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 Post subject: Re: The Pamilcar
PostPosted: October 26, 2018, 6:57 am 
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Posts: 37
http://www.johnsonlevel.com/P/632/Digit ... atorandRul


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 Post subject: Re: The Pamilcar
PostPosted: November 27, 2018, 12:06 pm 
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Joined: August 12, 2012, 6:38 pm
Posts: 1937
Location: worcester county, Massachsetts
Whoa, its been a month since my last update. I do find it a whole lot easier to keep the updates fresh on FB...I know some have see a few of the pics below, there.

Anyway I'm not going to go into too much detail, I have every confidence you'll figure out what's going on. If not ask away, I'll clue you in.

Anyway, we continue the story on 10/31/18...

More notes, and maths

Attachment:
cameringo_20181031_184310.jpg


referencing LCA level to the chassis...

1...

Attachment:
cameringo_20181027_160610.jpg


2...

Attachment:
cameringo_20181027_160614.jpg


3...

Attachment:
cameringo_20181027_160638.jpg


Is everybody level and centered? Yes!

Attachment:
cameringo_20181027_161132.jpg


Plumb Bob line centered on rear axle. Rear axle ends measured within .063 of center plumb on chassis forward frame seen in pic just above. I call that straight.

Attachment:
cameringo_20181031_174112.jpg


then, equalizing LCA distance from rear axle CL...

Attachment:
cameringo_20181031_180111.jpg


rear LCA brackets tacked, 1x2x.083 top brace clamped...

Attachment:
cameringo_20181101_132239.jpg


...and fully welded with center brace. In the background the fully welded forward LCA brackets and top brace, connection to the chassis front frame.

Attachment:
cameringo_20181114_193011.jpg


Now that we're on EST (the next three pics are 11/14/18), its' too dark and cold out to cut steel on the old bench with the chop saw, so it's Ryobi Recip time. My mitre cut Kung Fu is STRONG. UCA mount cross tube in the vise.

Attachment:
cameringo_20181114_195602.jpg


Jag UCA pivot bar ready for cleanup.

Attachment:
cameringo_20181114_201357.jpg


UCA Pivot bar mount tubes, cut (I'd done that about 3 months ago, actually) marked for drilling, mocked up on the mitred cross tube

Attachment:
cameringo_20181114_205144.jpg


...and that's the 12 pic limit

TO BE CONTINUED...


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_________________
The B-3 build log: http://www.locostusa.com/forums/viewtopic.php?f=36&t=13941 unfortunately, all the pictures were lost in the massive server crash

The beginnings of the Jag Special,
https://www.locostusa.com/forums/viewtopic.php?f=36&t=19012
Again, all pictures were lost.


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 Post subject: Re: The Pamilcar
PostPosted: November 27, 2018, 12:54 pm 
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Posts: 1937
Location: worcester county, Massachsetts
In our previous episode, stuff happened, as you may have read. we return to our story on November 17th, 2018...

Anyway, sometimes tools have to be massaged...

Attachment:
cameringo_20181117_134629.jpg


...so that we can have FUN WITH LASERS!!!!!

super nifty laser fixture modified for easier clamping.

Attachment:
cameringo_20181117_134725.jpg


...and, returning to actual fabrication. UCA pivot mount tube bored for crush tubes

1...

Attachment:
cameringo_20181117_155348b.jpg


2...

Attachment:
cameringo_20181117_155346.jpg


UCA mount crush tubes cut from 1.0 x .156 wall DOM...

Attachment:
cameringo_20181117_163949.jpg


...and bored to .456.

Attachment:
cameringo_20181118_123551.jpg


Time to travel back in time for MOCKUPS! Easily explained, on FB you'll find that I'm the sole proprietor of GF Paradox Time Machines, LLC, Inc.

Attachment:
cameringo_20181117_170615.jpg


Cleaned up Pivot bar fixtures the crush tubes, a length of 3/8 keystock sets the crush tube height, weldage occurs.

