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  #311  
Old 01-01-2018, 09:39 AM
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Originally Posted by Steve Melton View Post
I went with a top-mount for my spools. It reduces stress on the filament into the extruded.

BTW: where do you source jumbo spools of filament?
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  #312  
Old 01-01-2018, 09:46 AM
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amazon has the large spools for some brands. the one in the photo = 5kg.

it's nice to be able to print a mount and get exactly what you want. don't need to buy from China anymore for these simple things and you don't have to wait for it to ship.... and it's less expensive. what's not to like?
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RV-9A, Tip-up, Superior O-320, roller lifters, 160HP, WW 200RV, dual impulse slick mags, oil pressure = 65 psi, EGT = 1300F, flight hours = 700+ for all

Simplicity is the art in design.

see Amanda Melton for www.rvplasticparts.com

Last edited by Steve Melton : 01-01-2018 at 09:50 AM.
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  #313  
Old 01-01-2018, 09:59 AM
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nice to be able to print a mount and get exactly what you want.
Agreed. I built my top mount from wood as it was faster than printing

Iím trying to standardize most of my projects on a single material but thatís not happening very well. Even with a heated enclosure, large ABS prints (at the extents of the TAZ6 build volume) with significant flat surfaces and walls are warping or cracking. Iím looking at HIPS for some prints and PLA for non-environmentally critical projects. I still like ABS when it matches the design parameters.
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  #314  
Old 01-01-2018, 11:37 AM
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Originally Posted by humptybump View Post
Agreed. I built my top mount from wood as it was faster than printing

Iím looking at HIPS for some prints and PLA for non-environmentally critical projects. I still like ABS when it matches the design parameters.
the large spool mount is PLA. I agree with you for the material selections.
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Steve Melton
Cincinnati, OH
RV-9A, Tip-up, Superior O-320, roller lifters, 160HP, WW 200RV, dual impulse slick mags, oil pressure = 65 psi, EGT = 1300F, flight hours = 700+ for all

Simplicity is the art in design.

see Amanda Melton for www.rvplasticparts.com
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  #315  
Old 01-02-2018, 10:17 PM
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Default shirt hanger mount

proto1 ready for install check. total weight = 0.15 lb







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Steve Melton
Cincinnati, OH
RV-9A, Tip-up, Superior O-320, roller lifters, 160HP, WW 200RV, dual impulse slick mags, oil pressure = 65 psi, EGT = 1300F, flight hours = 700+ for all

Simplicity is the art in design.

see Amanda Melton for www.rvplasticparts.com

Last edited by Steve Melton : 01-02-2018 at 10:56 PM.
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  #316  
Old 01-03-2018, 01:11 AM
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Quote:
Originally Posted by Steve Melton View Post
how to explain the deviation of the fairing to the right at flying speed?
Might be prop wash.

Holger
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  #317  
Old 01-03-2018, 02:08 PM
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I thought the vane would be mostly straight aft or slightly trailing edge to the left because of prop rotation. I was surprised that at lift off speed the trailing edge moved to right. It must be the prop but I don't understand the flow stream.
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Steve Melton
Cincinnati, OH
RV-9A, Tip-up, Superior O-320, roller lifters, 160HP, WW 200RV, dual impulse slick mags, oil pressure = 65 psi, EGT = 1300F, flight hours = 700+ for all

Simplicity is the art in design.

see Amanda Melton for www.rvplasticparts.com

Last edited by Steve Melton : 01-03-2018 at 02:11 PM.
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  #318  
Old 01-03-2018, 08:56 PM
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Of course, now that you know where the wind is blowing from, you could rotate the naked antenna to the right and reap the massive drag reduction.
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  #319  
Old 01-05-2018, 05:34 PM
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Default shirt hanger mount

perfect fit and secure. will not damage sheet metal since only one side has tang against a flat. I'm happy with it. Keeping cost and weight low with simple eyebolt and nut.



overload to maximum, springs back to original.

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Steve Melton
Cincinnati, OH
RV-9A, Tip-up, Superior O-320, roller lifters, 160HP, WW 200RV, dual impulse slick mags, oil pressure = 65 psi, EGT = 1300F, flight hours = 700+ for all

Simplicity is the art in design.

see Amanda Melton for www.rvplasticparts.com

Last edited by Steve Melton : 01-05-2018 at 05:45 PM.
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  #320  
Old 01-06-2018, 04:56 AM
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Quote:
Originally Posted by shadowbrush View Post
Of course, now that you know where the wind is blowing from, you could rotate the naked antenna to the right and reap the massive drag reduction.
Dan, I would have expected you to propose adding a micro servo drive motor with torque sensor feedback so the vane could auto trim.

Edited: (Oops, not “Dan”. I folded two threads ... almost as dangerous as crossing the streams.)
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Last edited by humptybump : 03-14-2018 at 07:29 AM.
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