[PSUBS-MAILIST] Prop guard

[T Novak via Personal_Submersibles]

Good points, Ian.

The type of plastic is really important. We have found that acetone works really well in bonding printed layers, resulting in a much stronger printed structure.  They may be doing this, or we could do it ourselves upon receipt.  The very slow speeds that we cruise at may mean that this unit will be of sufficient strength for our purposes.  Personally, I think that the price just seems too low to be confident on its value.  But, it's probably better than no prop guard at all.

Tim

 

From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of irox via Personal_Submersibles
Sent: Tuesday, July 7, 2020 11:50 AM
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>; 'Personal Submersibles General Discussion' <personal_submersibles at psubs.org>
Subject: Re: [PSUBS-MAILIST] Prop guard

 

 

I see it's 3D printed, although it doesn't identify what the plastic is, or how it is reinforced.  For me this raises a couple

of concerns, 1) 3D prints are not super strong, and something hitting the prop-guard may cause it to break and foul the

prop, 2) the layer manufacturing process used is not going to be water tight, allowing water into voids in the prop-guard,

which will likely shorten the time-to-fail.

 

The "reinforced" bit is interesting, I wonder if there is a metal ring buried in the guard, or if there are using plastic with

something added/embedded to provided reinforcement (e.g. short strands of glass).

 

I would be possible to design something similar which was parametric, and could be customized for each trolling motor

(rather than two sizes fit all) before being printed out.

 

Cheers,

  Ian.

 

-----Original Message----- 
From: T Novak via Personal_Submersibles 
Sent: Jul 7, 2020 10:55 AM 
To: 'Personal Submersibles General Discussion' 
Subject: Re: [PSUBS-MAILIST] Prop guard 




This prop guard certainly looks interesting. particularly the introductory price. It would not be difficult to modify the attachment design to something slicker, or use the ring as the core for a kort nozzle.

Thanks, James.

Tim

 

From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of James Frankland via Personal_Submersibles
Sent: Tuesday, July 7, 2020 1:04 AM
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org <mailto:personal_submersibles at psubs.org> >
Subject: [PSUBS-MAILIST] Prop guard

 

Not sure of the quality judging by the "Engrish".

 

https://propgad.com/  

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