Attachment:
cameringo_20181118_163227.jpg


After fully welding the crush tubes, more mockup fun. Jag UCA arms attached to the Pivot bar, those two welding magnets (I need bigger magnets) barely held the thing on.

Attachment:
cameringo_20181120_140107.jpg


But then, Robb's Calibrated Eyeball (tm) verified that the 15.5 degree cut on the UCA cross tube (from the drawing, shown somewhere upthread 2 or 3 pages ago, maybe 4) was not quite parallel to the LCA pivot bolt CL...

...so, time for FUN WITH LASERS!!!!

Attachment:
cameringo_20181121_155430.jpg


Don't blind yourself! I'll show you a centerline what is a centerline!

Attachment:
cameringo_20181121_155608.jpg


With various straightedges clamped to LCA pivot references, the drivers side LCA pivot angle was found to be an actual 14.1 degrees, and the passenger side 14.2 degrees. a .1 degree tolerance being perfectly acceptable, I rounded the included angle to 28.2, and massaged the UCA cross tube to 14.1 degrees on each end.

Then it was time to disassemble the Jag spindles...

...and avoid the tyranny of the 12-pic limit!

CONTINUED BELOW!!!


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_________________
The B-3 build log: http://www.locostusa.com/forums/viewtopic.php?f=36&t=13941 unfortunately, all the pictures were lost in the massive server crash

The beginnings of the Jag Special,
https://www.locostusa.com/forums/viewtopic.php?f=36&t=19012
Again, all pictures were lost.


Last edited by robbovius on November 27, 2018, 1:26 pm, edited 2 times in total.

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 Post subject: Re: The Pamilcar
PostPosted: November 27, 2018, 1:20 pm 
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Posts: 1937
Location: worcester county, Massachsetts
Where were we? oh yeah, disassembling the Jag Spindles.

Okay, these things are not even a little lightweight, coming off of a 4075lb car as they do, but I need to work with them to set camber and caster, etc, and the rotors are pretty beat, and the dust shield needs to get gone, and so...

...into the vice with you! Pull the hub nut and outer bearing, and remove the hub with rotor.

Attachment:
cameringo_20181122_125620.jpg


Reposition and undo three fasteners (one, of course, is a combination caliper and steering arm bolt. how very britiish)

Attachment:
cameringo_20181122_125757.jpg


Dust shield gone, Apply heat to remove the top ball joint. I'm a craftsman, says so on my torch.

Attachment:
cameringo_20181122_130648.jpg


Then after cleaning up various mangled and gnarly ball joint threads, and tacking the UCA pivot bar mounts to the cross tube, it was once again MOCKUP TIME! Lookit all that positive camber, oh yeeaaaahhhh...

Attachment:
cameringo_20181122_135429.jpg


A bit of adjustment, but just a bit, install the Jag shock mount, drag out a leftover from the B-3 build, hang a tire off that thing and even more SUPER MOCKUPY MOCKUPZZZZ!

Attachment:
cameringo_20181123_132541.jpg


BOOM! Oh yeaaahhh.

Attachment:
cameringo_20181123_132546b.jpg


Then I warmed my feet by the fire...

Attachment:
cameringo_20181120_124940b.jpg


And so it stands today. over the weekend a little bit of camber measuring happened, but that has yet to be recorded for posterity, and revealed to the world.


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_________________
The B-3 build log: http://www.locostusa.com/forums/viewtopic.php?f=36&t=13941 unfortunately, all the pictures were lost in the massive server crash

The beginnings of the Jag Special,
https://www.locostusa.com/forums/viewtopic.php?f=36&t=19012
Again, all pictures were lost.


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 Post subject: Re: The Pamilcar
PostPosted: January 8, 2019, 8:22 am 
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Joined: August 12, 2012, 6:38 pm
Posts: 1937
Location: worcester county, Massachsetts
A crap ton happened since Nov 27th. and if you're Facebook friends with me or a member of the "Homebuilt cars from scratch or kits" FB page, you'll have seen the construction of the front end bracing...here's pics, figure it out, Einsteins.

