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- Newsgroups: rec.woodworking
- Path: sparky!uunet!microsoft!hexnut!ericb
- From: ericb@microsoft.com (Eric Brown)
- Subject: Re: Shaper vs. routr table
- Message-ID: <1992Dec29.181826.28332@microsoft.com>
- Date: 29 Dec 92 18:18:26 GMT
- Organization: Microsoft Corp
- References: <1992Dec28.173243.22071@microsoft.com>
- Keywords: shaper router
- Lines: 37
-
- Steven Johnson writes:
- |I'm fairly ignorant in the use/purpose of a shaper. I currently have
- |a nice router table with a nice PC router in it. IS there any reason
- |for me to get a shaper? (There's a good deal on one locally, but if
- |I can do all the operations a shaper can on the router, then why
- |spend extra money?)
- |
- |I know the shaper brings more HP to the work, but given slower feed
- |rates, couldn't I just do everything on the router? (This is a
- |variable speed PC router, so I can slow big bits down.)
-
- The major advantages of a shaper over a router/table are:
- 1. Deeper/wider cutting profile capacity. There are huge (10 inch diameter)
- cutterheads that can cut >4" deep rabbets, open mortices, or tennons.
- There are also 4 to 6 inch high cutters for very wide profiles. (Note
- that these larger cutters are only available for production sized shapers;
- those with spindles of an inch or greater diameter.)
- 2. Greater feed rate/capacity. This is obvious from the heavier motor/
- components.
- 3. Custom knives. You can get custom router bits made, but they are
- very pricey. Shaper knives can be ground from blank stock with ordinary
- grinders. It's not too difficult, I've done it myself.
-
- The biggest disadvantage (other than cost/size): Bigger cutterheads means
- more danger, especially if you are using non-indexed loose knives.
- Shapers are extremely dangerous tools, perhaps the most dangerous tool
- in a typical woodshop. (hey, maybe we should start a "my tool is more
- dangerous than yours" thread ;-)
-
- If you can get the results you seek from a router in a table, then your
- money may be better spent on another tool rather than a shaper.
-
- BTW, does anyone know of any good books on the use of shapers? I would not
- recommend anyone using a shaper without proper instruction.
-
- --
- Eric
- Microsoft Systems, Advanced Systems Development
- {sun | uw-beaver | apple | uunet | fluke}!microsoft!ericb
- internet: ericb@microsoft.com
-