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fredvance
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« on: April 04, 2010, 09:55:02 AM » |
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Need some tips on drilling my new lexan windshield.
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WORLDS FASTEST PRODUCTION MOTORCYCLE 213.470
Vance&Forstall Racing
All 9 SCTA 1350 NA records
WOS 2011 235+MPH
Engine by Knecum, Tuned by Johnny Cheese.
Sponsers Catalyst Composites, Johnny Cheese Perf, Knecum Racing Engines, Murray Headers, Carpenter Racing
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Tzoom
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All revved up with no place to go - Meatloaf 1977
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« Reply #1 on: April 04, 2010, 10:09:05 AM » |
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Auto racing, bull fighting, and mountain climbing are the only real sports ... all others are games --- Ernest Hemingway
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Gwillard
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« Reply #2 on: April 04, 2010, 10:35:51 AM » |
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Go to http://www.eaa.org/homebuilders/ and click on "Video Tutorials", located in the menu on the left side of the page. There is one about drilling plexiglass and another fitting and installing a canopy. |
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Will weld for beer  |
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4-barrel Mike
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Any fool can drive a V8
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« Reply #3 on: April 04, 2010, 10:36:19 AM » |
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Mike Kelly - PROUD owner of the V4F that powered the #1931 VGC to a 82.803 mph record in 2008!
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RichFox
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« Reply #4 on: April 04, 2010, 11:13:46 AM » |
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I never had any trouble drilling Lexan like you do drilling Plexyglass, but just to be safe I alwayd use center drills which do not catch and spin through. They will drill a clean hole in Plexy also.
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Rcktscientist
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« Reply #5 on: April 04, 2010, 11:32:22 AM » |
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Aircraft Spruce carries Lexan/Plexiglass drills, I've had good success with these. After a hand deburr I dip a Q-Tip in MEK and coat the hole well. Have had no cracking issues. I also use MEK around the entire perimeter.
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Stan Back
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« Reply #6 on: April 04, 2010, 11:38:22 AM » |
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MEK?
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Member of the San Berdoo Roadsters – California's most-exclusive roadster club.
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desotoman
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Temple's "Got'Cha"
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« Reply #7 on: April 04, 2010, 11:57:30 AM » |
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MEK?
methyl ethyl ketone. Tom G |
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"Got'Cha" was first run in 1974. Bill Temple entered both 2 clubs in 1976 with records in AA/BGR. At El Mirage 201.79 and Bonneville at 220.
In 1977 Greg Temple started driving "Got'Cha" and entered the El Mirage Dirty 2 club in 1979 @ 201.97. Greg went on to set two records at Bonneville, one in 1981 at 241.848, then in 1991 he set another record at 262.230
Bill and Greg were the first father and son to enter the El Mirage Dirty 2 club. They broke the D/BFR at Bonneville in 1981 @ 241 with top speed of 249. This record still stands today. In 1991 they set the A/BFR @ 262 which was later broke by Duane McKinney.
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Stan Back
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« Reply #8 on: April 04, 2010, 12:59:23 PM » |
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Thanx,
I remember her from junior high.
Stan
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Member of the San Berdoo Roadsters – California's most-exclusive roadster club.
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Seldom Seen Slim
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Nancy -- 201.913 mph record on a production ZX15!
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« Reply #9 on: April 04, 2010, 03:59:34 PM » |
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Yeah, I think I knew her, too. Wasn't she the original "good time that was had by all"?
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Jon E. Wennerberg
a/k/a Seldom Seen Slim
Skandia, Michigan
(that's way up north)
2 Club member x2
Owner of landracing.com
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CruZer
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« Reply #10 on: April 04, 2010, 06:42:24 PM » |
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MEK?
methyl ethyl ketone. Tom G Methylene Chloride (a known carcinogen) is a good bonding agent for assembling Lexan(R) if you can get it, but for drilling and assembling Lexan any sharp metal drill will work fine. Make the hole slightly oversize and use a flat washer on each side to keep it from cracking due to vibration or chemical attack whether you use a rivet or screws and nuts in assembly. |
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Speed Limit 1000
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« Reply #11 on: April 04, 2010, 06:58:04 PM » |
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A sharp unibit works well. Baby oil is a good lube for drilling and taping Lexan. Plastic washers help also. Lexan is polycarbonate not acrylic. Acrylic will crack, you can bend polycarbonate like aluminum. Brake clean and other petroleum products will kill it.
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jgowetski red hat @ 221.183 MPH MSA Lakester, Bockscar #1000 60 ci normally aspirated w/N20
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Glen
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SCTA/BNI timer 1983 to 2004,Semi Retired,.
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« Reply #12 on: April 04, 2010, 07:18:05 PM » |
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Like Rich says, use a small center drill, they work great and don't be in a hurry.
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Glen  South West, Utah |
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fredvance
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« Reply #13 on: April 04, 2010, 09:13:19 PM » |
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Thanks everybody I appreciate your input.
Fred
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WORLDS FASTEST PRODUCTION MOTORCYCLE 213.470
Vance&Forstall Racing
All 9 SCTA 1350 NA records
WOS 2011 235+MPH
Engine by Knecum, Tuned by Johnny Cheese.
Sponsers Catalyst Composites, Johnny Cheese Perf, Knecum Racing Engines, Murray Headers, Carpenter Racing
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robfrey
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« Reply #14 on: April 05, 2010, 10:02:12 AM » |
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You just need to grind some reverse rake on your drill bit so that it is more of a scraping action and won't grab and crack the plastic.
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6363 A/BG ALT
carbiniteracing.com
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