This...

Attachment:
cameringo_20181202_144313.jpg


...and then...

Attachment:
cameringo_20181208_161641.jpg


...and then...

Attachment:
cameringo_20181209_141810.jpg


...and then...

Attachment:
cameringo_20181222_131318.jpg


...and then...

Xmas Day...

Attachment:
cameringo_20181225_160921.jpg


...and then...

Attachment:
cameringo_20181226_153407.jpg


...and then...

Attachment:
cameringo_20181227_160038.jpg


The Jag special looks like this now.

Attachment:
cameringo_20181229_162423.jpg


The UCA mount bar was shortened two inches to set initial camber at -3.5 degrees, and adjustment shims were made to set the wheels at the desired -2.0 deg camber. it works pretty great on the B-3, so it's happening here too

And the front shocks are mocked up to figure out top mount placement. The mockup struts mimic Speedway Motors small body coilovers at an installed length of 11.5 inches. that's 1.0 sq tube with 1.0 inch water pipe insulation sleeving holding the Speedway 250lb/in spring concentric with the strut.

Attachment:
cameringo_20181230_150111.jpg


mockup shock at 25 degrees. bottom mount is the stock jag shock mount. how bloody convenient.

Attachment:
cameringo_20181230_151908.jpg


At one point it wound up on its side, because, well, why wouldn't it?

Attachment:
cameringo_20181229_141726.jpg


lately, so began the driveshaft tunnel...

Attachment:
cameringo_20190102_182519.jpg


...and then...


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_________________
The B-3 build log: http://www.locostusa.com/forums/viewtopic.php?f=36&t=13941 unfortunately, all the pictures were lost in the massive server crash

The beginnings of the Jag Special,
https://www.locostusa.com/forums/viewtopic.php?f=36&t=19012
Again, all pictures were lost.


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 Post subject: Re: The Jag Special
PostPosted: January 28, 2019, 12:05 pm 
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Posts: 1937
Location: worcester county, Massachsetts
...the Hopkinton Center for the Arts "Beatles to Bach 2" faculty concert happened. There ensued a couple weeks of practices and setup. We played great.

Attachment:
Screenshot_20190113-193130_Video Player[1].jpg


After which I was able to return to the Jag Special build, and getting on with fabricating the front upper shock mounts.

Because the G'raj work space is to totally jammed, I spend a lot of time stepping over the front wheels of the Jag Special and looking down at them and their connections to the chassis. During one of those frequent trips, I happened to notice that something looked amiss, like one steering arm was rather closer to the chassis station 2 uprights than the other...

...like this. Driver's side...

Attachment:
cameringo_20190119_134142.jpg


..vs. Passenger side.

Attachment:
cameringo_20190119_134212.jpg


As Can be imagined, this caused no end of freak out. I swore a lot. I mean, I am fairly sure the post record chronicles the care I'd taken in measurement and alignment and lasers overuse and etc. etc. blah blah blah, but seriously? A half inch difference in longitudinal position of the steering arm tie-rod bosses? seriously?

Of course this caused a three-day session of re-measuring EVERYDAMNTHINGTENMORETIMES, from the Zero Datum to well, everywhere which could possibly have affected that steering arm placement.

As an example, UCA mount cross bar tube to Zero Datum...

Attachment:
cameringo_20190119_134323.jpg


...which measured within 1/32 inch end to end. In fact, nothing showed a difference greater than .06, anywhere, so I was somewhat relieved. The logical conclusion is that one steering arm is bent, and I'll remove them both and measure them later.

But, that drama averted, I continued with my top shock mount plans.

With my mockup coilovers in place, I employed the tried and true CAD methodology to create a top shock mount template...

