DIY GRCS

[Paddy1000111]

9 hours ago, billpierce said:

9 hours ago, steve@black said:

I've got a grcs with a damaged winch possibly for sale , from what I can make out it is only a few broken bits of plastic in the drum , it's been replaced wit a complete unit  and was keeping a spare incase of a technical takedown and looking at repairing the drum  but will never in reality get round to it . What would a back plate bollard and damaged winch be worth to anyone ? 

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Damn you. 

[Ledburyjosh]

Progress of another DIY winch/bollard.

 

Based on a Harken 40st.

8mm s275 back plate.

 

Fairleads yet to be added.

 

And it will have a frame on the rear made of 30x30x6mm angle which will bolted to it. To cut it in the tree or to add some blocks to help prevent damage to the tree.

 

This size is rated for 800kg. Although the complete system, ropes/pulled etc, I'll be setting it up on will be a 500kg (590kg to be precise) WLL with a 5:1 safety ratio.

 

Edited October 14, 2023 by Ledburyjosh

[whitetrash]

I remember using a homemade grcs in NZ where regs aren't as tight.

No loler

Its a bummer about the red tape culture in the UK.

We're becoming like America where everyones obsessed with trying to make money by suing each other and passing on responsibility for their actions.

[Ledburyjosh]

LOLER eh... not fussed with it for this.

I'm confident it won't break.. famous last words.

 

It's a Winch rated for 800kg, mounted to a 8mm piece of steel, with the recommended strength Bolts at the correct orientation, held to the tree with 5T rated ratchets. All angles of the rope entry etc will be correct.

There isn't much of that combination which is left to guessing..

Expect the steel I've not worked out the exact force it would hold based on the volume of steel. I just thought that'll be strong enough.

 

I will do a few tests for my self nothing more than actually lifting 500kg a few times and then checking the device over.

 

 

 

[Ledburyjosh]

[Tikay Musiiwa]

Absolutely, you can design your own GRCS if you've got the know-how and a certified welder on board. Just make sure your design is safe and up to scratch.

[mtt.tr]

Mine was used to pull a back leaner few weeks back.

 

 

It's had some reasonable bits rigged from it, I have got a second one to build up which will allow better attachment in this configuration and also better fairleads  for the in feed side the out feed I like as I can tie it off 

[lviv791]

On 12/11/2020 at 10:57, mtt.tr said:

Heres mine was using it to raise timber away from a clay tile roof, made the job far too easy groundy loved how easy it was for everyone involved. 

Only had one ratchet on as what was lifted wasnt huge and no negative rigging 

 

 

He easily winched and tailed the rope, i have designed a mk2 which when i build i will convert the winch to self tailing. And when im happy with my pair I'll get them shot blasted and galvanised 

 

 

I do also have a company in mind to load test it all 

 

Nice thing

[steve@black]

I still have a complete one with a damaged winch which could be repaired with the right pair of hands . Strictly collection only though . Devon?Somerset border 

[lviv791]

Could I receive it and try to repair ?:)