The 11th International Portafold & Ansfold Gathering (i.e. 2019)

Following the huge success of the 10th International Gathering we'll be at Retrofestival again. It's a massive show now and is popular with everyone.

It's held at the Newbury Showground, Priors Court, Hermitage, Thatcham, West Berkshire, RG18 9QZ; on the weekend of the 9th, 10th & 11th of August 2019.

Don't book with the organisers, just contact me to get your pitch saved.

Hydraulic brakes

Anything you've created that didn't come out of the factory.
knockdolian
Posts: 36
Joined: Wed, 01 Feb 2017, 8:43 pm
Location: Yeovil, Somerset

Re: Hydraulic brakes

Post by knockdolian » Tue, 04 Dec 2018, 8:13 pm

Well for anyone interested mini brake shoes are the same size as the Portafold ones
The hole in the mini back plate is 35mm, the hole in the Portafold back plate is 64mm. I used a 35mm hole saw to centralise the mini backplate on the pillar drill then cut the 64mm hole.. I pushed the back plate on to the stub axle and marked the mount holes from the back. You can only get to Three but that should be enough as the mini only has three.
I then fitted all the brake bits and it all looks sweet. Fitted the drum tightened the nut and backed it off about 1/8 to 1/4 of a turn and the drum spins freely. The hand brake will also work once I buy and fit quadrants. I’m doing this between jobs so there may not be any progress for some time. But the theory looks good
Attachments
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knockdolian
Posts: 36
Joined: Wed, 01 Feb 2017, 8:43 pm
Location: Yeovil, Somerset

Re: Hydraulic brakes

Post by knockdolian » Fri, 11 Jan 2019, 6:39 pm

For anyone following my slow progress I’m sorry. I’ve now finished all but the tidy up and tested it tonight. Seems to work well.
Mini parts fit after modifying the back plates and the hydraulic connector worked as it should. The hand brake works using a wire cable with a mini compensator and at the moment a length of m8 rod. Just need to secure all the hoses now and make sure the Portafold wheels don’t lock up before the trike wheels. Having an issue adding photos but I will soon.

knockdolian
Posts: 36
Joined: Wed, 01 Feb 2017, 8:43 pm
Location: Yeovil, Somerset

Re: Hydraulic brakes

Post by knockdolian » Fri, 11 Jan 2019, 10:36 pm

B2431E53-1CC3-4F30-A39D-A22FA6662EA3.jpeg
Back plate with mini parts
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No leak coupling
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Flexible hoses to allow suspension to work
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Attachments
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bigherb
Posts: 13
Joined: Sun, 08 Nov 2009, 7:04 am
Location: Biggin Hill, West Kent

Re: Hydraulic brakes

Post by bigherb » Sat, 16 Feb 2019, 6:49 pm

Just seen this, nice job, just one note the handbrake cable really should turn 90deg at the pivot point of the trailing arm (Mini's used a pivoting guide on the trailing arm) otherwise the hand brake cables could become lose/tight with the rise and fall of the suspension. You could have the scenario of applying the handbrake with a loaded trailer and when unloaded the brake would release.

knockdolian
Posts: 36
Joined: Wed, 01 Feb 2017, 8:43 pm
Location: Yeovil, Somerset

Re: Hydraulic brakes

Post by knockdolian » Sat, 16 Feb 2019, 6:55 pm

bigherb wrote:
Sat, 16 Feb 2019, 6:49 pm
Just seen this, nice job, just one note the handbrake cable really should turn 90deg at the pivot point of the trailing arm (Mini's used a pivoting guide on the trailing arm) otherwise the hand brake cables could become lose/tight with the rise and fall of the suspension. You could have the scenario of applying the handbrake with a loaded trailer and when unloaded the brake would release.
Fair point. The photos are plan A. Still working on it. Got other jobs on the go at the moment. But will keep updating. Thanks

knockdolian
Posts: 36
Joined: Wed, 01 Feb 2017, 8:43 pm
Location: Yeovil, Somerset

Re: Hydraulic brakes

Post by knockdolian » Mon, 22 Apr 2019, 4:49 pm

Having taken bigherbs point on board I’ve has a rethink ref the hand brake. They are upside down and the cables aren’t connected yet as I’m waiting for a second pulley. The 1” flat sits in the recess of the trailing arm and am M8 bolt secures it with a spacer in the original hole in the arm. I didn’t want to weld anything on the arm or axle so this looks like it will work. I’ll update when tested
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knockdolian
Posts: 36
Joined: Wed, 01 Feb 2017, 8:43 pm
Location: Yeovil, Somerset

Re: Hydraulic brakes

Post by knockdolian » Mon, 22 Apr 2019, 5:01 pm

This is the no spill hydraulic coupling. Very easy to connect and disconnect. My Trike weighs 750kg. Nearly twice that of a Reliant robin. This would work very well with smaller cars as well
Attachments
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Frothy Man
Posts: 6
Joined: Sat, 02 Jun 2012, 11:37 am
Location: Fareham, Hampshire

Re: Hydraulic brakes

Post by Frothy Man » Mon, 22 Apr 2019, 5:46 pm

Keep going it's looking great. Hope to catch up with you soon to see it in the 'metal'.

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bigherb
Posts: 13
Joined: Sun, 08 Nov 2009, 7:04 am
Location: Biggin Hill, West Kent

Re: Hydraulic brakes

Post by bigherb » Mon, 22 Apr 2019, 5:56 pm

Yep that's the idea. I would connect the cables now to the original compensator, saves a lot of extra work. You will also need a keeper around pulleys to stop the cables jumping off an L shaped bit of metal bolted to the pivot bolt would do.

knockdolian
Posts: 36
Joined: Wed, 01 Feb 2017, 8:43 pm
Location: Yeovil, Somerset

Re: Hydraulic brakes

Post by knockdolian » Mon, 22 Apr 2019, 6:02 pm

Yes, that’s the plan. I’ve cut the cable and have drilled a 4mm hole through an m8 bolt which will act as a clevis on the original compensator.
Thanks. Probably wouldn’t have thought about it had you not have pointed it out.

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