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Post by Jim Weickum on Jun 9, 2022 8:44:17 GMT -7
Home Racing World Forum has a lot of information on building a brass chassis. The Host, Harry Wise, has videos on how to build a chassis. They, HRM Forum, has proxy racing with using the brass chassis. They do both 1/32nd and 1/24th cars, mostly to run on Harry's Oval track. Slot Car Corner will set up a location on their site, where all the parts to build a car for these classes are available. Harry uses a very simple chassis to show how to make a chassis for the racing. It would be a simple ladder frame chassis.
Jim W
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Post by Jim Weickum on Jun 9, 2022 9:07:22 GMT -7
I, like David A, built a brass chassis in the 60's. Mine was with a Classic motor that came with a brass motor plate, that I used to feed the tubing through to make the "frame". I didn't have a rear axle mount, so I just formed the brass tube to the brass bushings and soldered it together. The car was a 1/24th F1 body, so the body fit tight over the chassis. My setup block was a piece of wood that I cut a slot in for the guide. I used an "Independent" front axle, so the car was quite "fancy" for me.
At work we had to solder to make repairs on the Electronics that we used on the Aircraft and Equipment. I went to a soldering class at Lowry and about failed, so I knew I was not good at soldering and have not done it since then. I was smart enough to know my limits and after my near failure of the class, I would send my 4 best Technicians to the classes to keep getting recertified and do all of our soldering. They gladly kept me out of doing the soldering since my motto was the bigger the Blob the Better the Job. I was too shacky to do the soldering.
Jim W
That class was to solder to NASA standards, so I think I know why the Space Program had problems after I went through the course.
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Post by David C. on Jun 9, 2022 10:35:39 GMT -7
Here are some brass motor brackets and guide flag tubes. The guide flag tubes are from Dennis Samson and one motor bracket is from Dennis Samson. pin.it/2yDqjGQpin.it/45ZfiLrpin.it/5p70J5ppin.it/7FMMtbqpin.it/4cscL1fWhat bulk materials I have found useful for a brass "pan" type chassis are: .032 brass plate - side pans .040 brass plate .062 brass plate - for the "Toung" that holds the guide flag tube. I have been cutting out my own Toung's but the can also be purchased. Piano wire of various thicknesses - .040, .047 &.062 .125 brass tube for the front axle housing tube that a 3/32" axle rides in. Bronze bushing/bearings to solder into the motor bracket for the rear axle. Tools- Soldering iron Solder and flux cutting tools- Dremel with a metal cutting wheel or even a hack saw. scotch brite and/or sandpaper to clean the oxidization off the brass before soldering Also a Chassis jig and pins is very helpful in building a chassis and this is probably the least expensive type jig currently on the market today. slotcarcorner.com/collections/chassis-jigs
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Post by David C. on Jun 10, 2022 16:00:29 GMT -7
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Post by David C. on Jun 10, 2022 16:05:48 GMT -7
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Post by Jim Weickum on Jun 12, 2022 11:46:09 GMT -7
In our rules for racing, General Rules, under section IV: Racing Classes - item 3. Unlimited class, we have always had the opportunity for modified / re-worked / scratch built chassis. I would think that it would also be allowed in the Limited class, with certain other restrictions, such as motor.
