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I think t will be expensive as you'll need very strong magnets. Also magnets are relatively easy to displace sideways over the metal while that is exactly the motion you want to prevent.
If you have a CNC router to make them, sure; Almost, although it seems I have to wait yet another week due to difficulties with the F608 bearings for the trapezoidal screws :D (I have no clue what F608 bearings or trapezoidal screws are but I am (I think) happy someone tackles the problem before I ...
OK. Speaking about torsion boxes, the examples online show a grid made of many small planks glued together. Wouldn't it be better to use long planks over the full length and depth with slits that fit in to each other and glue those (not sure about the proper English terms, hope you know what I mean)?
as well as a page on a parametric bench/table design: https://github.com/akaziuna/cnc-standing-height-workbench I like the table. It's basically a torsion box with legs, formed out of two 122x244 (4x8) sheets of plywood. With what's left you can add strips to make the tortion box stronger. Seems a ...
- Wed May 07, 2014 1:07 pm
- Forum: Design Ideas
- Topic: soundproofing enclosures?
- Replies: 65
- Views: 35191
I since learned/realized that different frequencies are damped differently. It seems the 2000Hz frequency is absorbed quite well so that makes the high reduction measured more understandable.
As far as I understood the mechanics involved are quite well known and there are people called 'audio engineers' who have a large set of mathematical tools they can use to generate answers on what setup would give what noise reduction. If the goal is to make a sell able housing with noise reduction ...
- Tue May 06, 2014 9:05 pm
- Forum: Design Ideas
- Topic: Countering sag of extended X-axis
- Replies: 3
- Views: 1239
With people using long X-axes like 1800mm or longer it's obvious the gantry and spindle weight will make the X-axis sag. I've no idea how much and with 2D work it might not even be important, but I was thinking of a way to possibly counter the sag. I came up with this: http://i1301.photobucket.com/a...
Edward, that looks great. Soundwise I don't think you'll get much reduction because you bolted the machine to the frame which will transport the vibrations to the outside. The advice I got on a local 'sound control' forum is to make the frame on the outside, then use 18mm plywood around to create an...