Scroll Saw.. Vibe Free & Mobile? How?..
The DW scroll saw tri-pod stand goes a long way to take the vibration out of a scroll saw. And a DW with it’s parallel-link arms (copied the Excalibur) is not going to vibrate as a C arm or straight parallel arm. But.. what if you want to make the unit mobile as the DW tri-pod is a stationary stand but will sligthly vibrate at top speed.
The tri-pod will eliminate any jumping around on an un-even floor by taking that 4th leg off as a 3 legged stool does. No shimming required. And to take it a step beyond a tri-pod, mass weight in the correct places will reduce vibration also.
So a tri-pod with added mass weight would be good. Find a way to add a small shop vac on-board and it gets better. Add casters to mobilize and it pretty much sends possible signals of “ready to do business”!
Bottom front is allotted for a small vac.. even though loose weights now fill that area. Rear belly tank has a pipe attached to floor with a threaded flange and a 3/4″ pipe vertical that old give-a-way weights are added for mass. Total weight of unit is around 130 lbs. 4″ front caster and 2 1/2″ rears. Not motorized for the street… yet! ha.. ha… ha..ha..ha..
Tested vibration free at the highest speed and mobile to be moved where one wants it to be at a given moment so my tinkering proved to:
“Get er done and Good to go!
Sarge.. jt
PS. sorry for yellow glow.. shop lights last night and reflection from DW yellow came up “hot”..
Replies
Hot rod red. Looks cool, Sarge. Hard to beat shear mass when it comes to vibration.
Paul
Morning...
Thanks Paul............
It works like a charm and that's the bottom line. Time to move on as I am tinkering with an over-head safety guard for a dedicated dado set-up I have on a second TS. I've got lumber for a bed and drawers in the rack.. but the house and shop up-dates gets priority when this heat is in the 90's here in HotLanta.
Regards...
Sarge.. jt
Well, Sarge, I guess you need to pack up and move out here to the southern Oregon coast where the trees are tall, the grass is green, the air is clean and the girls are pretty ( but not as pretty as my wife ) :) It will probably get to be a blistering 68 degrees today. I guess I'd better get to work fabricating some windows for a client who's building a 16 th century French country home. With any luck maybe it will show up in Architectural Digest sometime. Have a good one
Paul
Afternoon Paul...
Suppose I better hang around the house here since it's paid for. And.. I'm not sure if all the iron that has accumulated over 36 years would be an easy task to move from S.E. to N.W... It would require some major effort and energy and my tank of gas is only half filled at this point of the game. ha.. ha... ha..ha..ha..
Regards...
Sarge.. jt
Sarge, there ya go again, building an absolutely cool machine cabinet! Where can I get one of those decals, eh?
"Rear belly tank has a pipe attached to floor with a threaded flange and a 3/4" pipe vertical that old give-a-way weights are added for mass." Could you rephrase/translate that for me. I'm not quite following for some reason.....
Morning FG...
The decal was picked up as it caught my eye at Auto Zone on their decal rack. I have a penchant for Wolves, Eagles and Hawks. Much more efficient with the decal! :>)
The belly tank is the box below the saw with the removable lid as I'm sure you already figured. I lag screwed a 3" threaded base flange with a 3/4" threaded opening (used by mounting permanent to screw pipe into to hole it in place) and then screwing a 10" 3/4" pipe into to it so it stands vertical.
The weight-lifting weights are then dropped on the vertical pipe as they have a hole in the center for attaching to a weight bar. I added 4 10 lb. weights as I found that was what I needed. There is room in the front of the belly tank to put another flange and pipe for even more weight, but the extra weigh is not needed in this case. I opted to place a small streaker vacuum up there as I had on my old 16" scroll saw. Dust virtually "be gone" with that addition.
Moving on to a dedicated dado head on my 2nd TS with a slider and over-head hold down without even getting close to the blades with your hands with dadoes. That one is going to be a piece of cake IMO and shouldn't take more than an hour.
The temps are in the high 90's here and I will wait till early Sept. before any wood comes off the rack for furniture. Those summer months are house and shop improvement months for the most part, even though I will sometimes build a work bench for a friend if requested. The moisture content changes drastically daily during late June through early August, so I tinker a lot in those months.
Regards...
Sarge.. JT
Ah, gotcha! Thanks for the explanation and additional pictures. I'm not seeing a DeWalt SS in my future, but the design of the stand is intriguing. My bandsaw vibrates since I moved it to a different spot in the shop, and I need to build a stand for it. Not sure a tri-wheel would work in that particular instance, though.forestgirl -- you can take the girl out of the forest, but you can't take the forest out of the girl ;-)
Morning FG...
I have to agree with Cincinnati that if you try it with a BS, you need to keep the BS centered on the tri-pod as close as possible and mass your weigh centered low to avoid tip. And you would also want a tri-pod that extended wider than the machine to off-set the weight the BS components has that sits high. And I often rip 6' long 16/4 stock that will move weight outside the base of my BS. So that would have to be accounted for. I simply use supports on the in-bound and out-bound sides to counter the action it would present.
A tri-pod might also be ruled out with a BS if the larger foot-print is not conducive with your allotted floor space. Having built race-cars, the need to keep the weigh mass low and in the appropriate places is a must for stability and cornering.
An example would be a pick-up truck. It sits high with the weight naturally distributed more to the front where the engine and cab is. The bed has much less weigh over the rear drive wheels when empty that can skip (actually lift off ground as hydro-planing in water does) and lose traction when hitting pot-holes and rough surfaces, etc. And couple that with too narrow of a wheel-base (width from outside of tire on one side to outside of tire on opposite) you are looking at a top heavy vehicle that becomes very dangerous when cornering at too high a speed as the old Suzuki jeep was. This is also quite common in vans and SUV's, but the designers of that old Suzuki should have been tried and executed for stupidity. :>)
Give it some though with your attention centered on "weight adds stability"... but it has to be placed in the appropriate place to add value. That's why they have "load-masters" on cargo air-craft and ships. Put in the wrong place on either of those and para-chutes and life-jackets become a premium commodity. ha.. ha... ha..ha..ha..
Regards...
Sarge.. jt
The weights do more than dampen vibration. They lower the center of mass making the whole assembly more stable (less likely to tip). The scroll saw is typically not cutting large heavy pieces that could overhang and create a problem. But Forrestgirl, the bandsaw could end up there. Make sure your base is heavy and the saw is bolted down well. Then casters will work as long as the "base triangle" formed by the casters contains the center of gravity of the stand/saw. 4 wheels are safer but more of a pain to keep in one plane.Greg
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Morning Greg..
I agree.. see post 10.
Regards...
Sarge.. jt
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