I have found that my Gingery shaper does not remove that much metal per cut. It is far lighter weight than a big commercial machine. Going more than about 5 thou in 6061 causes my machine to jam and the belts to slip. Now, maybe I'm just babying it and could tighten the belts more and push harder. What does the group think?
Rick (via iPod)
On Sep 22, 2010, at 3:40 PM, nesmuck@aol.com wrote:
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> Pierre,
> Shapers are not used very often in the machine trades any more. Forty plus years ago when I was an apprentice, they were used quite a bit. They are slow, but very powerful machines capable of removing large amounts of metal per cut. We used to use them for squaring and sizing steel blocks. Skilled operators could even chase curves and cut internal keyways (similar to broaching). Sadly they have pretty much disappeared from the machine shops of today, and so have old men like me who know how to use them.
> Tom B
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> -----Original Message-----
> From: pierrepmx <foxtango@spectralfactory.com>
> To: gingery_machines@yahoogroups.com
> Sent: Wed, Sep 22, 2010 4:26 pm
> Subject: [gingery_machines] Candid shaper questions
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> Hi all,
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> so, it's about shapers. To be honest, I never heard of this before.
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> Or maybe once: I remember that in college, that is 30 years ago, we had a "primer" on industry and machine tools. They talked briefly about a machine that was totally phased out. That machine really looked like the shaper.
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> I searched everywhere for info, including this site (searching the forum for "shaper" returns about 34000 hits !) I also found Key Fisher's site, but I didn't found any "recent" industrial news involving this machine.
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> Here are my questions:
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> - are shapers phased out only in France and Europe and still in use in the US (hence their popularity on this forum) ?
> - or are the people on this group the guardians of a Lost Art ? (you can take it as a compliment from me)
> - for what job is it (was it) the most used (I understand that it's a "plane oriented" machining tool). Key Fisher's site has an interesting articles about the wide use of Chinese made shapers nowadays in Vietnam, but there is no real infos on what they do with them.
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> Based on the "recommended" stroke speed and feed rates, I calculated that one pass on a 300x300mm block of steel was supposed to take between 15 and 30 minutes, depending on the speed of the return stroke (from "speed of light" to "equal to the forward speed"). I re-made the calculation several times.
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> Is a shaper that slow ?
> (Youtube videos tend to confirm that its a slow but outrageously powerful machine).
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> Thanks in advance to answer my curiosity !
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> Pierre.
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