Bandsaw Mods.

[wm460]

A while ago There was a thread about dust collection on band saws some one Derek or Peter I think/? Enclosed the upper dust port.
Can some on please direct to the thread.:pray:

 

[Penpal]

Self explanatory from the pics Mark. Pics show enclosed now space to help pull the rubbish away from the lower guides. It works a treat.

Peter.

 

[Doug]

I remember posting up some bandsaw mods I did earlier in the year but I can't find them now, here's my alterations Mark.

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The open triangular area I thought would benefit from being sealed off so any air going into the port had to be drawn from the slots the blade passes through, to achieve this I fitted a piece of MDF to the top corner of the bottom door & covered this with self adhesive foam.

My reasoning behind doing this was as the slots the blade passess through are quite small & hopefully I could get away with reducing the 4" port down to 1 1/2".
A dig around the stores came up with a some plumbing fittings which was the easiest way I could think of of making a small tee off off the main duct, this is what I came up with.

Turning the extractor on I was disappointed when placing my hand over the triangular opening to feel very little suction presumably the majority of the air was passing through the this port.

I figured reducing this port would would increase suction at the higher outlet but I was conscious of not doing this with anything that could be drawn into the extractor so cut a piece of MDF to a friction fit.

 

[Doug]

Peters & my posts crossed as we posted, seeing his photos I seem to remember I posted my pictures originally in a thread Peter started, perhaps that's why I couldn't find them
I opted for the foam over a fixed cover as its one less task to do removing & replacing it when changing blades, though I guess if you don't change your blades that often it's no biggie.

 

[wm460]

tHANKS FOR THE PICS, sorry about the caps.
Doug did reducing the air flow to the lower port increase suction?

 

[wm460]

I opted for the foam over a fixed cover as its one less task to do removing & replacing it when changing blades, though I guess if you don't change your blades that often it's no biggie.

That just what I am doing now, with a lot of saw dust every where made decide to do something about it.

 

[Penpal]

If you reduce the tube sizes it can have a negative effect unless you use it to match your extraction unit, not a biggie. I left my extraction on the bottom the same knowing its easy to sweep it out (any excess caused by it not going to the bottom. Using the hardened face blades yes I do not have blade life problems. Plumbing fittings are my friend also.

Peter.

 

[Doug]

Mark what I tried to do with reducing the bottom port was to end up with a similar area of the two outlets to the 4" hose that extracts from the bandsaw.
Whilst it isn't perfect it's the best extraction I've managed from a bandsaw that still allows easy swapping from one size blade to another.
I have tried previously having a pipe under the table that the blade passed through, it worked well but was a pain when changing blades.

 

[wm460]

i FOUND SOME FOAM that I had bought home because it might cone in handy one day, It has a peel and stick surface on the back, I will see how this goes.
Been thinking about how to make the gap where the brush is smaller, I cant get my drill in there to drill a hole.

 

[Penpal]

That area Doug is a black one IMHO in Bandsaw manufacture those bottom bearings get a caning. Watching a recent video from the USA the bloke demoed his product almost stripping and aligning in warp time. Mine was hugely expensive and large tables are so unwieldy I envied his dexterity. To change to a very wide blade on my 21 inch three phase is an awful task the blade installation is a mongrel.

I remember how simple life used to be with my old 3 foot wheeled bandsaw C frame older than me stood 8 feet tall. The guide was a brass sleeve, I still miss it. It had no covers so I made them well worth the time.

Peter.