Section IV: Racing Classes When a particular race is announced, in addition to the category (Sec III), a certain "class" will also be announced. The purpose of these class divisions is two-fold: a) to bring parity to the competition b) to allow drivers to compete and build race cars at any involvement level they desire. (Before choosing a class for a race, the race committee will want to carefully consider if a majority of members have equipment to compete in that class and category combination, or that cars, components, can be readily purchased.) FRVSC & HRC has set the following four (4) classes and definitions for its 1/32 racing program: 1) "BOX STOCK - PLUS" will be all currently manufactured vintage prototype ready to run (RTR) cars as they "come out of the box." Pre-race preparations will be limited to lubrication, guide and gear adjustment, removal of magnet(s), adding of weight, suitable tires and tire truing. 2) "LIMITED" class will encompass a variety of car constructions / sources, with the overriding rule being the use of stock OEM (original equipment of the manufacturer) motors, whether modern or vintage. Of course, guidelines from Sections 1 and II are still in effect. The following types of cars are all acceptable: a) currently manufactured 1/32 RTR or "kit" cars. The only modifications allowed are the swapping of tires and/or wheels, drive gear and axle, pickup shoe and braids, removal of magnet(s) and the addition of weight. b) true vintage slot cars, again with OEM non-modified motors and chassis, or equivalent modern motor substituted. c) scratch built cars, with motors as above. 3) "UNLIMITED" class, as the name implies, allows cars to enter with modifications of any kind. Rules from sections I and II are still in effect. Changing motors, tires and/or wheels, drive gear and/or axle, pickup shoe and/or braids, use of special bearings, modified / re-worked / scratch built chassis, etc., are all allowed in this class. 4) "VINTAGE" class will feature slot cars which were manufactured pre-1969. All true vintage manufactured equipment, including motors, must be used. The one exception is the tires. Modern tires may be used, but must be installed on vintage rims. Modifications may be made which are true to period practices, examples: a different gear for ratio changes, use of ball bearings and the addition of weight for better handling.
When we ran the 70mm max Wheelbase class, we had a few cars that had a brass chassis in this class. Those cars were much better handling cars than our plastic or resin chassis cars. Mark G's car was able to run full power all the way around at Fred's track, we used a 14k max motor. Mark's car had a Dennis Sampson chassis in it.
Jim W
With the "skill level" of some builders, I would think a Unlimited class would also allow me to possibly use a 3D printed chassis vs. the brass chassis??? Yes, I know I should learn to solder better so I can fix a few Vintage chassis like Chris Walker does with his cars, such as the standard Monogram brass chassis.
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Post by Steve Burkey on Jun 13, 2022 8:58:07 GMT -7
I could say a lot about scratchbuilding, as I've been doing it all along as a certain body material and prototype demanded. I too did it when I was young, with mixed success. A bit more skilled now with many years under my belt, but still consider myself just "fair". I would really defer to people on the fringes of our club who are real masters: George Zmuda, Dan Wilson, Alan Wolcott. Dan in particular as he builds 1/32. In fact some early issues of Bob's magazine featured articles from Dan on basics of building with brass. Might be worth a look
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Post by Doug Logston on Jun 13, 2022 17:16:47 GMT -7
Interesting thought Dave but I think that you Tom and I are the only ones with those Porsche 911s from that far back. David Doug still has his Porsche. Never used it. That was the year (2007) I had artificial hips installed.
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Post by Steve Burkey on Jun 14, 2022 2:33:04 GMT -7
Still have mine too. It sits on the shelf with the "Vasek Polak Porsche" collection
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Post by Jim Weickum on Jun 15, 2022 9:37:37 GMT -7
I would like to see a class for the NSR Formula 86/89 cars, F1. We ran them in the RMSCC and had good results. We had a track width restriction to prevent the widening of the track, since these cars have aluminum wheels front and back. We used Quick Slicks for tires. Some of us used a wider tire that still fit the stock wheels and met the track width restriction.
Jim W
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Post by Tom Dolan on Jun 16, 2022 19:57:50 GMT -7
How about some more ideas so we can get a poll started. Tom
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Post by Tom Dolan on Jun 20, 2022 12:23:35 GMT -7
We haven't done Trans Am or Can Am in a while, maybe one of them or both. Tom
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Post by amiatanut on Jun 21, 2022 15:40:28 GMT -7
How about 80s Group C racers, ala Porsche 956/962, Jag.XJR##, Mercedes, Mazda, etc from Slot.it. Could make it a mfg class with spec motor/gearing. Just a thought.
Marc »
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Post by Tom Dolan on Jun 23, 2022 20:11:12 GMT -7
Should I start a poll now? Tom
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