"Dan" wrote in message
...
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
I would imagine it's a matter of scale. In theory it would be possible,
I have seen kits for 2 dimensional systems for using oxy-acetylene torches
to cut sheet metal and a home PC. I wonder if such a sytem could be
modified to 3 dimensions. Rigidity of the machinery would require a rather
massive frame. One additional consideration would be dust collection.
I wonder if the system could also be used to finish the part after
layup.
A creative mind would be able make some amazing shapes.
Dan, U.S. Air Force, retired
Here is a starting point :-)
http://www.instructables.com/id/How-...-Cheaply-and-/
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