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Post by Aurora on Sept 24, 2018 11:43:52 GMT -5
This is a representation of the 1961 Lotus 20 Formula Junior. It's a rework of the Scalextric C67 Lotus Formula Junior.
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Post by f143 on Sept 24, 2018 20:20:24 GMT -5
Good to see you have been busy again Matt, lovely work as usual and with the FJ as a base. Thanks for showing. Regards Nigel
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Post by Aurora on Sept 25, 2018 4:52:54 GMT -5
Thanks Nigel, was away from the workbench for a few years, it is good to be back. I think I'm limited to 2 or 3 pics per post, so I'll make a few separate posts showing some construction steps. Matt The original car. I wish I could say that it had a vintage charm, but that would probably be stretching things. I started this 7 years ago but got frustrated trying to make the wobbly web inserts, so into the parts bin it went.
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Post by Aurora on Sept 25, 2018 5:37:06 GMT -5
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Post by Aurora on Sept 25, 2018 5:39:39 GMT -5
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Post by Aurora on Sept 25, 2018 6:00:46 GMT -5
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Post by munter on Sept 25, 2018 13:33:39 GMT -5
Hello Matt, what diameter wobbly do you need? I may have something suitable here. Using a rim similar to your yellow rim I will see what works after work today.
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Post by Aurora on Sept 25, 2018 19:51:27 GMT -5
John, this must be the second or third time that you've kindly offered to provide a service or hard-to-make part. And once again, I am too late to take you up on the offer, as I've already installed my scratch built inserts on the car. I really need to pay closer attention to what you are doing down there... before I finish a car! Aside from your resin bodies, do you have a list of the parts that you produce? I see that there may be a new proxy race coming up, so maybe I can plan ahead for a change and get some quality parts.
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Post by munter on Sept 25, 2018 23:54:15 GMT -5
Hi Matt, I checked my wobbly selection and only have two diameters...0.450'and 0.375"...plenty of the larger ones but will need to cast some more of the smaller ones....my list is ever changing and at this stage is non existant so best to just chance it if you do need something.
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Post by f143 on Sept 26, 2018 8:10:44 GMT -5
Matt it may not have had vintage charm, but it did end up looking cool and as for building I have moved house and it has taken some time in the changeover so beginning next year I may have a track up and running and maybe back to building or modifying to some extent, until then I rely on seeing other peoples endeavours on this site and there hasn't been much going on of late, so thanks again for showing and putting in the effort. Regards Nigel
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Post by Aurora on Sept 27, 2018 4:16:49 GMT -5
Hi Matt, I checked my wobbly selection and only have two diameters...0.450'and 0.375"...plenty of the larger ones but will need to cast some more of the smaller ones....my list is ever changing and at this stage is non existant so best to just chance it if you do need something. John, I measured the inner rim face diameter of the yellow FJ wheels at about 0.406". Does that jibe with your result? I would imagine that the smaller of your two wobbly web inserts would be the safer choice. The larger size would possibly require trimming that would intrude upon the surface features. These are my inserts. Four wobbles in the front and six wobbles in the back. Most of the Lotus 20's I've seen in photographs incorporate this arrangement. Do you offer both types?
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Post by Aurora on Sept 27, 2018 4:30:54 GMT -5
Matt it may not have had vintage charm, but it did end up looking cool and as for building I have moved house and it has taken some time in the changeover so beginning next year I may have a track up and running and maybe back to building or modifying to some extent, until then I rely on seeing other peoples endeavours on this site and there hasn't been much going on of late, so thanks again for showing and putting in the effort. Regards Nigel Hi Nigel, we not only end up on the same Proxy race teams - Honda and BRM - but we move houses at the same time too. I recently moved and all my tools and supplies were packed away or lost altogether. Lost all my scratch build parts and supplies - motors, brackets, wheels, tires, metal stock, tooling board, details parts, decals, hardware, etc. Slowly starting over, but the loss was irritating because a lot of those items are things I can't make myself. This board does seem quiet, but I haven't been doing much to help, so this new project thread is an attempt to be more involved. Always fun to get on board. Matt
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Post by slo on Sept 27, 2018 5:51:50 GMT -5
Lovely little build Matt, good to see one of your builds again! would love to see the chassis. Loosing your scratch parts and tools one comes to rely on is not a good thing. Anything you needing in particular? Im intrigued with your endeavors into the silver brazing. What heat source, solder and flux are you using and on what surface?
