If you want to make sure all the voids are filled then try using an orbital sander against the box to work like a vibro rod. Just put a bit at a time in and vibrate the hell out of it.
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If you want to make sure all the voids are filled then try using an orbital sander against the box to work like a vibro rod. Just put a bit at a time in and vibrate the hell out of it.
I wouldn't bother with resin it's messy and expensive.!!. . . . . . If you need to dampen Just use kiln dried sand It's cheap and nothing works better at damping resonance.
Build in a drain hole has well a fill hole and you can easily remove when need to move machine around.
I'm not sure tbh, if you have a solid, shrunken lump inside of a steel box surely most of the vibration will just stay in the steel and not pass into the EG, the steel beam would also deform like normal steel until it made cotact with the EG beam?
This is why someone really needs to part with some cash and do some directly comparable real world tests...
Attachment 8539
Revised 80x80x3 SHS frame - brings the cost down quite a bit. 6mm plate and/or welded connections...
Just been going through the whole of your thread, its given me some good info for my design/build....where are you at with it now?
I have have had a set of cutting/drilling/tapping drawings done for the frame for ages but for one reason or another have not started building the frame yet. I have the mighty Rage 2 now so will be ordering the steel in the next week or so. I've also been collecting some of the other tools I'm going to need, got a precision 1m rule, couple of engineers squares, caliper etc etc
Really want to get on with it!
Ah - I can imagine that takes a while to accumulate...my workshop has been getting more & more cluttered with that kind of stuff for the last couple of years :-p
Looking forward to seeing some progress ;-)
Just ordered me some steel... About time!
Attachment 9906 big pile of steel.