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Forum: 55. Dust Management Sat 05 December 2009, 00:34
Replies: 35
Views: 45,809
Posted By Gerald D
If a radius is difficult to bend, you might find...

If a radius is difficult to bend, you might find it simple enough to make 45 degree bends.
Forum: 55. Dust Management Fri 04 December 2009, 22:52
Replies: 35
Views: 45,809
Posted By Gerald D
I don't think there will be any turbulence issues.

I don't think there will be any turbulence issues.
Forum: 55. Dust Management Sat 28 November 2009, 08:14
Replies: 35
Views: 45,809
Posted By Gerald D
Robert, I don't know if my son is using the...

Robert, I don't know if my son is using the latest dustfoot, but its form/fit/function is the same as our first MechMate's design of a good few years ago and that one is still used every day. The...
Forum: 55. Dust Management Wed 24 September 2008, 23:03
Replies: 35
Views: 45,809
Posted By Gerald D
By the same token, that hardwood "mould" can...

By the same token, that hardwood "mould" can become the permanent stiffener, in place of the HDPE that I used - just needs to be trimmed smaller on the outer perimeter, and the suction hole can be...
Forum: 55. Dust Management Wed 24 September 2008, 23:00
Replies: 35
Views: 45,809
Posted By Gerald D
Hi Paco, a hardwood "anvil former/die" (mould?)...

Hi Paco, a hardwood "anvil former/die" (mould?) should also be okay because we are not looking for precision tolerances. You should be able to test that quite quickly with some scrap in your...
Forum: 55. Dust Management Wed 24 September 2008, 10:35
Replies: 35
Views: 45,809
Posted By Gerald D
to carry on

Well spotted Marc . . . .here I started undoing the mistake . . . .
2189

Going the right way now . . .
2190

2191

See that this long bend is not as sharp as it can be . . . .
2192
Forum: 55. Dust Management Wed 24 September 2008, 08:57
Replies: 35
Views: 45,809
Posted By Gerald D
Public holiday here today . . . . further work: ...

Public holiday here today . . . . further work:

The brush 7372T3 (http://www.mcmaster.com/nav/enter.asp?partnum=7372T3&pagenum=1226) is far better than the other one I tried before. The bristles...
Forum: 55. Dust Management Sun 21 September 2008, 06:44
Replies: 35
Views: 45,809
Posted By Gerald D
Maryland Institute for Emergency Medical Services...

Maryland Institute for Emergency Medical Services Systems? :confused:
Forum: 55. Dust Management Sat 20 September 2008, 22:14
Replies: 35
Views: 45,809
Posted By Gerald D
JR, the high-tech hold-in doesn't merit its own...

JR, the high-tech hold-in doesn't merit its own pic......you should get it from this description:
1. Vertically insert 4 more screws, 2 per side, straddling the joint. These screws 25mm [1"] long...
Forum: 55. Dust Management Sat 20 September 2008, 21:57
Replies: 35
Views: 45,809
Posted By Gerald D
These brushes may be a bit on the thin side (they...

These brushes may be a bit on the thin side (they ride over the clamp easily) but there are no choices on thickness. Our 3-year old brush is much thicker, but it has had a couple of haircuts to thin...
Forum: 55. Dust Management Sat 20 September 2008, 13:27
Replies: 35
Views: 45,809
Posted By Gerald D
JR, you are going to laugh when you see the...

JR, you are going to laugh when you see the high-tech hold-in method. It involves 2 O-rings, but I don't have any at home this weekend. I might pose a photo with a substitute for the o-rings tomorrow...
Forum: 55. Dust Management Sat 20 September 2008, 06:15
Replies: 35
Views: 45,809
Posted By Gerald D
2153 2154 2155 2156 ...

2153

2154

2155

2156


Experimenting with some wire in the joint to tighten the grip and twist the bristles more vertical:
Forum: 55. Dust Management Fri 19 September 2008, 13:43
Replies: 35
Views: 45,809
Posted By Gerald D
stationary

stationary
Forum: 55. Dust Management Fri 19 September 2008, 10:45
Replies: 35
Views: 45,809
Posted By Gerald D
Dust foot under construction in Cape Town

1mm thick sheet steel:
2138


12mm thick steel "anvil" former:
2139


Forming by hammer (gently!):
2140
Showing results 1 to 14 of 14

 
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