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The PEST project - completed.
Hi,
I've been working on an electrically powered slug thrower that makes the best use of available battery power. It is finally done. It operates like a "centrifuge" gun and can launch 5/16" (7.9mm) diameter delrin spheres at 460 ft/sec (140 m/s). The launcher can fire single shots, 3 shot bursts or full auto (5 shots per second). The magazine capacity is 50 shots. It is powered with a 7 cell NiCd pack. I call it a "PEST" or Portable Electromechanical Slug Thrower. :) Please see the webpage: http://www.geocities.com/pest3125 - Please try later if the site goes down due to bandwidth limits The photo album is at: http://photos.yahoo.com/pest3125 All parts were made on a Sherline tabletop milling machine. |
The PEST project - completed.
On 11 Oct 2005 09:55:57 -0700, wrote:
Hi, I've been working on an electrically powered slug thrower that makes the best use of available battery power. It is finally done. It operates like a "centrifuge" gun and can launch 5/16" (7.9mm) diameter delrin spheres at 460 ft/sec (140 m/s). The launcher can fire single shots, 3 shot bursts or full auto (5 shots per second). The magazine capacity is 50 shots. It is powered with a 7 cell NiCd pack. I call it a "PEST" or Portable Electromechanical Slug Thrower. :) Please see the webpage: http://www.geocities.com/pest3125 - Please try later if the site goes down due to bandwidth limits The photo album is at: http://photos.yahoo.com/pest3125 All parts were made on a Sherline tabletop milling machine. How well does it work with ball bearings? Gunner, going to check the link Confronting Liberals with the facts of reality is very much akin to clubbing baby seals. It gets boring after a while, but because Liberals are so stupid it is easy work." Steven M. Barry |
The PEST project - completed.
#How well does it work with ball bearings?
The mechanism is currently made of mild steel and firing steel balls results in severe erosion. The edges of the track will loook 'smeared' and rounded after firing the bearings (thats a lot of force!). It needs to be made of hardened steel for ball bearings to work well. |
The PEST project - completed.
On Tue, 11 Oct 2005 10:17:09 -0700, Tim Wescott
wrote: snip Coming from Oregon I have to express my disappointment when I realized it does not throw shell-less mollusks -- now _that_ would be a worthy invention! hehe. We *do* have a number of them! We also have some with tiny shells on tacked like a bit of rock on the tip of their tails. I've seen them, pale white albino-looking that live under rocks and actually feed on worms. These are _NOT_ snails, by the way. I had quite an argument with one of the professors at Portland State about what I was looking at, until I brought in a box of them for him to take a look at -- he insisted that they were snails until he saw them for himself. Then dead quiet while he looked. He then referred me to another professor in Arizona who specialized in such things and I finally got the information then that these were very rare, but already-known slugs which do eat worms. We called them "slug monsters" because these would be the monsters that worm mothers would tell their kids about, if they weren't being nice. Jon |
The PEST project - completed.
I read in sci.electronics.design that Jonathan Kirwan
wrote (in ) about 'The PEST project - completed.', on Tue, 11 Oct 2005: We also have some with tiny shells on tacked like a bit of rock on the tip of their tails. In Britain, we have very large yellow ones that have vestigial shells. I use to walk along a path after dark, where they were wall-to-wall if it was, or had been, raining. Like treading on squishy ice. Yeuk! -- Regards, John Woodgate, OOO - Own Opinions Only. If everything has been designed, a god designed evolution by natural selection. http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk |
The PEST project - completed.
I read in sci.electronics.design that pest3125
wrote (in . com) about 'The PEST project - completed.', on Tue, 11 Oct 2005: It needs to be made of hardened steel for ball bearings to work well. Try aluminium with a smear of oil. It's a little-known fact that Al/hard steel is a non-wearing combination. See Austin 7 crankshaft main bearings. Ball and roller races directly inserted in an Al casting(;-) -- Regards, John Woodgate, OOO - Own Opinions Only. If everything has been designed, a god designed evolution by natural selection. http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk |
The PEST project - completed.
John Woodgate wrote:
I read in sci.electronics.design that pest3125 wrote (in . com) about 'The PEST project - completed.', on Tue, 11 Oct 2005: It needs to be made of hardened steel for ball bearings to work well. Try aluminium with a smear of oil. It's a little-known fact that Al/hard steel is a non-wearing combination. See Austin 7 crankshaft main bearings. Ball and roller races directly inserted in an Al casting(;-) That will only be true if the balls aren't smacking into the rails with enough force to punch through the film strength of the oil. In this case they're probably hitting hard enough to deform aluminum directly, I'd guess. But yes, steel on aluminum makes a decent bearing with the right lubrication -- take the Cox 0.049 engines as an example. -- Tim Wescott Wescott Design Services http://www.wescottdesign.com |
The PEST project - completed.