Attachment:
cameringo_20190119_150255.jpg


Attachment:
cameringo_20190119_150314.jpg


...and made sure it worked on both sides.

Attachment:
cameringo_20190119_150457.jpg


I then ordered some 1.5 W x 3.0 H .120 wall rectangle ERW and sat back await it's arrival, during which time it snowed.

Attachment:
cameringo_20190120_133501.jpg


And then...

...Et voila ici!

Attachment:
cameringo_20190120_152709.jpg


So I used the CAD template to create a dimensioned sketch of the part...

Attachment:
cameringo_20190120_170215.jpg


For the Jag Special, the build notebook is getting far more use capturing part fabrication, than did the B-3.

And then, by various means, both roughed out two parts, and hit the 12-pic limit.

Attachment:
cameringo_20190120_170425.jpg


Attachment:
cameringo_20190120_173307.jpg


And - as I have become so fond of saying - then...


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_________________
The B-3 build log: http://www.locostusa.com/forums/viewtopic.php?f=36&t=13941 unfortunately, all the pictures were lost in the massive server crash

The beginnings of the Jag Special,
https://www.locostusa.com/forums/viewtopic.php?f=36&t=19012
Again, all pictures were lost.


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 Post subject: Re: The Jag Special
PostPosted: January 28, 2019, 3:26 pm 
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Joined: August 12, 2012, 6:38 pm
Posts: 1937
Location: worcester county, Massachsetts
...I waited a day, and made the two new upper shock mount brackets look a bit less rough.

Attachment:
cameringo_20190121_180448.jpg


Now, if you'll recall, (or, if you don't you can go back to page one of this story and read, in the very first entry, that...) Pam is a Car Girl. She is absolutely involved in this project, solid and unrelenting in her support and enthusiasm. She even has money involved in the Jag Special. Like fer instance...

We went halfsies on these jewel-like Proshock coilovers from Speedway Motors - 12 inch mounted length, 325 in-lb springs.

Attachment:
cameringo_20190124_134159.jpg


I became entranced by their shininesssssss... yesss, the PRECIOUSSSSSS!!!!

Then I took them out to the G'raj and assembled them, first by undoing the jam-nut under the top cap...

Attachment:
cameringo_20190126_140616.jpg


...sliding the spring into place and then threading the piston rod back into the top cap and tightening the nut, easy-peasy.

Attachment:
cameringo_20190126_140759.jpg


Attachment:
cameringo_20190126_153230.jpg


My fabricated upper shock mounts - and the stock jag lower shock mounts - have an internal width of 1.28 , but the Proshocks, as delivered, have a (Steel-bushed urethane) mounting bushing width of 1.50. Since the actual bearing surface on the shock is the .578 width of the shock body (and top cap) end boss, I decided there would be no harm in trimming the bushings back to 1.27 to fit...

Attachment:
cameringo_20190126_153358.jpg


Attachment:
cameringo_20190126_153405.jpg


...and mocked them into place on the lower control arms.

Attachment:
cameringo_20190126_164804.jpg


Then I waited a day for some thinking.

Once I got that out of the way, things seemed obvious - as they always finally do, to me, anyway - and I turned the spring height adjusters down until I had the 12.0 inch mounted length set on each side (yes, yes, I know, that's only for this mockup setting, duh, c'mon ;-) ), and bolted the upper shock mounts to the coilover top caps, and discovered that the top mounts, as made, needed some .75 inch spacer underneath to fit correctly...

Attachment:
cameringo_20190127_164331.jpg


...which had the added benefit and allowing me to clamp both upper shock mounts into place, and - you may have noticed - allowed me to remove the cement blocks from under the frame, on which it has sat since its very beginnings (except for that day I got the rear end in and rolled it around on its back wheels and a furniture dolly at the front), which thereby allowed me to, for the very first time, roll it back and forth on all four wheels.

It's a roller, man, and THAT MEANS IT'S A CAR!!!

oh yeah.

OH. YEAH. Things just got real up in heyah.


