Author Topic: Furrari build  (Read 192593 times)

Furrari

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Re: Furrari build
« Reply #570 on: October 09, 2016, 03:47:46 PM »
Pic 1). Offered up the centre support to a scrap bit of wing, just to se what it looked like.  And I didn't like it.  It looks unfinished.

Pic 2). So I designed, what I can only call a socket.

Pic 3). And printed it off.

Pic 4). The socket and upright.

Pic 5). The assembly placed back on the scrap bit of wing.  That's better.

« Last Edit: October 09, 2016, 04:01:28 PM by Furrari »
Not all problems can be solved with gaffer tape.  For those there is WD40.
Not even gaffer tape can fix stupid, but it can mask the sound.

If you can’t buy it or steal it you have to make it.

Dock Green

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Re: Furrari build
« Reply #571 on: October 09, 2016, 04:36:00 PM »
I agree,  much better.
We are all in the gutter, but some of us are looking at the stars.

Sir Percival

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Re: Furrari build
« Reply #572 on: October 09, 2016, 04:45:34 PM »
Yep, much smarter and more factory.
If Airfix plastic model planes are made exactly to scale, why don't they fly?

Furrari

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Re: Furrari build
« Reply #573 on: October 10, 2016, 01:09:52 PM »
Wing sections bonded together on one side against a piece of lath to give a more consistent curve.  In hindsight perhaps I should have done it this way to start with.  Hindsight is a wonderful thing.
Not all problems can be solved with gaffer tape.  For those there is WD40.
Not even gaffer tape can fix stupid, but it can mask the sound.

If you can’t buy it or steal it you have to make it.

Furrari

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Re: Furrari build
« Reply #574 on: October 10, 2016, 05:52:22 PM »
Well I've filled all the joints on both sides, and I don't like the way it feels.  It feels a bit light and flimsy to an old metal basher like me. 
The wing design has a hollow passageway right through from end to end so I will a 6mm hole into this channel on every other section and fill it with sikaflex.  No sikaflex in so some on order, that will slow me down for a couple of days. 
Who was it ( on another thread ) saying about planning ahead.
Not all problems can be solved with gaffer tape.  For those there is WD40.
Not even gaffer tape can fix stupid, but it can mask the sound.

If you can’t buy it or steal it you have to make it.

Furrari

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Re: Furrari build
« Reply #575 on: October 12, 2016, 01:43:03 PM »
Just a little job while I'm waiting for the  Sikaflex for the diffuser wing to arrive.
There is a gap between the fibreglass rear panel and the original Merc bumper bar.  I've lost my best snipe nose pliers down there and JJ lost his hearing aid down there.   I've tried to take a pic but it's matt black on matt black so you can't see it.

I've got some soft black rubber extrusion intended to be part of a front splitter with a self adhesive stip on one face.  Cut it to length and stuck it over the gap.

Just one pic of the end of the section.  The red bit on one edge is the adhesive strip.  Unfortunately it still can be seen when the extrusion is in place because it's mounted 180 degrees from its intended use.  I'll splash some black paint on it next time I've got it out.

JJ is safe now.
« Last Edit: October 12, 2016, 05:01:24 PM by Furrari »
Not all problems can be solved with gaffer tape.  For those there is WD40.
Not even gaffer tape can fix stupid, but it can mask the sound.

If you can’t buy it or steal it you have to make it.

seriph

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Re: Furrari build
« Reply #576 on: October 13, 2016, 07:51:48 AM »
Brilliant ... that's doing it like you mean it :)
Steve

wishing we could get cars like these legally registered downunder

Furrari

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Re: Furrari build
« Reply #577 on: October 13, 2016, 01:41:04 PM »
The sikaflex has arrived.  I changed my mind a bit on filling the wing.  I drilled holes in each section rather than just every other section.  Then a second row into the front chamber.  I pushed a couple of welding rods through each section for a bit of extra strength. ( note to self, if I do anything like this put the rods in as you build it not afterwards )

I've squirted the sikaflex into each section until it came out of the next one and so on for both chambers.

I can now see why this stuff is regarded as the automotive equivalent of baby poo.  What a mess, I even used three pairs of gloves to try and keep the stuff under control.

No pics as it looks just as it did, except it's covered in sikaflex.

I'll leave it to set for a couple of days before offering it up to start mounting it.
« Last Edit: October 13, 2016, 01:58:01 PM by Furrari »
Not all problems can be solved with gaffer tape.  For those there is WD40.
Not even gaffer tape can fix stupid, but it can mask the sound.

If you can’t buy it or steal it you have to make it.

Furrari

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Re: Furrari build
« Reply #578 on: October 15, 2016, 06:21:15 PM »
Offered up the new wing.  And didn't like it.

Decided to raise it 25mm and reduce the attack angle to 20 degrees.
If you cut an oval on an angle you get funny shapes so I drew and printed a jig thing to hold the supports at a constant angle. ( Picture 1 ).  Seems to work well ( pictures 2 )

Using the jig thing ensures that all the spacers are the same length and at the same angle.  The first time you use it it changes to a mitre block.

