Search found 16 matches

by Philip
Mon May 19, 2014 3:29 pm
Forum: Discussion
Topic: Magnetic Clamps
Replies: 6
Views: 941

Re: Magnetic Clamps

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.
by Philip
Fri May 16, 2014 12:51 pm
Forum: Lounge
Topic: More CNC projects/plans?
Replies: 8
Views: 1682

Re: More CNC projects/plans?

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 ...
by Philip
Fri May 16, 2014 6:43 am
Forum: Lounge
Topic: More CNC projects/plans?
Replies: 8
Views: 1682

Re: More CNC projects/plans?

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)?
by Philip
Thu May 15, 2014 12:45 pm
Forum: Trim Routers
Topic: Kress 1050
Replies: 68
Views: 21999

Re: Kress 1050

Any thoughts on a Kress 800 vs 1050? The 800 is 1.4 kg vs 1.7 for the 1050.
by Philip
Wed May 14, 2014 1:54 pm
Forum: Lounge
Topic: More CNC projects/plans?
Replies: 8
Views: 1682

Re: More CNC projects/plans?

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 ...
by Philip
Mon May 12, 2014 5:44 pm
Forum: Build Logs
Topic: Mr. JwC's eShapeoko [Pre-Build]
Replies: 14
Views: 5732

Re: Mr. JwC's eShapeoko

Curious what the runout on that spindle is, it's very cheap.
by Philip
Wed May 07, 2014 1:07 pm
Forum: Design Ideas
Topic: soundproofing enclosures?
Replies: 65
Views: 33676

Re: soundproofing enclosures?

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.
by Philip
Wed May 07, 2014 12:55 pm
Forum: Build Logs
Topic: Edward's S2 Enclosure
Replies: 21
Views: 6556

Re: Edward's S2 Enclosure

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 ...
by Philip
Tue May 06, 2014 9:05 pm
Forum: Design Ideas
Topic: Countering sag of extended X-axis
Replies: 3
Views: 1204

Countering sag of extended X-axis

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...
by Philip
Tue May 06, 2014 3:01 pm
Forum: Build Logs
Topic: Edward's S2 Enclosure
Replies: 21
Views: 6556

Re: Edward's S2 Enclosure

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...