This has been on the project list for a long time. Originally I was going to make it free-standing, later I decided to find a way to fit it inside the shop footprint. After spending an hour rummaging thru the 80/20 boneyard today I found some pieces that added up to a Version 1.0 attempt. Ripping:



Crosscutting, where I'll use the 3rd set:



Basic setup:





Hardware for one set:



4 screws hold them together. Disassembled the hardware be slid along the work surface for storage:



This setup uses the 1515 sacrificial cutting thingies I already have, they get used constantly. I seldom cut on the MFT surface anymore, mostly I just plop a couple of these on the work surface and use the Rip Guides or TSO square for everything.

Full disclosure: I haven't attempted a cut yet. There is enough length to rip a full sheet of ply, I made up 3 sets of hardware and hope to try it out tomorrow.

RMW

I made your 1515 extensions years ago and use them.  This is a nice addition to that idea.

Great work and inventiveness!

Finally got a chance to use this setup, I'm thinking it's a keeper in some form. I handles breaking down 4 by 4 sheets with no problem (whacked in half @ HD to fit in the SUV).

Made the first cut 10mm oversized, set the guides to finished width for the second rip then rotated the first rip & trimmed off the factory edge to bring it to final size.





It's surprisingly comfortable to use in this orientation, I was concerned about it being awkward but with the guides clamped to the sheet the saw is very stable.

Repositioned the pins to a comfortable height and made the crosscuts to length.



Biggest immediate benefit is the main worksurface remains open instead of needing to use it for cutting sheet goods. I can leave the cutting setup in place and keep working on the project. This is a huge thing in a tiny workspace.



Next is figuring out some stops for repeat cuts and integrated clamps to speed up the process but overall I'm encouraged.

RMW

Well done Richard, it's amazing what you can do with little 

Brilliant idea...gets me a thinking...hummm

  to the FOG for your uh! first post 

I really like seeing the clever innovation of a project like this...  Keep em coming!

Could you tell me details about the hardware you used to fasten the sacrificial wood to the 80/20?  I am also curious what kind of t slot post or bolt you used to fasten the dogs to the 80/20 aluminum extrusion.  I have some 15 series 80/20 in the shop and this project inspires me to be creative.

@Cut Once Hi & welcome to the FOG.  Having 80/20 in the shop inspires me to fiddle a lot...

The MDF is just attached using 7/8" countersunk (flat head) socket cap screws, 5/16" or 1/4" with tee nuts. Those round supports are bored/tapped 5/16" and use their drop in stud. It fits in the slot and then rotates 90 degrees when you tighten it up. They are handy for anything that needs to be moved around a lot.

Thanks,

RMW

Quote from: Richard/RMW on January 17, 2020, 02:23 PM

Quote from: Cut Once on January 17, 2020, 01:35 AM

I really like seeing the clever innovation of a project like this...  Keep em coming!

Could you tell me details about the hardware you used to fasten the sacrificial wood to the 80/20?  I am also curious what kind of t slot post or bolt you used to fasten the dogs to the 80/20 aluminum extrusion.  I have some 15 series 80/20 in the shop and this project inspires me to be creative.

@Cut Once Hi & welcome to the FOG.  Having 80/20 in the shop inspires me to fiddle a lot...

The MDF is just attached using 7/8" countersunk (flat head) socket cap screws, 5/16" or 1/4" with tee nuts. Those round supports are bored/tapped 5/16" and use their drop in stud. It fits in the slot and then rotates 90 degrees when you tighten it up. They are handy for anything that needs to be moved around a lot.

Thanks,

RMW

Thanks for the kind welcome Richard/RMW, this group is full of active members with great information, glad I joined.

Did you make those supports yourself?

Thanks,

Yep. 80/20 sells the round extrusion as well as the t-studs. Just cut to length & tap.

RMW