[SML] Quiet solenoid?

[Jon Lagerquist]

We mill a "U" shaped block out of UHMW with holes for mounting, drive 
cable guide, and pins. We run a continuous 3/32" cable from the pull 
source, a 3" stroke cylinder in most cases through the brackets to a 
bungee or spring a the far end. When needed it is easy to put a sheave 
in the system to turn corners. We bend pins from hanger wire and put a 
split ring and a 12" (generally) piece of cable on them. The tail gets 
secured to the drive cable with a 1/4" shaft collar. This makes it 
simple to set the pins, retract the cylinder, put the end of the pin 
against the block and secure. The split ring goes over the drive cable 
to keep pins from hanging down. The 12" cable give you plenty of 
flexibility to work on one point without affecting the others. Over the 
years it has proven to be a very flexible and reliable system.

Jon

On 7/21/2023 1:22 PM, Ford Sellers via Stagecraft wrote:
> They are super useful on a boat, and on a stage!
> West marine has rated hardware at about twice the cost.
> Lewmar and Ronstan's rated swivel shackles are similar in price to west marine, or you can pay about 5x that cost (10x the original ebay prices) for one from Harken... but it sure will be nice.
> 
> -Ford
> 
> -----Original Message-----
> From: Stagecraft <stagecraft-bounces at theatrical.net> On Behalf Of Jon Ares via Stagecraft
> Sent: Friday, July 21, 2023 1:47 PM
> To: Stagecraft Mailing List <stagecraft at theatrical.net>
> Cc: Jon Ares <jonares at arescreative.com>
> Subject: Re: [SML] Quiet solenoid?
> 
> These are snazzy. I'm keeping this in mind for future needs for sure.
> 
>   - Jon
> 
> On Thu, Jul 20, 2023 at 2:06 PM Greg Bierly via Stagecraft <stagecraft at theatrical.net> wrote:
>>
>> I have always wanted to work on a home built kabuki drop system like this.  I have never been able to find a good solenoid but have seen people use quick release rigging hooks to do the actual holding of the drop and use a solenoid or pneumatic cylinder to pull the pin.  (See below). I have always resorted to home made manual pin release drops out of a c-clamp, piece of plywood or steel city, some eye screws or bolts and pinwire attached to tie line.  I built a set of these 20 years ago and have been using them ever since.
>>
>> https://urldefense.com/v3/__https://www.amazon.com/Shackle-Release-Bra
>> celet-Sailboat-INCH-2PCS/dp/B09SF2MDP7/ref=sr_1_5?crid=2XBM9Z1I6UNR8&k
>> eywords=sailing*quick*release&qid=1689886531&sprefix=sailing*quick*rel
>> ease*2Caps*2C487&sr=8-5__;KysrKyUl!!J_x18tFw!MAhNHn8hag8dT6wnYebPHoD2z
>> Rk2BWafLI30dNUzEgcxrlAXOfCofE-4SOt6UnushgSxhOJ_v_rWOPndxYWzmhFd3h7M0Q$
>>
>> Greg Bierly
> 
> --
> Jon Ares
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> 
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-- 
Jon Lagerquist
--
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