John Woodgate wrote:
I read in sci.electronics.design that pest3125 wrote (in . com) about 'The PEST project - completed.', on Tue, 11 Oct 2005: It needs to be made of hardened steel for ball bearings to work well. Try aluminium with a smear of oil. It's a little-known fact that Al/hard steel is a non-wearing combination. See Austin 7 crankshaft main bearings. Ball and roller races directly inserted in an Al casting(;-) Depends on the load, hardness of the AL and lubrication. I'd suspect that the impact would peen the AL badly. |
The PEST project - completed.
Jim Stewart wrote:
Depends on the load, hardness of the AL and lubrication. I'd suspect that the impact would peen the AL badly. What about Al balls on a steel track and a film forming lube - MoS2? Ted |
The PEST project - completed.
wrote:
I've been working on an electrically powered slug thrower that makes the best use of available battery power. Fine! But ... and ... ummm ... ah yes ... no ... or ... gotit ... errr .... OK, the slugs are out of your garden, and then? Nick -- Motor Modelle // Engine Models http://www.motor-manufaktur.de |
The PEST project - completed.
On Tue, 11 Oct 2005 19:18:34 +0100, John Woodgate wrote:
I read in sci.electronics.design that Jonathan Kirwan wrote (in ) about 'The PEST project - completed.', on Tue, 11 Oct 2005: We also have some with tiny shells on tacked like a bit of rock on the tip of their tails. In Britain, we have very large yellow ones that have vestigial shells. I use to walk along a path after dark, where they were wall-to-wall if it was, or had been, raining. Like treading on squishy ice. Yeuk! They used to get in under the crack of my back door into the kitchen at night. You haven't fully experienced life's lowest ebb until you have stepped barefoot on a cold slimy slug in the dark at 3 in the morning. Bob |
The PEST project - completed.
Unfortunately, aluminum balls are rather expensive.
The track and rotor were brushed with Dri-Slide (a graphite and moly based lube). |
The PEST project - completed.
I live in Central Oregon and NO slugs. Came from Issaquah, WA in 1998
and the daily record for shooting slugs with carb cleaner was about 1800. Perhaps it was more. I was also very disappointed to learn it was not a slug tossing machine, but a slug tossing mchine. Paul |
The PEST project - completed.
wrote:
I live in Central Oregon and NO slugs. Came from Issaquah, WA in 1998 and the daily record for shooting slugs with carb cleaner was about 1800. Perhaps it was more. I was also very disappointed to learn it was not a slug tossing machine, but a slug tossing mchine. Paul Sorry, once again someone west of the Cascades has forgotten about the rest of Oregon. -- Tim Wescott Wescott Design Services http://www.wescottdesign.com |
The PEST project - completed.
On 11 Oct 2005 09:55:57 -0700, wrote:
Hi, I've been working on an electrically powered slug thrower that makes the best use of available battery power. It is finally done. It operates like a "centrifuge" gun and can launch 5/16" (7.9mm) diameter delrin spheres at 460 ft/sec (140 m/s). The launcher can fire single shots, 3 shot bursts or full auto (5 shots per second). The magazine capacity is 50 shots. It is powered with a 7 cell NiCd pack. I call it a "PEST" or Portable Electromechanical Slug Thrower. :) Please see the webpage: http://www.geocities.com/pest3125 - Please try later if the site goes down due to bandwidth limits The photo album is at: http://photos.yahoo.com/pest3125 All parts were made on a Sherline tabletop milling machine. Neat!!! |
The PEST project - completed.
On Tue, 11 Oct 2005 13:41:30 -0700, Tim Wescott
wrote: wrote: I live in Central Oregon and NO slugs. Came from Issaquah, WA in 1998 and the daily record for shooting slugs with carb cleaner was about 1800. Perhaps it was more. I was also very disappointed to learn it was not a slug tossing machine, but a slug tossing mchine. Paul Sorry, once again someone west of the Cascades has forgotten about the rest of Oregon. What's west of the Cascades? ;) Jon P.S. Yeah, pumice is kind of hard on slugs. |
The PEST project - completed.
