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#11
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Home machining
Anthony W wrote:
Flash wrote: Lately the signal to noise ratio has gone sour, but rec,crafts.metalworking has been pretty fair, too. Lots of knowledgeable people still there, but an increasing number of cross-posters dump on it, too. Just have to look and ignore some threads, posters. Flash I tried that group for a few day and I found it not worth the insanity... Tony There are about 6 guys that have to be filtered out. Then it gets back to usable... |
#12
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Home machining
Peter Dohm wrote:
Of course, I have kept a list of the above forum locations; and I am curious if anyone happens to know the present cost of setting up that sort of CNC system for the cores in something like a Vari-Eze. Peter Along with Practical Machinist's, and Chaski's Home Machinist, CNC sections, add for homebrew CNC: CNCzone.com http://www.cnczone.com/ A group to monitor, if you are interested in developing a homebrew CNC machine to mill or cut out your next skychaser. The cost depends on your own vision of the machine, the task, and your expected production. |
#13
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Home machining
On Sat, 15 Aug 2009 02:28:40 GMT, Anthony W
wrote: Can anyone recommend a good forum for home machine work? Not the news group, that's a madhouse... Tony Tony you could always post your questions here. there are a few knowledgeable builders here believe it or not. Stealth Pilot |
#14
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Home machining
R wrote:
add for homebrew CNC: CNCzone.com http://www.cnczone.com/ OOPs! link direct to the forums page: http://www.cnczone.com/forums/index.php Homebrew CNC machine's costs are determined by how good you can scrounge. |
#15
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Home machining
"Peter Dohm" wrote in message ... "R" wrote in message ... Anthony W wrote: Can anyone recommend a good forum for home machine work? Not the news group, that's a madhouse... Tony The Home Machinist http://www.chaski.org/homemachinist/ The Home Shop Machinist & Machinist's Workshop BBS http://bbs.homeshopmachinist.net/ If you have some metalworking or machining experience this group has the most expertise. They do not tolerate well inane questions from wannabes. A wealth of knowledge can be gained by, even, lurking here. Practical Machinist http://www.practicalmachinist.com/vb/ Looking at this thread makes me just a little curious whether the relationship of cost and capability may have brought the CNC routing/milling process to make precision foam cores--such as used in the Vari-Eze and its derivatives--within reasonable reach of the home builder. The hot wire method worked reasonably well in its day; but was limited to certain types of foam and also resulted in a slight sag in the shape of the resulting parts. Of course, I have kept a list of the above forum locations; and I am curious if anyone happens to know the present cost of setting up that sort of CNC system for the cores in something like a Vari-Eze. Peter It seems to me it's still about software for inputting the image and generating the G code. There have been home brew stepper systems around for years that would meet the requirements, but software still seems to be the tough part. Seems it's all either too expensive or lacks function. |
#16
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Home machining
Anthony W wrote:
Flash wrote: Lately the signal to noise ratio has gone sour, but rec,crafts.metalworking has been pretty fair, too. Lots of knowledgeable people still there, but an increasing number of cross-posters dump on it, too. Just have to look and ignore some threads, posters. Flash I tried that group for a few day and I found it not worth the insanity... Tony It was quite a few years ago that I mentioned the use of 6061 alloy in aircraft, and was consistently abused and sneered at by some kind of free lance tech writer, for not knowing that 2024 was the ONLY aerospace aluminum alloy then in use. So I gave up on it.... Brian W |
#17
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Home machining
Stealth Pilot wrote:
Tony you could always post your questions here. there are a few knowledgeable builders here believe it or not. Stealth Pilot Actually I do believe it. This is the primary reason I hang out here. Right now I'm looking to undertake a project that will require that I buy a lathe and I my next step is to choose one that is worth the 500 or 600 bucks I can scrape up to pay for it... Tony |
#18
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Home machining
On Aug 15, 7:10*pm, "Peter Dohm" wrote:
"R" wrote in message ... Anthony W wrote: Can anyone recommend a good forum for home machine work? *Not the news group, that's a madhouse... Tony The Home Machinist http://www.chaski.org/homemachinist/ The Home Shop Machinist & Machinist's Workshop BBS http://bbs.homeshopmachinist.net/ If you have some metalworking or machining experience this group has the most expertise. They do not tolerate well inane questions from wannabes.. A wealth of knowledge can be gained by, even, lurking here. *Practical Machinist http://www.practicalmachinist.com/vb/ Looking at this thread makes me just a little curious whether the relationship of cost and capability may have brought the CNC routing/milling process to make precision foam cores--such as used in the Vari-Eze and its derivatives--within reasonable reach of the home builder. *The hot wire method worked reasonably well in its day; but was limited to certain types of foam and also resulted in a slight sag in the shape of the resulting parts. Of course, I have kept a list of the above forum locations; and I am curious if anyone happens to know the present cost of setting up that sort of CNC system for the cores in something like a Vari-Eze. Peter Back in the '80's I was allowed to watch a huge CNC machine at Martin Marietta in Waterton, CO carve a Learjet wing out of an enormous aluminum billet. When finished, it was complete right down to 6-32 tapped holes. I've kicked around a "wing machine" idea for years. My idea was to cut female molds and then build the aircraft using standard wet layup composite techniques. |
#19
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Home machining
On Sun, 16 Aug 2009 17:14:52 GMT, Anthony W
wrote: Stealth Pilot wrote: Tony you could always post your questions here. there are a few knowledgeable builders here believe it or not. Stealth Pilot Actually I do believe it. This is the primary reason I hang out here. Right now I'm looking to undertake a project that will require that I buy a lathe and I my next step is to choose one that is worth the 500 or 600 bucks I can scrape up to pay for it... Tony I'm a lousy dentist. what's the project? Stealth Pilot |
#20
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Home machining
On Sun, 16 Aug 2009 11:52:48 -0500, brian whatcott
wrote: Anthony W wrote: Flash wrote: Lately the signal to noise ratio has gone sour, but rec,crafts.metalworking has been pretty fair, too. Lots of knowledgeable people still there, but an increasing number of cross-posters dump on it, too. Just have to look and ignore some threads, posters. Flash I tried that group for a few day and I found it not worth the insanity... Tony It was quite a few years ago that I mentioned the use of 6061 alloy in aircraft, and was consistently abused and sneered at by some kind of free lance tech writer, for not knowing that 2024 was the ONLY aerospace aluminum alloy then in use. So I gave up on it.... Brian W thats why we like aeroplanes and not aerospace. .....like aerospace is waaaaay out there man. but in aeroplanes we get to play with 3003, 5005, 2011, 6061 and lotsa kool stuff that cant be used in aerospace. hell yesterday I even machined some god awful steel component and made it look pretty. I replaced a worn spinner support in 1214. we have lots more fun in aeroplanes. ....they dont even have propellers in aerospace. how backward is that! I've even got brass nuts I made myself on my aeroplane. but you hafta admit that aerospace has way cooler x-prizes. there is one for a home made space vehicle plonked on the moon with a home made rocket. you hafta remotely drive up to some expensive nasa thingy on the moon and spray graffiti on it. I think thats what the task is... (I think the problems I'm having with my truss fuselage are tipping me over the edge :-) ohhhhhh bugger column bending. why cant you just build things heavy ) Stealth (it looked easy) Pilot |
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