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Learning how to build Lotus Seven replicas...together!
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 Post subject: my doors
PostPosted: November 12, 2017, 8:44 pm 
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Joined: April 14, 2013, 11:44 pm
Posts: 34
Hi all just a way to capture the way i went about making my doors, mainly as I could not find a how to anywhere.... not saying this the way to do it, but its my way :-) Ideas stolen from Sailrite youtube and and Perry's roof build-- cheers thanks

first i was lucky enough to be able to borrow a door and copy it. So job one was make a paper template and make sure it still fits the door hole.
then cut some (excuse my modern measurement system) 20x3mm flat stock and make a frame. My hand held band saw made this easy. Then lay it all out on the paper and hot glue (mig) it together.
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and do this twice, not drivers and passenger sides at this stage

I then laid out some vinyl and cut out the door shape, two for each side, remembering that these have to mirror for each door, still not concerned if passenger or drivers side
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place double sided tape where the steel frame will sit and stick it down
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and then stick heaps of double sided tape on and around the frame, failure to do so will lead to frustratingly long session of unpicking black on black!!!!! as it all bunches up

then place the other vinyl side on top and line it up well, the tape has a bit of give in it so you can get it right.
once happy I took it to the 1949 singer and sewed around the outside edge using the frame edge as a guide.
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then around the inside edge, still using the frame as a guide, dont run the needle in to the steel though or you will be changing out and re treading with crap eyes like mine it aint fun
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I then cut a piece of clear plastic that fills the window (and forgot to take photos, as i was on a roll)
this was double sided taped on to the window spot, and cut a SMALL hole in the middle of the vinyl- not the window, NOW IS THE TIME TO THINK DRIVERS OR PASSENGERS!!! put the plastic on the inside of the door and sew in place as close to the steel frame as you can.
Then turn it over and cut out the window shape leaving about 25mm around the edge of the frame.
you will now have two layers of vinyl and a clear plastic window, trim the middle layer of vinyl right back and tuck the remaining top layer back under itself and sew around the edge to lock it all in.
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repeat and have two doors, one for each side of the car
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I still have to put binding around the outside edge, put a strap and snap connector for closing and find some lift off hinges.

thanks for watching
john
Rotorua
New Zealand


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 Post subject: Re: my doors
PostPosted: November 12, 2017, 10:09 pm 
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Joined: July 4, 2006, 5:40 pm
Posts: 1876
Location: Novato, CA
That looks great, but a lot of work. Do you have a roof?


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 Post subject: Re: my doors
PostPosted: November 12, 2017, 10:54 pm 
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Joined: April 14, 2013, 11:44 pm
Posts: 34
this is the training to do the roof :-0 first the seats like yours Nick and then the doors and then roof. Will have to gear down the sewing machine as I have a heavy foot on the clutch motor
BTW just over an hour to make the frames and the same to do the sewing per door


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 Post subject: Re: my doors
PostPosted: November 13, 2017, 4:09 am 
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Joined: March 19, 2011, 10:22 am
Posts: 983
Location: Holden, Alberta, Canada
Kudos John!
I look forward to seeing the doors installed.
Good job :cheers:

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 Post subject: Re: my doors
PostPosted: November 13, 2017, 10:50 am 
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Joined: July 17, 2008, 9:11 am
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Location: West Chicago,IL
Looing great! I can't wait to see them on the car. :cheers:

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 Post subject: Re: my doors
PostPosted: November 13, 2017, 11:30 am 
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Joined: October 24, 2008, 2:13 pm
Posts: 3194
Location: Carlsbad, California, USA
Nice work. Thanks for sharing this. I'm sure I can use this info later on.

Cheers,

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Damn! That front slip angle is way too large and the Ackerman is just a muddle.

Build Log: viewtopic.php?f=35&t=5886


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 Post subject: Re: my doors
PostPosted: November 13, 2017, 3:04 pm 
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Joined: April 14, 2013, 11:44 pm
Posts: 34
and here is a pic of the inside of the window, smaller pic size also
Image

I had a window of opportunity last night and put the straps on
Image
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once the doors are fitted I will install the snaps
was going to do the binding but my binding attachment has no screws to mount it, and they are some dinosaur thread, so I will get a tap out and modernize this also
cheers john


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 Post subject: Re: my doors
PostPosted: November 16, 2017, 12:09 am 
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Joined: April 14, 2013, 11:44 pm
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so I tried to add a bias binding but it looked like crap so I changed my mind and went for a vinyl binding. I cut some 40mm strips and sewed then in to one long piece that would go right round the border
this is stitched on and folded back over to seal the door.
Image
Image
Image
waiting for the hinges but it looks a bit like this
Image
Image


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 Post subject: Re: my doors
PostPosted: November 16, 2017, 8:59 am 
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Joined: September 22, 2005, 8:12 am
Posts: 1357
Location: 4AGE in S.E. Michigan
John
You may find that the typical Seven type hinge with a couple small pins will not support a heavy door made with a flat stock frame, if traveling on bumpy roads. I had to adapt a long larger dia hinge pin design. My hinge pin is 1/4" dia aluminum rod that slip thru a top and bottom bracket. I also went with a locking sliding horizontal pin at the rear of the door which help support the wt. The strap type retaining attachment works good on my lighter half doors.


Attachments:
Full door hinge 2.JPG
Full door hinge 2.JPG [ 252.64 KiB | Viewed 206 times ]
Full door hinge 1.JPG
Full door hinge 1.JPG [ 214.87 KiB | Viewed 206 times ]
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 Post subject: Re: my doors
PostPosted: November 16, 2017, 3:13 pm 
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Joined: June 5, 2016, 7:03 am
Posts: 121
Location: ontario
john
Rotorua
New Zealand[/quote]

Thanks John from down under,

Remarkable job. I wish I would have read about your doors a while ago before I embarked on a painful plywood and aluminium adventure (not over yet).
:cheers:


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 Post subject: Re: my doors
PostPosted: November 16, 2017, 3:35 pm 
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Joined: November 13, 2017, 7:35 pm
Posts: 26
Those look great! I just might have to steal the design idea when I get that far on mine. Cant wait to see the full enclosure when it gets done


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 Post subject: Re: my doors
PostPosted: November 27, 2017, 2:53 am 
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Joined: April 14, 2013, 11:44 pm
Posts: 34
my hinges arrived 50x75mm mild steel lift off. have to make a pair of them left handed though and then fit them this weekend
Image
Image


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