On Tue, 11 Oct 2005 21:11:55 GMT, Jonathan Kirwan
wrote: What's west of the Cascades? ;) ^^^^ Sorry, I meant _east_!! |
The PEST project - completed.
I read in sci.electronics.design that Bob Stephens
wrote (in ) about 'The PEST project - completed.', on Tue, 11 Oct 2005: They used to get in under the crack of my back door into the kitchen at night. You haven't fully experienced life's lowest ebb until you have stepped barefoot on a cold slimy slug in the dark at 3 in the morning. They're trying to raid the fridge. Put a saucer of beer outside for them. They won't bother to come inside. To be really gross, put a teaspoonful of salt on one. Honey, I shrunk the slug! -- Regards, John Woodgate, OOO - Own Opinions Only. If everything has been designed, a god designed evolution by natural selection. http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk |
The PEST project - completed.
On 11 Oct 2005 09:55:57 -0700, with neither quill nor qualm,
quickly quoth: Hi, I've been working on an electrically powered slug thrower that makes the best use of available battery power. It is finally done. It operates like a "centrifuge" gun and can launch 5/16" (7.9mm) diameter delrin spheres at 460 ft/sec (140 m/s). The launcher can fire single shots, 3 shot bursts or full auto (5 shots per second). The magazine capacity is 50 shots. It is powered with a 7 cell NiCd pack. I call it a "PEST" or Portable Electromechanical Slug Thrower. :) Will it throw snails, too? g ---------------------------------------------------------------------- * Scattered Showers My Ass! * Insightful Advertising Copy * --Noah * http://www.diversify.com ---------------------------------------------------------------------- |
The PEST project - completed.
On 11 Oct 2005 13:20:57 -0700, "pest3125" wrote:
Unfortunately, aluminum balls are rather expensive. The track and rotor were brushed with Dri-Slide (a graphite and moly based lube). And Aluminum balls wont go fast enough for any decent range. When you can get it to penetrate a 2x4 at 50 yrds.............................. Gunner "Pax Americana is a philosophy. Hardly an empire. Making sure other people play nice and dont kill each other (and us) off in job lots is hardly empire building, particularly when you give them self determination under "play nice" rules. Think of it as having your older brother knock the **** out of you for torturing the cat." Gunner |
The PEST project - completed.
Jonathan Kirwan wrote:
What's west of the Cascades? ;) The Wet Coast. Ted |
The PEST project - completed.
In article . com,
wrote: Hi, I've been working on an electrically powered slug thrower that makes the best use of available battery power. It is finally done. It operates like a "centrifuge" gun and can launch 5/16" (7.9mm) diameter delrin spheres at 460 ft/sec (140 m/s). The launcher can fire single shots, 3 shot bursts or full auto (5 shots per second). The magazine capacity is 50 shots. It is powered with a 7 cell NiCd pack. I call it a "PEST" or Portable Electromechanical Slug Thrower. :) Please see the webpage: http://www.geocities.com/pest3125 - Please try later if the site goes down due to bandwidth limits The photo album is at: http://photos.yahoo.com/pest3125 All parts were made on a Sherline tabletop milling machine. I like most people thought this was some form of pest launcher(to remove pests from the garden) out here we have banana slugs which are about 6" long. stepped upon they actually pop, and are everywhere eating flowers. perhaps there is some way of adopting your idea to propel these pests good and far(exploding ammuntion thats free:)) that aside, you've built one awesome launcher, I'm tempted to experiment and see if my 14"dia dust collector impeller could do something similar with golf balls. the boxy shape looks quite interesting. -- All they do is slap some lipstick on and try to pretend it's not a pig. Peter H. Proctor this couple is gets attacked by... uh... *grabs lamp* a lamp monster! *waves lamp around* Woooooooooo!" -Delta Nine |
The PEST project - completed.
On Wed, 12 Oct 2005 19:30:42 GMT, with neither quill nor qualm, Ted
Edwards quickly quoth: Jonathan Kirwan wrote: What's west of the Cascades? ;) The Wet Coast. AND the relatively dry Rogue Valley, where I live. I used to get all sorts of crap from the Coasties in Carlsbad when I lived in Vista, 7 miles inland and "East of I-5". Yup, I got no respect. ---------------------------------------------------------------------- * Scattered Showers My Ass! * Insightful Advertising Copy * --Noah * http://www.diversify.com ---------------------------------------------------------------------- |
The PEST project - completed.