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Post by Aurora on Sept 27, 2018 9:17:04 GMT -5
Hi Stu, thanks for the encouragement, it is good to work on cars again after some time away. This car is essentially a modified Scalextric Lotus Formula Junior. I kept the original layout and running gear, so it doesn't have a chassis per se. The motor, guide, axles, etc. clip into the body shell. I needed to modify these mounting points to accommodate the modifications I made. BTW, I did clear this with the top floor. I wasn't sure if it qualified as a scratch built, being based upon the Scalextric car. But after some well practiced begging, permission was granted to post this car here. It actually ended up being more work trying to make everything fit, than if I had just built a new chassis. But I like these old vintage cars and wanted to retain the vintage layout and running gear. I don't know why but I have a soft spot for the ancient open frame motor in these things. I did lose some tools and supplies. That's another reason why I modified this car, which already possessed complete running gear, instead of making an entirely new car with a separate scratch built chassis. For supplies, I don't know what I may need at the particular moment as I'm not sure what I'll build next. With the possibility of a new 1930's proxy being discussed on the forum, maybe I will enter and get some ideas. Fortunately I've been able to replace many tools. Still a ways to go yet, but I can work around a lot of the difficulties that can arise from lacking the perfect tool. The brazing experiments are enjoyable. I've tried brazing stainless steel welding rod, stainless steel wire, nickel plated stainless steel, regular steel wire (whatever that is), aluminum bronze, copper welding rod, copper wire, various brasses, and some other materials that I'm not sure of. Lots of failures with a few successes. I use a torch for probably 90% of my soldering work. I lost my old pen torch so purchased a new Dremel Versa Flame Model 2200 butane mini torch. The results have been mixed. The smallest flame that it puts out is larger than I would like. Dremel does make a pen torch but the store was out of stock when I went to purchase. I had hoped that the flame size would be adjustable to a very small small flame tip like my old pen torch did, but it doesn't go that small. So it is very tricky to isolate the heat into the small area where I want it. I've been trying to obtain a material called Thermo-Gel to protect the surrounding areas from excessive heat, but no luck yet. For filler material, I've been experimenting with several types. Unfortunately I can't say with any certainty as to what these filler materials are, as I have a difficult time communicating with the shop where I purchased them. It's a bit amusing - I pick up various raw materials, chemicals, etc. in the shop and ask the staff in my atrocious Thai if I can do this. Or that. Enthusiastic assurances always follow. For all I know, I'm asking them if I can eat the stuff. For flux, I've been using Stay-Silv White Brazing Flux. It seems ok. It does bubble up quite a bit, which can displace very small pallets of filler, so I need to apply it sparingly to the joint. I purchased a proper soldering board from a jewelers supply. Same thing as with the unknown filler materials - I'm not sure what the board is made of, but it works well. It's a heavy, hard white board, sorta like unglazed ceramic. Soldering and brazing is a process that I'd like to see more info from others on this board. There's a lot of fine work here, and I'm always curious as to how people are doing it. Matt
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Post by old23 on Sept 27, 2018 18:53:41 GMT -5
Matt, it is so good to see that you are active again. I fondly remember your beautiful Stebro and Moskvich entries in the VRAA. The Lotus 20 FJ (and Cooper-BMC FJ) were my very first slot cars included in the Scalextric set I received for Christmas 1964. I still have them, though the motors have long since expired. Excellent work, my friend.
Stewart
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