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_________________
The B-3 build log: http://www.locostusa.com/forums/viewtopic.php?f=36&t=13941 unfortunately, all the pictures were lost in the massive server crash

The beginnings of the Jag Special,
https://www.locostusa.com/forums/viewtopic.php?f=36&t=19012
Again, all pictures were lost.


Last edited by robbovius on January 30, 2019, 7:00 pm, edited 1 time in total.

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 Post subject: Re: The Jag Special
PostPosted: January 28, 2019, 3:47 pm 
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Joined: August 12, 2012, 6:38 pm
Posts: 1937
Location: worcester county, Massachsetts
Oh, and, lest I forget, new CAD - no, not THAT CAD, the other CAD - renderings!

Attachment:
Jag Spl 1-25-19.JPG


Attachment:
Jag Spl 1-25-19b.JPG


Attachment:
Jag Spl 1-25-19c.JPG


Attachment:
Jag Spl 1-25-19d.JPG


yup.

And then...


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_________________
The B-3 build log: http://www.locostusa.com/forums/viewtopic.php?f=36&t=13941 unfortunately, all the pictures were lost in the massive server crash

The beginnings of the Jag Special,
https://www.locostusa.com/forums/viewtopic.php?f=36&t=19012
Again, all pictures were lost.


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 Post subject: Re: The Jag Special
PostPosted: February 6, 2019, 8:18 am 
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Joined: August 12, 2012, 6:38 pm
Posts: 1937
Location: worcester county, Massachsetts
So, after getting the top front suspension brackets mocked in, I had to wait for materials to arrive, As I've decided that I should make new brackets out of 1.5 x 4 tube, eliminating the need for the 3/4 inch riser to space the 1.5 x 3 brackets upward.

While waiting, I did fabricate the engine crossmember doubler tube and get that welded in. That Jag XK 6-banger is a right old lump, 605 lbs by itself, so it's support needs to be extra beefy. The upside is now I feel I could put any old engine in there I wanted, and it would take the weight, up to and including perhaps a 455 Pontiac. Or maybe a 500 Caddy? Or some other lunacy, I suppose. DOHC modular Ford? Easy, that one. Jag V12 - 750 lbs - I suppose, would be in keeping with the Jag Special Vibe. All daydreams though, as I predict with some surety - based on my B-3 experience - that once this thing gets done, and I'm driving it thru that first year of DD development, it's gonna get left alone and just refined.

Anyway, I whipped out some 1x 2 .083 wall tube, cut it to length, mitred the ends to 8 deg, and then massaged the obstructing welds to flatness...

Attachment:
20190202_155446b.jpg


After appropriate massagement (to coin a word), the doubler laid in flat. In the interest of full disclosure, that's Doubler V 2.0, as V1.0 was about .060 too short.

Attachment:
20190202_163058b.jpg


CLAMPS, he cried, CLAMPS!

Attachment:
20190202_163600b.jpg


Then I waited a day for it to ripen.

But, that very next day, round and round the welding goes. Melt-y goodness.

Attachment:
20190203_163505b.jpg


...but then just yesterday Cambot2 reported that steel got delivered by a particularly cheerful - or disturbing - UPS Driver...

Attachment:
steel deliv 2-5-19.JPG


...thus predicting a weekend of bracketization. Oh that shall be fun, don't you think?


...and then...


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_________________
The B-3 build log: http://www.locostusa.com/forums/viewtopic.php?f=36&t=13941 unfortunately, all the pictures were lost in the massive server crash

The beginnings of the Jag Special,
https://www.locostusa.com/forums/viewtopic.php?f=36&t=19012
Again, all pictures were lost.


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 Post subject: Re: The Jag Special
PostPosted: February 13, 2019, 12:43 pm 
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Joined: August 12, 2012, 6:38 pm
Posts: 1937
Location: worcester county, Massachsetts
...I took the new steel out to the G'raj and unpacked it, and then set about updating the build notebook sketch for the new 1.5 x 4.0. x .120 wall material, all the while wondering, "I wonder where this will be in a thousand years?"

