See cable beam stifferDo on 3 or 4 sides.Be safeDale
코스피
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코스피
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On Monday, May 13, 2024 at 08:07:14 PM EDT, Dale Ertley <ertl...@yahoo.com>
wrote:
Small blocks on the outside middle of beam on 3 or 4 sides of the beam with
small aircraft cable attached to each end pulled tight.
Use small turn buckles to tighten the cables over the block on that one
side.You may be able to reduce the mass of the beam with the added stiffness of
the blocks and cables.
Be safe.
Dale
On Monday, May 13, 2024 at 07:31:34 PM EDT, Ralph Stirling via Emc-users
<emc-users@lists.sourceforge.net> wrote:
Can you run a steel cable through it and tension it? Might stiffen it up some.
-- Ralph
On May 13, 2024 1:46 PM, Todd Zuercher via Emc-users
<emc-users@lists.sourceforge.net> wrote:
CAUTION: This email originated from outside the Walla Walla University email
system.
Anyone have any brilliant ideas to stiffen a woefully inadequate cross beam on
a gantry router without adding too much mass? What is there now is a 4" x 8"
rectangular 3/8" walled extrusion that is 145" long.
Under normal jogging commands the two servos control the ends of this gantry
reasonably well, but while the axis is homing the thing shakes and wobbles
terribly bad. Also If I put a dial indicator in the center of the bridge and
hit the bridge forward or backward it will flex and wobble enough to displace
the dial indicator +/-0.03 and it takes nearly a dozen wobbles to dampen it.
But on the ends the servo's only have a few thousandths of give.
I'm less concerned about the actual stiffness and more worried about dampening
the wobble.
Todd Zuercher
P. Graham Dunn
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