The third pic shows the wing roughly in place.  It looks a bit odd because the car is so nose down on the drive, on the road it looks a lot better.  Only the one centre support is in place so ignore the funny angle it's at.



« Last Edit: October 15, 2016, 08:53:34 PM by Furrari »
Not all problems can be solved with gaffer tape.  For those there is WD40.
Not even gaffer tape can fix stupid, but it can mask the sound.

If you can’t buy it or steal it you have to make it.

johnjames

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Re: Furrari build
« Reply #579 on: October 16, 2016, 09:19:28 PM »
Hi Mick I hope you're well,

If you go to channel DAVE HD on Wednesday at 8 PM. The programme is Jay Lenos garage, he will show you a car built on a 3D printer enjoy see you in November JJ
Drive it like you stole it

Furrari

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Re: Furrari build
« Reply #580 on: October 16, 2016, 10:11:52 PM »
JJ.  Not surprised.  The biggest custom built printers I know about are 4M x 4M x upto 100M long, but I don't know about prices.  Given the speed mine prints at I dread to think how long it would take to print a car.

See you November.
Not all problems can be solved with gaffer tape.  For those there is WD40.
Not even gaffer tape can fix stupid, but it can mask the sound.

If you can’t buy it or steal it you have to make it.

Furrari

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Re: Furrari build
« Reply #581 on: October 17, 2016, 01:30:32 PM »
Back to the supports again.  As I said, when I offered the wing up I didn't like it so I made a jig to help me cut the supports down.  Picture 1 is what I ended up with after gradually reducing the height and angle.
The metal basher in me said "right, stick a socket on the other end and some filler to blend all the bits together ".
Wait a minute, I've got a 3D CAD program and a 3D printer, let's see what we can do.  Picture 2 is the basic design and picture 3 is the computer rendering of it.  Pictures 4 & 5 are the finished product.

Again in hindsite it would have been nice to print the centre support straight onto the wing section but I didn't know how high it would finally be, and I don't want to start again.

Another 4 supports to print and tack weld onto the wing then design the outer supports.
Not all problems can be solved with gaffer tape.  For those there is WD40.
Not even gaffer tape can fix stupid, but it can mask the sound.

If you can’t buy it or steal it you have to make it.

Furrari

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Re: Furrari build
« Reply #582 on: October 24, 2016, 06:33:47 PM »
Not been able to work on the car for a week as I put my back out moving a carpet.  (The light blue one in the pics)

Back on it again.

Just a little bit of work.

1). The five supports tacked in place.

2). The wing held in place with tie wraps so I can start the design of the intermediate mountings.  As before the nose down attitude of the car on the drive exadurated the angle of the new wing.

I'm on the third or fourth prototype of the intermediate mounting and hope to finish the design tomorrow.
« Last Edit: October 24, 2016, 06:36:48 PM by Furrari »
Not all problems can be solved with gaffer tape.  For those there is WD40.
Not even gaffer tape can fix stupid, but it can mask the sound.

If you can’t buy it or steal it you have to make it.

Furrari

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Re: Furrari build
« Reply #583 on: October 29, 2016, 01:21:46 PM »
I'm on my third version of the intermediate mountings.  The first looked more or less like plastic angle iron and was rubbish.  The second was better but didn't look factory.

Version three looks a lot better and I'm in the process of printing them.  Not entirely happy with the design as I can't get fillets where I wanted them to smooth the design out so I suppose it's back to a bit of filler and wet/dry stuff.  Each print takes close on six hours and there are four of them but at least I can watch the Grand Prix while its printing.

Pic 1). The design of the right hand mountings.
Pic 2). The design ready to print showing the supports needed as you can't print an overhang of more than 45 degrees.

I'll show the prints when they're done.

I was hopping to show the wing prior to painting at Shapton Mallet next weekend but at this point I haven't even worked our the end supports yet, let Designed and printed.

Before anybody comments I know it would have been easier to print the other way up but this would have put the print over a area where the extrusion won't stick to the bed very well.
« Last Edit: October 30, 2016, 08:37:26 AM by Furrari »
Not all problems can be solved with gaffer tape.  For those there is WD40.
Not even gaffer tape can fix stupid, but it can mask the sound.

If you can’t buy it or steal it you have to make it.

Furrari

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Re: Furrari build
« Reply #584 on: October 30, 2016, 01:05:13 PM »
Left and right hand intermediate mounting tacked onto a scrap bit of wing.  The vertical strake of the existing wing will fit between them when it's all finished, but I hope you get the idea.  I've made the height of them so the horizontal part and its mounting flange continue the shape of the original wing.
« Last Edit: October 30, 2016, 01:08:10 PM by Furrari »
Not all problems can be solved with gaffer tape.  For those there is WD40.
Not even gaffer tape can fix stupid, but it can mask the sound.

If you can’t buy it or steal it you have to make it.