Attachment:
cameringo_20190212_161103.jpg


I had no answer for that beyond, "I dunno.", so I set about cutting the new tube material into the requisite shapes.

Attachment:
cameringo_20190212_161039.jpg


If the B-3 build was defined by the chopsaw, this build is all about the reciprocating saw, at least during these cold months. It was snowing again as I made the sparks fly...

Attachment:
cameringo_20190212_161233.jpg


...back to massaging the top shock brackets into shape.

Attachment:
cameringo_20190212_162744.jpg


I protected the top of the shocks with a towel while I ground flat the upper weld beads on the UCA cross tube...

Attachment:
cameringo_20190212_162821.jpg


...after which, both brackets got a test fit.

Attachment:
cameringo_20190212_162823b.jpg


A few judicious taps with the hammer, and a bit of measuring, and I had them both into place and symmetric, so I marked their respective positions with a sharpie, and then...I really, really, really, wanted to just weld them into place. But I didn't as more shaping needed to occur.

what you can't see in the above picture, is that the forward inner edge of each bracket sits ahead of the small vertical tube (which ties the UCA cross tube to the upper chassis tube on each side) by about .5 inch. the gaping space between the end of the bracket and the vertical tube offended my eye, and would have resulted in extremely ugly plating to tie it into the vertical tube.

So, I used a meter stick to mark the corners of the brackets so that I could V-notch, bend, and weld the brackets so that forward inner edge met the vertical tube more nicely.

One tube marked, the other notched and squeezed closed for welding...and by closed, I mean beaten with a hammer (always fun!), mashed in the vice, and then held closed with a big C-clamp.

Attachment:
cameringo_20190212_172913.jpg


Welded, and ground smooth...

Attachment:
cameringo_20190212_173856.jpg


...rinse, repeat.

Attachment:
cameringo_20190212_180006.jpg


Then set in place, and looks much nicer, though it's still a bit of an indelicate block, needs something more, I think. I'm pretty sure, by that hand-drawn sharpie circle, you can tell where I'm going next...

Attachment:
cameringo_20190212_181334.jpg


And then...


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_________________
The B-3 build log: http://www.locostusa.com/forums/viewtopic.php?f=36&t=13941 unfortunately, all the pictures were lost in the massive server crash

The beginnings of the Jag Special,
https://www.locostusa.com/forums/viewtopic.php?f=36&t=19012
Again, all pictures were lost.


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 Post subject: Re: The Jag Special
PostPosted: February 21, 2019, 8:16 am 
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Joined: August 12, 2012, 6:38 pm
Posts: 1937
Location: worcester county, Massachsetts
...there was catching up to do.

First an expositional view of front shock mounts V1.0 and V2.0...

Attachment:
cameringo_20190214_124105.jpg


...and a view of the taper I'd added to match the UCA X-tube angle.

Attachment:
cameringo_20190214_124207.jpg


Also, in that view you can see how close the UCA is to the coil-over spring. Yup, I'll be fabricating some new control arms for clearance.

Anyway, the 1.5 x 4.0 front shock mounts cried out for some sculpting, and so I thought a stiffening tube thru the middle would look great and work nicely, and so...

...marked at the approximate center - or, rather where the hole looked "right" - pilot drilled thru...

Attachment:
cameringo_20190215_115935.jpg


...and fire up the 2.0 hole saw! Gets a bit screechy, it does. Y'know, I have to take this moment to express my admiration for that Porter-Cable bench top drill press. It built the B-3 lo those many years ago, and here we are, drilling every hole possible. It's proved to be an excellent tool...for anyone reading this whose in the planning stages, or thinking about getting into a scratch build and worrying about tool quality/cost, I submit that you don't need the best tools, you just need tools that work.

