RE: [CAD_CAM_EDM_DRO] Re: ACE Converter anomaly, REDWOOD

Alan:

Splintering when cutting across the end grain is normal when working with
wood, wether you're using a high speed router or a slower speed mill. You
avoid this problem by placing a board directly behind the "good" board so
that the mill cuts across the grain from the "good" piect and into the
backer board. Other things to be careful of when routing wood is the
direction of the grain of the wood with respect to the rotation of the
cutter. You want the grain to go from the center of the piece to the end as
the wood moves into the cutter (in other words, if the wood is going to
chip as the cutter cuts into it, you want the chip to move towards the
outside of the wood rather than towards the inside).

-- Jerry Jankura
Strongsville, Ohio
So many toys, so little time

| -----Original Message-----
| From: Alan Marconett KM6VV [mailto:KM6VV@...]
| Sent: Monday, July 16, 2001 3:50 PM
| To: CAD_CAM_EDM_DRO@yahoogroups.com
| Subject: [CAD_CAM_EDM_DRO] Re: ACE Converter anomaly, REDWOOD
|
|
| Hi Milton,
|
| I'd love to see pix of the router table you built with the "motion
| control kit". I have an extra one, and I think that's what I'm going to
| do with it!
| Also, I'm curious about cutting wood. This weekend, my youngest son set
| out to cut redwood with my new RF-31 mill. New two-flue 3/8 endmill.
| .20" cuts, it went fine, "normal milling", until he got to the end of
| the board. He was making a 1/2" x 7/16" lap joint, and the "end" grain
| of the board splintered when the cutter began to leave the stock. Any
| suggestions?
|
| Alan KM6VV
|
|
| mdickey@... wrote:
| >
| > --- In CAD_CAM_EDM_DRO@y..., "Carol & Jerry Jankura"
| > <jerry.jankura@s...> wrote:
| > >
| > >
| > > | -----Original Message-----
| > > | From: mdickey@b... [mailto:mdickey@b...]
| > > | Sent: Saturday, July 14, 2001 9:04 AM
| > > | To: CAD_CAM_EDM_DRO@y...
| > > | Subject: [CAD_CAM_EDM_DRO] Re: ACE Converter anomaly
| > > |
| > > |
| > > | --- In CAD_CAM_EDM_DRO@y..., "Carol & Jerry Jankura"
| > > |
| > > | I just changed over from the MaxNC "Mill" CAM program to Ace
| > > | Converter for my CNC router using TurboCAD v3.01 (my workshop PC
| > is a
| > > | 486 and doesn't like newer CAD programs that eat memory) and
| > wasn't
| > > | getting anywhere until I started creating a separate layer for
| > each
| > > | individual part on a "cutsheet." I cut out around 10 - 15 parts
| > > | (model aircraft stuff) at a time and assign each one a separate
| > layer
| > > | starting at "0".
| > >
| > > One other question - Would I assume that you mount one piece of
| > metal to
| > > your mill and then just have your machine cut one part after
| > another, or do
| > > you mount each piece of metal one at a time, with a machine "pause"
| > between
| > > parts?
| > >
| > > -- Jerry
| >
| > Hi Jerry,
| >
| > Sorry for the slow reply, I only have internet access at work.
| >
| > I'm using the MaxNC program that came with my hardware kit to
| > actually run the G-Code. I guess I didn't make that clear. My
| > machine is a homebuilt router table, 12" X 12" vacuum workspace,
| > 23,000 rpm Porter Cable trim router, 1/16 & 1/8" carbide 2 flute
| > router bits. I cut balsa, ply and plastic model aircraft parts. I
| > have a 12" X 12" "virtual worktable" saved in T/CAD, with the 0/0
| > origin in the bottom left corner, on which I position as many CAD
| > drawn parts as I can cram onto it. I then make a layer for each part
| > and decide the most efficient order to cut the parts since my
| > machine has very limited speed. Once Ace has the code completed, I
| > place my 12" X 12" sheet stock on the table, crank up the vacuum and
| > the router, then let the machine cut out the whole set of parts as
| > one sequence. I cannot begin to tell you the amount of time that Ace
| > is saving me compared to the MaxNC "Mill" program.
| >
| > Milton
|
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