comp1839 Posted September 4, 2010 Share Posted September 4, 2010 (edited) i've started a new topic on this, even though it is the chassis for my TAD chassis. the jig i built can be used and retro fitted with any number of fabricated fixtures to build anything from a short wheel base door car, to a funny car, to a 300" wheelbase dragster. the back bone is a piece of extruded 1"x2" "t" slot aluminum. you can see in the pictures the fixtures i've produced for the dragster build. i try to emmulate the actual process/ procedure of building a 1:1 car. you can see the pinion center line of the rear is tied directly to some machined plates that reproduce the relationship of crankshaft centerline and motor plates. towards the front you can see the stands that hold the king pin boss for the front end. the correct king pin angle, front end width, wheelbase and front end offset(if any) is also set. there are some other fixtures not shown that set other parameters. such as, shoulder hoop height, roll cage position, etc. i hope this is informative and if you have any questions, just yell. hope you enjoy! Edited September 4, 2010 by comp1839 Quote Link to comment Share on other sites More sharing options...
Cato Posted September 4, 2010 Share Posted September 4, 2010 the jig i built can be used and retro fitted with any number of fabricated fixtures to build anything from a short wheel base door car, to a funny car, to a 300" wheelbase dragster. -And I showed-off a plastic magazine holder as my GT40 jig Boy you know how to hurt a guy... Just brilliant and the 1:1 methodology is the perfect way to get 1:1 results. Watching Indy all weekend I presume?? Any chance you can whip-up Melanie's ProMod?? She's my fave. Quote Link to comment Share on other sites More sharing options...
comp1839 Posted September 4, 2010 Author Share Posted September 4, 2010 cato, if there were any way i could make a magazine holder work for me....i would. it shows great thought and ingenuity to make things like that work for you. melanie is one of my favorites too. besides being not to hard on the eye, she has a great attitude about racing. i have a pro mod '63 corvette on my long distance radar but, first i have to finish this dragster and hopefully the pro mod "cuda will be ready to start on again, soon. since it takes me almost a year to complete a model you can see how far out my 'vette could be. and you bet.......i'll be a couch spud all day tomorrow and monday! Quote Link to comment Share on other sites More sharing options...
GrandpaMcGurk Posted September 4, 2010 Share Posted September 4, 2010 Dave, your chassis jig impressed me big time. Relatively simple, effective and above all else looks pretty user friendly....good stuff indeed. I'd like to be on the couch this weekend but I have a nostalgia "old fart" drag racing gig this weekend. Great fun, no tree.....flag drop, run what you brung. Quote Link to comment Share on other sites More sharing options...
Ghost1 Posted September 4, 2010 Share Posted September 4, 2010 Very nice jig. Where did you get the material from. Thanks, Charles Quote Link to comment Share on other sites More sharing options...
comp1839 Posted September 4, 2010 Author Share Posted September 4, 2010 thanks don. glad you like the jig. watcha runnin' at the old farts gig? charles, the extrusion is from a company called 80/20. i bought from a supplier called mcmaster carr. the rest of the pieces are just "what not's" i had laying around. Quote Link to comment Share on other sites More sharing options...
arick Posted September 4, 2010 Share Posted September 4, 2010 Hey Dave Do the chassis shops really use elastic bands???? Just kidding of course. Thanks for shareing your work with the rest of us. Truely enspiring! Quote Link to comment Share on other sites More sharing options...
comp1839 Posted September 5, 2010 Author Share Posted September 5, 2010 (edited) "Do the chassis shops really use elastic bands????" well, sure they do rick. just really big ones and when they're done with 'em, they use 'em for blower belts! LOL!!! Edited September 5, 2010 by comp1839 Quote Link to comment Share on other sites More sharing options...
vontrips Posted September 5, 2010 Share Posted September 5, 2010 Wow..magnificent stuff. Don't let Sherline see it, it's probably stronger than their gear! LOL! Quote Link to comment Share on other sites More sharing options...
GrandpaMcGurk Posted September 5, 2010 Share Posted September 5, 2010 thanks don. glad you like the jig. watcha runnin' at the old farts gig? charles, the extrusion is from a company called 80/20. i bought from a supplier called mcmaster carr. the rest of the pieces are just "what not's" i had laying around. Dave, I don't want to get your thread too far off topic but you asked so here's a couple quick pics.... My 150 isn't quite 15 years old yet.....300 in-line six, headers, gears, 5-speed and mild hop-up, It'll be a "grudge" race against a bud's '37 Chevy Coupe, 292 in-line six with a whole row of carbs. The green car peeking out behind the truck is an old Chrysler New Yorker. I have a fresh 2-4 barrel 440 in it with toys....it's a big heavy car but once it's rolling it steps out just fine. I have no idea what the gang will put it up against. Our dragstrip is a private runway on private property. Hey, it keeps me off the streets, and you don't need mega buck sponsors to play. Quote Link to comment Share on other sites More sharing options...
comp1839 Posted September 5, 2010 Author Share Posted September 5, 2010 well it looks like you'll have a great time. all the key ingredients are there for sure. keep it safe and i hope you win! Quote Link to comment Share on other sites More sharing options...
manta69 Posted September 6, 2010 Share Posted September 6, 2010 just goes to show that great minds think alike - I use some similar extrusion from a european manufacturer, only 'just' 500mm long (and I thought that was big . I also have smaller offcuts, nuts bolts washers etc for putting together solder jigs for other parts, I try to make them universal. I'll try to remember my camera and post pics to give more ideas. Quote Link to comment Share on other sites More sharing options...
manta69 Posted October 1, 2010 Share Posted October 1, 2010 a few pics of some of my jigs. bigAL Quote Link to comment Share on other sites More sharing options...
comp1839 Posted October 1, 2010 Author Share Posted October 1, 2010 very cool al! i'll have to add a holding fixture like you're using on the side of your table. 360 degrees of rotation with horizontal and vertical. awesome. sometimes the simplest stuff is the coolest. Quote Link to comment Share on other sites More sharing options...
Modelcarjedi Posted October 3, 2010 Share Posted October 3, 2010 your work area is too clean! maybe thats why all my stuff looks like junk hehehehehehehe. I love seeing your builds come together cool stuff! but just a dab of rust would realy set them off i swear keith Quote Link to comment Share on other sites More sharing options...
manta69 Posted October 3, 2010 Share Posted October 3, 2010 Thanks, the clamp actually belonged to my grandfather so is as much an antique as me, I just turned up a spigot in my lathe and is probably the best jig related thing I've made - it does meen keeping the workbench clear so the horizontal swing can be used. Second pic is a jig I made for the Lotus steering rack to keep all the tubes both concentric and in the right position whilst soldering - I'm making 5 models of the Lotus by the way. Third pic is also a simple solution - I unscrewed the pin vice from its handle and put a nut & bolt into the groove, now I can have both hands free and rotate the vice to any angle. That pin vice has also been used to make suspension arms with some new pins turned in the lathe to suit the size of the tubes on each end they can then be spaced to suit and clamp the tube between them whilst soldering. keep up the awesome work! bigAL your work area is too clean! maybe thats why all my stuff looks like junk hehehehehehehe. I love seeing your builds come together cool stuff! but just a dab of rust would realy set them off i swear keith Quote Link to comment Share on other sites More sharing options...
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