Outfeed Table

[wasatch]

What about routing out some of the areas of the underside of the OFT to lighten it up but maintain the structural strength?

[dusty]

Here is a picture of one of them. I still have to scotchbrite and paint them.

I saw these brackets and decided to make a slightly different version for use on my upcoming infeed table.

They are smaller and require less work to complete.

The only functional difference is that they must be used with a support bar]20700[/ATTACH], [ATTACH]20701[/ATTACH]

They are not finished. I need to drill holes for the screws that mount them to the table.

[wasatch]

I used Dusty's idea of trying everything upside down on a table to try out the range of motion of my outboard OFT support mechanism(good idea). I've tried three different combinations of brackets on the outboard side and there is always table droop when going from flat to angled but I think I'm OK with that. The two brackets on the SS table side work great and it is my opinion that a slight table adjustment on the outboard side to go from a flat to angled table isn't much of a problem as it takes seconds to re-adjust and will require quite some time invested to engineer anything else, plus the costs and complexity involved in the finished bracket. I didn't want to use non-shopsmith pipe or devices, other than the new aluminum brackets to make this table function. You know how fast little bits and pieces add up with your shopsmith SPTs.

The SS 520 OFT costs $199 + shipping. I figured I'm in mine around $113.
Mine is slightly heavier than I'd like but I'm thinking of lightening it up by routing out some triangles on the underside of the OFT bottom. It does work very well. I also need to cut out an outboard riving knife hole for bevel cuts.

Parts List
(1) 1/2"x 2 x 4 birch plywood
(1) 1/2" x 2 x 4 MDF (laminated to birch plywood)
(6) 1/4-20 brass wood inserts
(10) 1/4-20 x 3/4" bolts
(1) 24" Incra plus T-track (will not be able to use SS miter but homemade jig)
(1) Formica sheet (color:steel mesh) 30" x 4'
(1) quart contact cement
(12') 1" T-BLA-100 t-molding.com, (could go 11')
(?) Hot melt glue to mount t-molding
(5) 1/4-20 locking nuts
(14) 1/4" washers
(1) 1/4" x 6" bolt for table support tube turning
(1) 1/4" Woodpeckers Multi-knob
(1) 1/4-20 T-nut
(1) 1/4-20 flathead bolt
(7) 8-32 brass pan head screws to attach t-track
(1) 3/4" galv pipe nipple cut to 1"
(7) 8-32 x 1/4" t-nuts to mount t-track


View #20 Shopsmith Sawdust Sessions Ripping Bevels/Outfeed Table to get an idea what turnings you will have to make on your Shopsmith.
The table support tube bracket/device works fine but the OFT side bracket has issues binding when you adjust the table from flat to angled.
I don't want to show my OFT outboard bracket yet, I have some work to do on it. I drew and cut the table side brackets on a CNC machine. I am very happy with the OFT.

Time to move on to the next project. Good luck with yours!:)

[camerio]

Where do you find aluminium angles like that ?
Thanks for the list of materials.
This thread is by far a very useful one by its quality in descriptions and pictures.
Thank you guys for sharing this.
Most interesting and that is what I like on this forum.

[dusty]

Where do you find aluminium angles like that ?
Thanks for the list of materials.
This thread is by far a very useful one by its quality in descriptions and pictures.
Thank you guys for sharing this.
Most interesting and that is what I like on this forum.

These particular ones were cut from what I believe was a 4' length. Lowe's and HD both carry it in stock. It normally is in a rack along with flat iron and threaded rod.

I don't know the specific department but it is not with lumber or plumbing.

[camerio]

These aluminium angle how thick are they ?
Next time I go to town, I will check with the Home Depot (we do not have any Lowes' Store in Quebec city) I think the nearest one is in the Ottawa area.

[dusty]

These aluminium angle how thick are they ?
Next time I go to town, I will check with the Home Depot (we do not have any Lowes' Store in Quebec city) I think the nearest one is in the Ottawa area.

These particular ones are 1/8" thick. It is 2" aluminum angle.

I have checked the longer pieces for straightness with a precision straight edge and they are dead on. I have one piece that I keep in the shop for use as a fence. Sometimes, when I have the table tilted and need an extension for the rip fence (out onto the outfeed table), I clamp it in place. Works great for a quick solution.

[anmius]

These aluminium angle how thick are they ?
Next time I go to town, I will check with the Home Depot (we do not have any Lowes' Store in Quebec city) I think the nearest one is in the Ottawa area.

Check your PM.

[dusty]

[quote="JPG40504"]Add a 5/8" offset.]
Getting the pivot points all lined up is somewhat necessary and somewhat beneficial but I have about convinced myself that it is impossible to do this outfeed table thing without having the droop or sag or whatever we call it occurring when the table is tilted.

Getting that sag minimized requires that the pivot points all get lined up but if the pivot points are not all in the same plane - there will be some sag. Since the pivot points cannot all be in the same plane - there will be some sag.

I came to this conclusion by dropping a plumb bob off the outfeed edge of the outfeed table, at the pivot line of the main table, and then tilting the table from one extreme to the other while watching the plumb bob.

It moves - back and forth and it moves up and down depending on where you hang it from. The closer you are to the center of the pivot point the less it moves.

In a machine shop - we can do this.

Locate that out board support point (on the bottom of the outfeed table) at the exact same location (vertical and horizontal plane of the pivot line) as the trunnions and all is well.

Design the diagonal support mechanism to function on that and you got it.

Enough said. I am happy with a little bit of sag and the fact that I am no longer confused by that sag.

[rpd]

These aluminium angle how thick are they ?
Next time I go to town, I will check with the Home Depot (we do not have any Lowes' Store in Quebec city) I think the nearest one is in the Ottawa area.

They stock the aluminum angle at Rona also.