Reyd wrote:
I like most people thought this was some form of pest launcher(to remove pests from the garden) out here we have banana slugs which are about 6" long. stepped upon they actually pop, and are everywhere eating flowers. perhaps there is some way of adopting your idea to propel these pests good and far(exploding ammuntion thats free:)) that aside, you've built one awesome launcher, I'm tempted to experiment and see if my 14"dia dust collector impeller could do something similar with golf balls. the boxy shape looks quite interesting. There are some large yellowish spiders around here called "Banana Spiders". they are strange looking, and build large webs all over the place. -- ? Michael A. Terrell Central Florida |
The PEST project - completed.
And one of my faves is the Slug Cookbook....
There may be a side-recipe for marbled murrelet under glass, but I'm not sure. /mark Reyd wrote: In article . com, wrote: Hi, I've been working on an electrically powered slug thrower that makes the best use of available battery power. It is finally done. It operates like a "centrifuge" gun and can launch 5/16" (7.9mm) diameter delrin spheres at 460 ft/sec (140 m/s). The launcher can fire single shots, 3 shot bursts or full auto (5 shots per second). The magazine capacity is 50 shots. It is powered with a 7 cell NiCd pack. I call it a "PEST" or Portable Electromechanical Slug Thrower. :) Please see the webpage: http://www.geocities.com/pest3125 - Please try later if the site goes down due to bandwidth limits The photo album is at: http://photos.yahoo.com/pest3125 All parts were made on a Sherline tabletop milling machine. I like most people thought this was some form of pest launcher(to remove pests from the garden) out here we have banana slugs which are about 6" long. stepped upon they actually pop, and are everywhere eating flowers. perhaps there is some way of adopting your idea to propel these pests good and far(exploding ammuntion thats free:)) that aside, you've built one awesome launcher, I'm tempted to experiment and see if my 14"dia dust collector impeller could do something similar with golf balls. the boxy shape looks quite interesting. |
The PEST project - completed.
On Thu, 13 Oct 2005 00:21:24 +0000, Reyd wrote:
In article . com, wrote: Hi, I've been working on an electrically powered slug thrower .... I like most people thought this was some form of pest launcher(to remove pests from the garden) out here we have banana slugs which are about 6" long. Are they good eatin'? Imagine! 6" escargot without the bother of shells! .... the boxy shape looks quite interesting. It's KEWL, dewd! Like a long Uzi. ;-) -- Cheers! Rich ------ "Life is not a cabaret. It's a ****ing circus." |
The PEST project - completed.
On Thu, 13 Oct 2005 02:27:42 +0000, Michael A. Terrell wrote:
Reyd wrote: I like most people thought this was some form of pest launcher(to remove pests from the garden) out here we have banana slugs which are about 6" long. stepped upon they actually pop, and are everywhere eating flowers. perhaps there is some way of adopting your idea to propel these pests good and far(exploding ammuntion thats free:)) that aside, you've built one awesome launcher, I'm tempted to experiment and see if my 14"dia dust collector impeller could do something similar with golf balls. the boxy shape looks quite interesting. There are some large yellowish spiders around here called "Banana Spiders". they are strange looking, and build large webs all over the place. I've heard that there are no spiders that eat bananas that are venomous. ;-D -- Cheers! Rich ------ "Due to a mixup in urology, orange juice will not be served this morning." |
The PEST project - completed.
Rich the Newsgroup Wacko wrote:
On Thu, 13 Oct 2005 02:27:42 +0000, Michael A. Terrell wrote: Reyd wrote: I like most people thought this was some form of pest launcher(to remove pests from the garden) out here we have banana slugs which are about 6" long. stepped upon they actually pop, and are everywhere eating flowers. perhaps there is some way of adopting your idea to propel these pests good and far(exploding ammuntion thats free:)) that aside, you've built one awesome launcher, I'm tempted to experiment and see if my 14"dia dust collector impeller could do something similar with golf balls. the boxy shape looks quite interesting. There are some large yellowish spiders around here called "Banana Spiders". they are strange looking, and build large webs all over the place. I've heard that there are no spiders that eat bananas that are venomous. Where do you find venomous bananas? Mark L. Fergerson |
The PEST project - completed.
