On 5/13/24 16:47, Todd Zuercher via Emc-users wrote:
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.
That has got to be north of
See cable beam stifferDo on 3 or 4 sides.Be safeDale
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On Monday, May 13, 2024 at 08:07:14 PM EDT, Dale Ertley
wrote:
Small blocks on the outside middle of beam on 3 or 4 sides of the beam with
small aircraft cable attached
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
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
wrote:
CAUTION: This email originated from outside the Walla Walla University email
system.
Anyone have any brilliant ideas to stiffen a woefully
On Mon, 13 May 2024 at 22:50, Chris Albertson
wrote:
> Adding anything inside is the worst place to add material.
Yes, without a doubt, but it seems fair to assume that the ganry has slides
and other components on the outside, but not on the inside.
The base beam has an Iyy (bending in the
Adding anything inside is the worst place to add material. Add it outside.
Stiffness is the cube of the beam thickness, so you really want to make it
bigger.
Then secondary to making it bigger is to improve the shape to remove those
parallel sides.
So it you are just going to epoxy
> On May 13, 2024, at 1:45 PM, Todd Zuercher via Emc-users
> wrote:
>
> 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.
>
>
I still think analog inputs/outputs could be a good way to go. I haven't
run any of this, but something like this for the Python HAL component:
https://gist.github.com/jallwine/1a0ad4ffcee00f31e286c485ea38a609
And something like this to hook it up in HAL:
On Mon, 13 May 2024 at 21:51, Todd Zuercher via Emc-users <
emc-users@lists.sourceforge.net> wrote:
>
> I'm less concerned about the actual stiffness and more worried about
> dampening the wobble.
>
Maybe you could epoxy a smaller (aluminium?) extrusion or box inside the
existing one? The epoxy
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
On Fri, 10 May 2024 at 21:11, Todd Zuercher wrote:
> But I need to read them when they are not applied.
>
You could apply them, read them, then revert.
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is designed
for the especial use of mechanical geniuses, daredevils and
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