eliminating vibrations

[turpija]

i had an idea to make a main construction for cnc router out of square steel tubing, and for "silencing" vibrations i thought to put sand into frame. would this make any significant improvement or is this waste of time ?

[lgalla]

pozdravi,Turpija,
I am one of the guys{caknut}from the Epoxy granite machine bases thread where we a attempting vibration reduction.Hollow steel tubes will resonate like a pipe organ because of the hollow nature.Sand is a good choice to dampen resonances as it is cheap and if not suitable can be removed.The next step is epoxy and sand and not changeable.Read the posts on the epoxy granite and decide if you want to try it.Raw sand is a good starting point.
Hvala
Larry

[walter]

Great info Mr Larryard!

And speaking of pipe organ.. Where are you guys buying your steel tubing?
I need some for my project. Not really loud but some good sounding steel.
_

[lgalla]

Good sounding steel is for Steel drum bands,not for CNC machines.Steel drums go ding,ding boom,boom,sand damping is not suitable as you will get dud,dud.The various sizes and lengths of steel tubeing in a CNC machine will resonate at different frequencys hopefully in key and in concert,making a new hit single.If not you could possibly us it to cut aluinium,I understand servos are smooth,while steppers resonate possibly adding to the musical experience.Nesretan Turpiga,I kazano we are the ludovati decki.
Αποτελέσματα αναζήτησης για 'apollonius de perga': Δεν βρέθηκαν λέξεις.

AdamAnt:good sounding steel is no sounding steel

[dertsap]

i was thinking if the steel tubing will echo any noise on my system i will try spray foam (insulation) , it would be light and should dampen any vibrations

[turpija]

Pozdrav lgalla !

So sand would make a difference (improvement) considering dampening vibrations, that's nice to hear
And i've saw some of those epoxy with sand solutions, but i did't research where could i get all the supplies, and for first hand sand seems like a logical solution epoxy sand can allways be added later ...


2 derstap: that (poliurethane) foam, yellow right, would probably make it better than just tubes alone but sand is way havier, and that's also what good machine makes better

[RICHARD ZASTROW]

I over engineer everything. Lead shot in 90w gear lube with a drain hole large enough for media changes if it doesn't work. Doesn't work for the pipe organ thing however.

[cut more]

I have an 80/20 router and was thinking of trying the urethane foam in the extrusion.
Dertsap,I was wondering if you tried the foam in yours or just thinking of trying it?
I agree it should help.
Cutmore

[dertsap]

Originally Posted by cut more I have an 80/20 router and was thinking of trying the urethane foam in the extrusion. Dertsap,I was wondering if you tried the foam in yours or just thinking of trying it? I agree it should help. Cutmore

i do plan to use it but i haven't tryed it yet , i want to make sure i'm all done with my wiring and such before i do so

[lgalla]

If one was to fill a frame with anything,depending on the size of the machine,The verticals are easy.How would you fill the horizontal tubes? Larry

[cut more]

IGALLA,
If you use something like expanding foam it would be easy to fill in any direction.
Dertsap,
Thanks for the reply.
Cutmore

[RICHARD ZASTROW]

Or try this http://www.mkprofiles.com/profile_sy...d_profiles.asp