I read in sci.electronics.design that Mark Fergerson
wrote (in 4UQ3f.1715$UF4.911@fed1read02) about 'The PEST project - completed.', on Fri, 14 Oct 2005: Rich the Newsgroup Wacko wrote: On Thu, 13 Oct 2005 02:27:42 +0000, Michael A. Terrell wrote: Reyd wrote: I like most people thought this was some form of pest launcher(to remove pests from the garden) out here we have banana slugs which are about 6" long. stepped upon they actually pop, and are everywhere eating flowers. perhaps there is some way of adopting your idea to propel these pests good and far(exploding ammuntion thats free:)) that aside, you've built one awesome launcher, I'm tempted to experiment and see if my 14"dia dust collector impeller could do something similar with golf balls. the boxy shape looks quite interesting. There are some large yellowish spiders around here called "Banana Spiders". they are strange looking, and build large webs all over the place. I've heard that there are no spiders that eat bananas that are venomous. Where do you find venomous bananas? I think that's the joke, but I'm not sure that there aren't varieties of banana that will at least give you a nasty pain. These yellow things ('figs') are only one of many types that you can get in the Caribbean islands, I believe. Some are inedible until cooked. -- Regards, John Woodgate, OOO - Own Opinions Only. If everything has been designed, a god designed evolution by natural selection. http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk |
The PEST project - completed.
On Fri, 14 Oct 2005 17:45:15 +0100, the renowned John Woodgate
wrote: I read in sci.electronics.design that Mark Fergerson wrote (in 4UQ3f.1715$UF4.911@fed1read02) about 'The PEST project - completed.', on Fri, 14 Oct 2005: Rich the Newsgroup Wacko wrote: On Thu, 13 Oct 2005 02:27:42 +0000, Michael A. Terrell wrote: Reyd wrote: I like most people thought this was some form of pest launcher(to remove pests from the garden) out here we have banana slugs which are about 6" long. stepped upon they actually pop, and are everywhere eating flowers. perhaps there is some way of adopting your idea to propel these pests good and far(exploding ammuntion thats free:)) that aside, you've built one awesome launcher, I'm tempted to experiment and see if my 14"dia dust collector impeller could do something similar with golf balls. the boxy shape looks quite interesting. There are some large yellowish spiders around here called "Banana Spiders". they are strange looking, and build large webs all over the place. I've heard that there are no spiders that eat bananas that are venomous. Where do you find venomous bananas? I think that's the joke, but I'm not sure that there aren't varieties of banana that will at least give you a nasty pain. These yellow things ('figs') are only one of many types that you can get in the Caribbean islands, I believe. Some are inedible until cooked. Did you know that Abraham Lincoln wrote the Gettysburg Address while riding from Washington to Pennsylvania on the back of an envelope? Best regards, Spehro Pefhany -- "it's the network..." "The Journey is the reward" Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com |
The PEST project - completed.
I read in sci.electronics.design that Spehro Pefhany
wrote (in ) about 'The PEST project - completed.', on Fri, 14 Oct 2005: Did you know that Abraham Lincoln wrote the Gettysburg Address while riding from Washington to Pennsylvania on the back of an envelope? Well, he was riding post-haste. -- Regards, John Woodgate, OOO - Own Opinions Only. If everything has been designed, a god designed evolution by natural selection. http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk |
The PEST project - completed.
On Fri, 14 Oct 2005 18:25:08 +0100, John Woodgate wrote:
I read in sci.electronics.design that Spehro Pefhany wrote (in ) about 'The PEST project - completed.', on Fri, 14 Oct 2005: Did you know that Abraham Lincoln wrote the Gettysburg Address while riding from Washington to Pennsylvania on the back of an envelope? Well, he was riding post-haste. Lickity split. |
The PEST project - completed.
On Fri, 14 Oct 2005 02:20:21 GMT, with neither quill nor qualm, Rich
the Newsgroup Wacko quickly quoth: On Thu, 13 Oct 2005 02:27:42 +0000, Michael A. Terrell wrote: There are some large yellowish spiders around here called "Banana Spiders". they are strange looking, and build large webs all over the place. I've heard that there are no spiders that eat bananas that are venomous. ;-D I got lucky a few times in my yout after telling the story of the giant, leaping, yellow, banana spiders of Mexico. We lived 50 miles north of the border. Fond memories. Wanna see the scar? g -- The State always moves slowly and grudgingly towards any purpose that accrues to society's advantage, but moves rapidly and with alacrity towards one that accrues to its own advantage; nor does it ever move towards social purposes on its own initiative, but only under heavy pressure, while its motion towards anti-social purposes is self-sprung. - Albert Jay Nock - http://diversify.com Web Programming for curmudgeons and others. - |
The PEST project - completed.
Btw, I have made 2 short videos (~300kB each) of the PEST firing. If
you go to the http://www.geocities.com/pest3125 webpage and click on "Photos", there are 2 links at the bottom of the page where you can download the videos |
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