the Great 2017 Knob group buy, All knobs are shipped! THANK YOU! |
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the Great 2017 Knob group buy, All knobs are shipped! THANK YOU! |
VaccaRabite |
Sep 7 2017, 06:29 PM
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#1
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En Garde! Group: Admin Posts: 13,432 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
These knobs.
(IMG:http://www.914world.com/bbs2/uploads_offsite/farm3.staticflickr.com-1435-1329613649.1.jpg) Looks like the last time I opened the group buy was spring of 2014 Details: Cost will be $75, which includes shipping in the CONUS. If you live outside the CONUS we will work something out. I'll probably end up making 20-30 knobs and that may be it for a few years. Knobs are about 50mm in diameter. They all all 100% hand made, by me, here in York PA. Here is how it works.
The knobs are very light weight, and attach to your car with the standard crush ring. If you have a threaded shifter lever, I can do a spin on if you tell me. I make each knob to order, and your name on the list is the order I make them. I try to turn them around as quick as I can, but each one takes a solid weekend to do, from the first turns on the lathe to the last buff on the buffing wheel. UPDATE 9/8/17 - Enough interest shown to order materials, so today I ordered materials. Should be able to start making the blanks in about 10 days. UPDATE 9/10/17 - the first run will be 18 knobs. If more people want in I'll add you to the wait list. If enough people warrent a second run this fall, I'll make it. Likewise, if people move out of the first run for some reason, the wait list will move in and take their slot. The Queue: 1 mepstein - rennshifter - PAID 2 mepstein - ? - PAID 3 bigkensteele - stock - PM received - PAID 4 markhoward - rennshifter PM received - PAID 5 markhoward - rennshifter PM received - PAID 6 Rleog - stock - PM received - PAID 7 nditiz1 -stock - PAID 8 Freezin 914 - stock - PM received - PAID 9 ConeDodger - renshifter - PAID 10 echocanyons - rennshifter - PAID 11 wes - rennshifter - PM received - PAID 12 somd914 - stock - PM received - PAID 13 somd914 - stock - PM received - PAID 14 Java2570 - stock - PM received - PAID 15 Steve - Renn - PM received - PAID 16 11tentths - renn - PM received -PAID 17 dlee6204 - stock - PM received - PAID 18 Eddie 914 - ? -PM received Second Run! 19 Jett - stock - PM received - PAID 20 wysri9 - stock -- PAID 21 SKL1 -renn - PM received -PAID 22 SKL1 -renn - PM received -PAID 23 mepstein - rennshifter - PAID 24 KeithVonLaws - Ren 25 KeithVonLaws -stock 26 bahnzai - stock - PAID 27 bahnzai -renn - PAID 28 Cracker -Stock -PM received - PAID 29 zaballosc - renn 30 abes914 - stock - PAID |
wysri9 |
Sep 24 2017, 01:27 AM
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#2
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Member Group: Members Posts: 199 Joined: 23-August 13 From: Aberdeen, Scotland Member No.: 16,291 Region Association: England |
Pictures are brilliant, but I guess being an engineer I would like to know full specs as well so that when the guy who has just had full details of my engine build also asks about that wonderful gear knob....
How about wood species, laminate thickness, glue type, blank size, turning time, polish time, polish, lacquer and anything else that you can think of that does not reveal anything proprietary! (IMG:style_emoticons/default/beerchug.gif) |
VaccaRabite |
Sep 24 2017, 09:47 AM
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#3
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En Garde! Group: Admin Posts: 13,432 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
Pictures are brilliant, but I guess being an engineer I would like to know full specs as well so that when the guy who has just had full details of my engine build also asks about that wonderful gear knob.... How about wood species, laminate thickness, glue type, blank size, turning time, polish time, polish, lacquer and anything else that you can think of that does not reveal anything proprietary! (IMG:style_emoticons/default/beerchug.gif) Sure. I've always held that this is something I do for the community here, and if people want to make their own, I'm all for it. For this run the species is maple and american walnut. In the past I have used maple and mahogany. Both work, but the walnut was a little darker this time so that's what I bought. Wood being wood, there can be a LOT of variation. I use 5 layers of 1/4 inch walnut, and 4 layers of 1/8 inch maple. They are glued up with Titebond 3, which is a very strong indoor/outdoor wood glue with pretty good resistance to water. I make a bushing out of 1 inch round delrin rod. This supports the pressure of the crush ring. If you just used wood, the crush ring would split the knob. The bushing is epoxied into the base of the blank, and also serves as the attachment to my lathe. After turning and sanding, each knob gets "a bunch" of coats of tung oil. About 8-10. When those have dried, they get polished on the buffer, and a stiff coat of wax is applied. And that's it. It takes me about 3 hours to prep and make the block and cut the blanks out (not counting the dry time for the glue). A couple hours to batch the delrin into the bushings I need. Maybe an hour per knob to turn and sand. And about a day spent oiling and buffing. Its important to point out here that this is WAY DIFFERENT from the race knobs made by Porsche in the 60s and 70s. Those were literally made of birch plywood. They were generally not finished beyond sanding, and were glued on to the shifter levers. The metal shifter rods apparently conducted a good bit of heat from the engine and the wood knobs insulated the drivers hands. They were also very VERY lightweight (as are mine). There is a myth that the factory race knobs were made of balsa. My research has not born this out. Everything that I have found points to the birch plywood, which makes a lot more sense the laminated balsa. Zach |
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