317
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Hey stang. Was this prop machined in a mill or a multi axle lathe? Just curious.  |
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05-05-2011, 10:15 AM
| #13 |
| Sometimes, I make things.   Join Date: May 2009 Location: Mt. Upton
Posts: 1,043
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I like it, looks expensive, I am guessing well over $1500 (I know nothing about boats, but do know about machining) I would imagine the rough surface is done for a reason, if water sticks to the prop then it would make it less abrasive in the water as it would be fluid on fluid contact, same w/ the hull of a boat I am guessing, it is probably sanded in the direction of the movement of it ie, length wise. Also the spiraling on the prop itself also adds to its propulsion I bet, cool stuff. I am not educated on boats, but I hear boat guys talk a lot about props, its like having good drag tires on a drag car, if it isn't hooking up, its not going anywhere. Cool stuff, I love things made out of metal, especially if they have an engine/motor involved. |
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05-05-2011, 12:22 PM
| #14 |
| ~THE SCALE SHOP~ Join Date: Apr 2006 Location: KILLEEN TX
Posts: 10,056
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we lost a whole page of discussion on this in the restore. :( recap: the website just says CNC but doesnt say how or show what kind of machine they were cut on. yes we discussed the grooves as well. yep for reducing surface tension, as well as production times. |
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05-05-2011, 05:59 PM
| #15 |
| I wanna be Dave Join Date: May 2008 Location: Baltimore
Posts: 4,442
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All I know is, the new prop is as sexy as the one in your avatar! |
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05-05-2011, 10:22 PM
| #16 |
| RcBros Hobbies   Join Date: Nov 2005 Location: Oregon
Posts: 4,646
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I'd say more then $1500.. I forget the numbers, by my rich buddies with rich boats talk about props like we talk about axles. The numbers are mind boggling!
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05-06-2011, 12:01 AM
| #17 |
| RCC Addict Join Date: Jun 2007 Location: San Antonio, Tx
Posts: 1,093
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Cool for sure!
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05-06-2011, 12:07 AM
| #18 |
| RCC Addict Join Date: Oct 2009 Location: San Francisco
Posts: 1,927
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WOW! that is insane! I am guessing it was done in at least 2-ops because of the changing direction of the mill lines... http://www.youtube.com/watch?v=kddPuLSaOjQ is maybe how they did it... Does it need separate balancing or the part itself is just so precise, it is "ok" as is? |
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05-06-2011, 09:09 AM
| #19 |
| ~THE SCALE SHOP~ Join Date: Apr 2006 Location: KILLEEN TX
Posts: 10,056
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prop was $500. cheap for what you get, but still expensive in my book. there mass produced so im sure thats how they keep the costs down. plus props is all they produce. they dont do a bit of everything like most machine shops. yes they do balance each prop.. they simply take a grinder to the back of one or two of the blades on the heavy side. but its so pricise that its not much. mine has one blade that had just barely been ground on the back side. about a 3" circle that they ground off the grooves. |
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05-06-2011, 09:43 AM
| #20 |
| I wanna be Dave Join Date: Oct 2007 Location: Scumrise, Flooriduh
Posts: 5,181
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$500 is not bad for what you have there! Being mass produced is certainly what keeps the price well under 4 digits. I'm looking forward to hearing your opinions once mounted and have some water time on it. |
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