Anyway, where was I. Right. Hole sawing the hole.

Attachment:
cameringo_20190215_113215.jpg


Mockup! Ooohh, pretty...

Attachment:
cameringo_20190215_114428.jpg


Then spend an hour searching for my leftover (from the B-3) Speedway Motors 2.0 OD exhaust J-tubes, find them in an over head hidden shelf above the fluorescent lights (WTF? why there? I suppose it made sense at the time, but, really?) lop off a section and test fit...

Attachment:
cameringo_20190215_113855.jpg


Weld It! Burn thru allowed, because...

Attachment:
cameringo_20190215_131632.jpg


it's gonna get ground smooth. Not flush, but leaving a bit of texture to the faces of the bracket. I'm an Artiste, I am. Clamped in place and aligned to the marks...

Attachment:
cameringo_20190215_135540.jpg


WELD IT!!!!

initially anyway...

Attachment:
cameringo_20190215_141052.jpg


...and then, the big moment. Jack the chassis up, pull the blocks and roll it around on it's own damn wheels for the very first time as a for-real honest to jeebus roller. oh yeeaaahhh. Satisfaction guaranteed, yo.

Attachment:
cameringo_20190215_152946.jpg


Moar Pitchurzz! Of the SAME THING!!!

Attachment:
cameringo_20190215_153927.jpg


Attachment:
cameringo_20190215_153940.jpg


*(&#(*@#&$)&#_%*#@)(*^&$)*(!_*@#)($*)*(^&$ing 12 pic limit!

And then...


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_________________
The B-3 build log: http://www.locostusa.com/forums/viewtopic.php?f=36&t=13941 unfortunately, all the pictures were lost in the massive server crash

The beginnings of the Jag Special,
https://www.locostusa.com/forums/viewtopic.php?f=36&t=19012
Again, all pictures were lost.


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 Post subject: Re: The Jag Special
PostPosted: February 21, 2019, 8:20 am 
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Joined: October 6, 2009, 9:29 am
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Location: Tallahassee, FL (The Center of the Known Universe)
Bubba like shiny metal things with hole thru 'em... :mrgreen:

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JD, father of Quinn, Son of a... Build Log
Quinn the Slotus:Ford 302 Powered, Mallock-Inspired, Tube Frame, Hillclimb Special
"Gonzo and friends: Last night must have been quite a night. Camelot moments, mechanical marvels, Rustoleum launches, flying squirrels, fru-fru tea cuppers, V8 envy, Ensure catch cans -- and it wasn't even a full moon." -- SeattleTom


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 Post subject: Re: The Jag Special
PostPosted: February 21, 2019, 9:06 am 
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Joined: August 12, 2012, 6:38 pm
Posts: 1937
Location: worcester county, Massachsetts
...fill the vertical gaps with 1/8th x .50 strap and weld the sorry bejesus outta those brackets. Mmmmm, ugly welds. Cringe at their majesty.

Attachment:
cameringo_20190215_165042.jpg


I really don't want this front suspension structure moving around, and I am a big proponent of over building for street-worthiness, and so top bracing of the area between the upper shock brackets was always in the plan.

1.0 x .065 cross tube tacked in, figuring out the angle braces...

Attachment:
cameringo_20190216_150548.jpg


...cut the first (1.0 OD x .083 wall ERW) magnet to marks. No, I did not intend them to be aligned to the "W" below.

Attachment:
cameringo_20190216_152103.jpg


Later that same afternoon...

Attachment:
cameringo_20190216_154429.jpg


The upper ends of those top angle braces are where there are, specifically so I can do this - Moar OverBuildage! Or, rather. Bracing to strengthn the front in torsion, but leave room for that lovely old XK 6-banger which is going in there.

Drivers side, also of 1.0 x .083 wall ERW.

Attachment:
cameringo_20190216_161946.jpg


Setting cut angles for the passenger side...

Attachment:
cameringo_20190217_152032.jpg


Engine bay bracing...

