A little challenge

jmadden · Post by **jmadden** » Sun Nov 10, 2013 1:13 pm

Thanks for all the good info guys. This is great stuff. I have already made several of the modifications you have shown and seen very good results. Here is my thought. Why not add a second hose connection to the front side of the lower guard? I think running two hoses would help a lot. When I use my conical sanding disk I mount a second hose to the front edge of the lower guard with a removable clip I made. The hose does not penetrate the guard but just sits in front of it. It grabs almost all of the fine dust.

algale · Post by **algale** » Sun Nov 10, 2013 1:19 pm

jmadden wrote:Thanks for all the good info guys. This is great stuff. I have already made several of the modifications you have shown and seen very good results. Here is my thought. Why not add a second hose connection to the front side of the lower guard? I think running two hoses would help a lot. When I use my conical sanding disk I mount a second hose to the front edge of the lower guard with a removable clip I made. The hose does not penetrate the guard but just sits in front of it. It grabs almost all of the fine dust.

This is a good idea in theory. In practice, I think you will find that when the saw blade is in the table insert and ready to make saw dust, you will find that the main table post and trunnion is in the way of getting a hose into a position where it would do any good.

dusty · Post by **dusty** » Sun Nov 10, 2013 1:20 pm

jmadden wrote:Thanks for all the good info guys. This is great stuff. I have already made several of the modifications you have shown and seen very good results. Here is my thought. Why not add a second hose connection to the front side of the lower guard? I think running two hoses would help a lot. When I use my conical sanding disk I mount a second hose to the front edge of the lower guard with a removable clip I made. The hose does not penetrate the guard but just sits in front of it. It grabs almost all of the fine dust.

I agree with the idea of a 2nd hose but I may differ in where that hose should be. I have been testing with a hose on the left of the blade on the outfeed side. If the riving knife is not in place, there is a gaping hole there. Not much dust escapes from there but I see that as a good place to attach a 2nd hose with the hopes that it will disrupt that saw dust that comes to the top side of the table (riding in the gullets of the blade).

I see from your profile that you have been with us for quite some time but that you have commented much less than some of us. It is good to have new, fresh thoughts and comments. I hope that you feel comfortable joining in. It sounds as though you have some really good ideas.

JPG · Post by **JPG** » Sun Nov 10, 2013 1:44 pm

dusty wrote:I haven't tried that (YET) but I don't see why not.....except that I might have to adjust the width and the tape may interfere.

As an after thought...the ZCI is a lot easier to remove/replace than is the lower saw guard.

But, as still another after thought (this one prompted by a comment from the better half), "Why can't that dust deflector be attached to the table rather than the insert"? Hmmmm, I don't know that there is a reason.

I do!

Tease Tease Tease:D

JPG · Post by **JPG** » Sun Nov 10, 2013 1:52 pm

The deflector attached to the table and inserted into the lower guard would resist sliding the table away from the blade, however, if the table were raised high enough for the deflector to clear the guard, SWMBO just might be a winner(again:D)! Table tilt would still be a problem(for those with ONLY one lower guard:rolleyes:)(or insert)!

Table/insert - same, but table does not require messing with it with insert changes.

dusty · Post by **dusty** » Sun Nov 10, 2013 2:10 pm

JPG40504 wrote:The deflector attached to the table and inserted into the lower guard would resist sliding the table away from the blade, however, if the table were raised high enough for the deflector to clear the guard, SWMBO just might be a winner(again:D)! Table tilt would still be a problem(for those with ONLY one lower guard:rolleyes:)(or insert)!

Table/insert - same, but table does not require messing with it with insert changes.

If this latest idea works, there would be no need for a 2nd dust collector. For this idea to be a success, it would not interfere with the normal functions of the Mark V. That is the ultimate goal and often the greatest spoiler. The Shopsmith is a simple machine to maintain and use but it is a very complex design. You discover that very quickly when you mess with the status quo.

algale · Post by **algale** » Sun Nov 10, 2013 2:16 pm

JPG40504 wrote:The deflector attached to the table and inserted into the lower guard would resist sliding the table away from the blade, however, if the table were raised high enough for the deflector to clear the guard, SWMBO just might be a winner(again:D)! Table tilt would still be a problem(for those with ONLY one lower guard:rolleyes:)(or insert)!

Table/insert - same, but table does not require messing with it with insert changes.

Good points, as usual. I think using a combination of approaches might be the best solution. A short 3/4 inch soft (flexible) shroud mounted to the insert or table and an accordion style deflector mounted to the lower saw guard.

JPG · Post by **JPG** » Sun Nov 10, 2013 2:29 pm

Brain storm alert!!!!

The 'deflector' if made like a camera iris(overlapping 'sheets' that are free to slide at the top, but pivot from the bottom would both expand for wider lower guard widths and also be able to tilt with the table.

Visualize a bar(very small) across the bottom of the deflector with a hinge pin for each flat 'segment' across the bar. As the table is tilted to the right, the left most 'segment' would rise with the table and all others to a lesser varying degree with the right most actually lowering. The bar slides against a rail added to the inside of the guard from the bottom. The deflector drops behind rail when mounting the table.

Fabrication of the 'hinges' might be a challenge!

The outer sheets could have 'wings' to widen the top of the deflector.

Time for a 'center calm'!

JPG · Post by **JPG** » Sun Nov 10, 2013 2:39 pm

Calm over!!!

The 'wings' could be utilized to provide attachment to the table(ribs - I have not looked, I be storming out of de shop).

The bottom 'bar' could include a pivot

never mind the table must raise/lower. That multi-function gremlin again!:rolleyes:

The top end of the sheets need something to slide in(a groove formed by two parallel 'bars' with a gap for the sheets). Attach them to the outer(winged) sheets (and de table?).

Back to calm!;)

algale · Post by **algale** » Sun Nov 10, 2013 2:40 pm

[quote="JPG40504"]Brain storm alert!!!!

The 'deflector' if made like a camera iris(overlapping 'sheets' that are free to slide at the top, but pivot from the bottom would both expand for wider lower guard widths and also be able to tilt with the table.

Visualize a bar(very small) across the bottom of the deflector with a hinge pin for each flat 'segment' across the bar. As the table is tilted to the right, the left most 'segment' would rise with the table and all others to a lesser varying degree with the right most actually lowering. The bar slides against a rail added to the inside of the guard from the bottom. The deflector drops behind rail when mounting the table.

Fabrication of the 'hinges' might be a challenge!

The outer sheets could have 'wings' to widen the top of the deflector.

Time for a 'center calm'! ]

Interesting idea. I don't follow what would cause the raising/lowering of the segments? Downward pressure of the table?