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US steel trade war



 
 
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  #21  
Old March 9th 18, 02:32 PM posted to rec.bicycles.tech
Emanuel Berg[_2_]
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Default US steel trade war

AMuzi wrote:

What do you have handy? A milling machine is
fast if you're making a lot of miters but
a file works just fine for one


I have a big stationary vertical drill if that
is what you mean by "milling machine", so then
it is just a matter of getting the round
saw/drill thing (?) and some sort of
arrangement to fixate the tube?

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  #22  
Old March 9th 18, 02:37 PM posted to rec.bicycles.tech
Emanuel Berg[_2_]
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Default US steel trade war

John B. wrote:

You can set the tube up at the correct angle,
using a vertical milling machine, and cut the
tube end to fit using the proper size end
mill, or hole saw,


OK, end mill/hole saw it is! Great, I'll put it
on the list for next month...

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  #23  
Old March 9th 18, 03:39 PM posted to rec.bicycles.tech
Emanuel Berg[_2_]
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Default US steel trade war

I have a King Bench Drilling Machine KSD-340
from 1983. Looks solid but I have only used it
for drilling, so far.

--
underground experts united
http://user.it.uu.se/~embe8573
  #24  
Old March 9th 18, 03:58 PM posted to rec.bicycles.tech
Emanuel Berg[_2_]
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Posts: 937
Default US steel trade war

I have a King Bench Drilling Machine KSD-340
from 1983. Looks solid but I have only used
it for drilling, so far.


Anyone knows where to look for a manual for
this machine? I Googled but found only newer
models. I printed one anyway as probably most
basic stuff hasn't changed.

--
underground experts united
http://user.it.uu.se/~embe8573
  #25  
Old March 9th 18, 04:24 PM posted to rec.bicycles.tech
AMuzi
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Default US steel trade war

On 3/9/2018 9:58 AM, Emanuel Berg wrote:
I have a King Bench Drilling Machine KSD-340
from 1983. Looks solid but I have only used
it for drilling, so far.


Anyone knows where to look for a manual for
this machine? I Googled but found only newer
models. I printed one anyway as probably most
basic stuff hasn't changed.


https://www.ebay.com/itm/Bridgeport-...AOSwo4pYWtY 9


--
Andrew Muzi
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Open every day since 1 April, 1971


  #26  
Old March 9th 18, 04:51 PM posted to rec.bicycles.tech
Emanuel Berg[_2_]
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Posts: 937
Default US steel trade war

AMuzi wrote:

https://www.ebay.com/itm/Bridgeport-...AOSwo4pYWtY 9


I have one very close to this:

http://www.oocities.org/~tw_kingkong/img1.gif

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underground experts united
http://user.it.uu.se/~embe8573
  #27  
Old March 9th 18, 07:28 PM posted to rec.bicycles.tech
Emanuel Berg[_2_]
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Posts: 937
Default US steel trade war

I have one very close to this:

http://www.oocities.org/~tw_kingkong/img1.gif


Maybe it will do for really small tubes?
Perhaps not for a bike but a nice bedside
table? Furniture design is much more lucrative
than bikes anyway...

--
underground experts united
http://user.it.uu.se/~embe8573
  #28  
Old March 9th 18, 07:44 PM posted to rec.bicycles.tech
Frank Krygowski[_4_]
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Default US steel trade war

On 3/9/2018 11:51 AM, Emanuel Berg wrote:
AMuzi wrote:

https://www.ebay.com/itm/Bridgeport-...AOSwo4pYWtY 9


I have one very close to this:

http://www.oocities.org/~tw_kingkong/img1.gif


That's a drill press, not a milling machine. It has many fewer capabilities.


--
- Frank Krygowski
  #29  
Old March 9th 18, 07:54 PM posted to rec.bicycles.tech
Frank Krygowski[_4_]
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Posts: 6,182
Default US steel trade war

On 3/9/2018 8:52 AM, AMuzi wrote:
On 3/9/2018 12:54 AM, Emanuel Berg wrote:
AMuzi wrote:

Aluminum is no good for a bike frame because
it's too harsh and stiff. Aluminum won't work
either because it's too soft and noodly.
That went on just forever with, as always,
much digression.


One on-topic question on aluminium/aluminum
I thought about asking is how do they cut the
pipes so to get those roundish forms so that
for example the top and down tube aligns so
well with the head tube?


What do you have handy?
A milling machine is fast if you're making a lot of miters but a file
works just fine for one:

http://www.yellowjersey.org/photosfromthepast/MAK8B.JPG


IIRC, Cannondale pioneered using CNC to cut the miters with added tabs,
slots, etc. to allow more precise alignment prior to welding. That
doesn't matter for Emanuel's projects, though.

Maybe someday he'll want to splurge on a full set of frame building
fixtures like these:

http://www.henryjames.com/bicyle-par...equipment.html

http://www.alexmeade.com/Tools.htm

BTW, lots of people call those "jigs" but industrial tool designers
would call them "fixtures." The word "jig" is supposed to apply to
things that physically guide the cutting tool, not just hold parts in
position.

OK, that's enough pedantry for today.


--
- Frank Krygowski
  #30  
Old March 9th 18, 08:09 PM posted to rec.bicycles.tech
Emanuel Berg[_2_]
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Posts: 937
Default US steel trade war

Frank Krygowski wrote:

That's a drill press, not a milling machine.
It has many fewer capabilities.


Yeah, I knew all along it was too good to be
true... Maybe I can get the organization to get
a milling machine tho because isn't drilling
tubes what everyone wants to do?

--
underground experts united
http://user.it.uu.se/~embe8573
 




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