Attachment:
cameringo_20190217_152017.jpg


...and then, visualizing the load path from the top coil-over bolt, add the "eyebrows" (.75 x 1.5 x .083 wall rect ERW)

Attachment:
cameringo_20190217_164757.jpg


I noticed the rear end of the chassis feeling lonely and unloved, and so measured and cut the - 1.0 SQ x .083 wall - angle bracing tubes. These triangulate to the node where the Watts Link mounts will attach.

Uno...

Attachment:
cameringo_20190220_164923.jpg


Cut Line Exposition. I've gotten really good with the Ryobi recip, I have. like I said I'm an Artiste.

Attachment:
cameringo_20190220_164944.jpg


Dos...

Attachment:
cameringo_20190220_171021.jpg


...then, remember how I'd found that the passenger side steering arm was 3/8th closer to the station 2 chassis vertical than the drivers side? and thought perhaps that a steering arms was bent? subsequent investigations proved that to not be the case. which, as you would imagine, drove me a bit crazy...and by "a bit", I mean A LOT, 'cuz I have skillz in that department.

So I broke out the double Stanley tapes again and all my various straight edges and levels - what? no lasers this time? - and set about measuring everything again from the lower ball joint studs to the chassis zero datum tube, which you can see in the above pic, with the word "ORIGIN" just barely legible on the right.

Measurements recorded in the build notebook...

Attachment:
cameringo_20190220_185134.jpg


So, everything is apparently square and straight to within 1/32nd inch. Particularly gratifying is the cross measurement being fundamentally exactly equal. I can hear some saying "Pics or it didn't happen!"

... and the f@cking 12 pic limit is reached. ahrg.


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The B-3 build log: http://www.locostusa.com/forums/viewtopic.php?f=36&t=13941 unfortunately, all the pictures were lost in the massive server crash

The beginnings of the Jag Special,
https://www.locostusa.com/forums/viewtopic.php?f=36&t=19012
Again, all pictures were lost.


Last edited by robbovius on February 25, 2019, 8:09 am, edited 1 time in total.

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 Post subject: Re: The Jag Special
PostPosted: February 21, 2019, 9:15 am 
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Joined: August 12, 2012, 6:38 pm
Posts: 1937
Location: worcester county, Massachsetts
where was I... oh yeah.

the setup...

Attachment:
cameringo_20190220_180339.jpg


the end tab of the tape is hooked over the end of the lower ball joint stud protruding up thru the boss on the spindle, and extended across to the opposite corner of the Zero Datum tube, passing under the chassis just at that corner. the tapes are fundamentally straight, crossing each other at 57 inches.

Drivers side measurement...

Attachment:
cameringo_20190220_180748.jpg


...and passenger side.

Attachment:
cameringo_20190220_180704.jpg


. As you may well imagine, I was positively giddy to have confirmed (again, for, like, the third time) that I actually had built the thing straight and square.

After that riding the high, I called it a night and went in for dinner.

...and then...


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The B-3 build log: http://www.locostusa.com/forums/viewtopic.php?f=36&t=13941 unfortunately, all the pictures were lost in the massive server crash

The beginnings of the Jag Special,
https://www.locostusa.com/forums/viewtopic.php?f=36&t=19012
Again, all pictures were lost.


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 Post subject: Re: The Jag Special
PostPosted: February 21, 2019, 9:18 am 
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Joined: August 12, 2012, 6:38 pm
Posts: 1937
Location: worcester county, Massachsetts
GonzoRacer wrote:
Bubba like shiny metal things with hole thru 'em... :mrgreen:


*sigh* Don't we all ;-)

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The B-3 build log: http://www.locostusa.com/forums/viewtopic.php?f=36&t=13941 unfortunately, all the pictures were lost in the massive server crash

The beginnings of the Jag Special,
https://www.locostusa.com/forums/viewtopic.php?f=36&t=19012
Again, all pictures were lost.


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