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Post by reflector on Dec 21, 2015 23:21:15 GMT -5
Just something I'm working on after seeing some of the track saw tables and some of the knock down designs. I intended this to get used with 2x4s for the sacrificial top in an open-ish top (Nothing stops you from putting in 1.5" locating pieces into a flat top). I'm also thinking about making some kind of top adapter that you can stick in a miter gauge from a table saw so you could replicate some of the MFT/3-y functions (I own an Incra 1000HD and saw videos on the Festool MFT system so I got some ideas now... ) The shallow open slots are cut out for sticking in 2x4s and they're 2" deep so you can take 2x4s out of them and rotate them onto their side to provide support near the cut so the material won't tip into the blade body. I'm also thinking that some of the 2x4s can have dados cut into them so you can stack them other each other. The holes and slots on the frame are for primarily reducing weight and the slots let you stick stuff beneath like your tracks and I'm thinking about wooden clips or some kind of clip on the side so you can hang rails off the table. Thoughts on this design would be appreciated. Edit: Forgot to mention its still a work in progress for the design. Attachments:
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Post by GhostFist on Dec 22, 2015 5:14:53 GMT -5
Are you intending to use this for site work? My only critique would be that it's a lot of parts to assemble. Other than that I like the open frame concept keeping it light. Is there a way to lock all of the joints?
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Post by holmz on Dec 22, 2015 5:54:28 GMT -5
... I'm also thinking about making some kind of top adapter that you can stick in a miter gauge from a table saw so you could replicate some of the MFT/3-y functions (I own an Incra 1000HD and saw videos on the Festool MFT system so I got some ideas now... ) ... ' You can buy the extrusions in 2 meter lengths, or maybe 3M. If you are in the US I am headed there in a few days ,and then again in March. There is no way it would arrive by Friday. So that gives you time think about what you want... I have been thinking, and I think a large "real table" with holes and a track holder would be nice.
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Post by reflector on Dec 22, 2015 11:22:46 GMT -5
Are you intending to use this for site work? My only critique would be that it's a lot of parts to assemble. Other than that I like the open frame concept keeping it light. Is there a way to lock all of the joints? I'm a limited space hobbyist so it'd be for indoors and site work. It'd be about 6 main pieces (The plywood: 2 ends, 2 mids, 2 long supports) and its roughly patterned as a knockdown plywood table like this one: bethepro.com/forums/topic/knockdown-cutting-table/#post-107643
The two 3" ABS pipes I am still debating about, it seems that they're potentially close to a 3.5" holesaw on the OD and I have that in the design as a stiffener. I don't think they're necessarily for plywood but if you were to use the thing as a temporary workbench and start adding dynamic forces ("Using it like an actual workbench") then those pipes could be helpful in distributing the load. Otherwise I had already added 3" OD holes in the first place and on realizing that I had enough material to enlarge them safely to a 3.5" just presented the opportunity.
Right now I have it modeled as 23/32 material and once I finalize the design I'm going to make one before releasing the plans to it. Unless someone really wants to go at it before I finalize it.
The joints will lock up from insertion from the cuts, otherwise the 2x4s on the top should actually make a temporary torsionbox (No glue, just from precise joints) with the dado cuts.
' You can buy the extrusions in 2 meter lengths, or maybe 3M. If you are in the US I am headed there in a few days ,and then again in March. There is no way it would arrive by Friday. So that gives you time think about what you want... I have been thinking, and I think a large "real table" with holes and a track holder would be nice. I don't think you'd need to actually buy extrusions for attaching rail support. I was considering a Eurekazone type parallelogram mechanism for the rail. That'd just clamp onto the parallel members of the plywood. The thing is I like my Incra 1000HD gauge since I can set my miters on it really fast and dial it in to 1/10th of a degree and really good table saw miter gauges are readily available so I considered adding in miter functionality after seeing the MFT/3. It wouldn't be too hard.
But there's problem with the hole-y top for this design: I was considering that after doing some of the initial design. I'll have to check the spacing on the table itself and see if I could make 3 flush segments (That'd be the nice option) or if I'd have to play around with the dimensions. Otherwise it'd be like dropping a hole-y top on the table with the 2x4 reference slots.
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Post by holmz on Dec 22, 2015 15:41:34 GMT -5
I was talking about the MFT flop down piece, which slide into their extrusion. I am interested other options too.
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Post by reflector on Dec 22, 2015 16:35:26 GMT -5
That's one thing on the MFT design that I'd change to something like the Eurekazone system where they use a parallelogram linkage since it seems to lift out of the way easier for stuff that's within 50-60mm for cutting depth.
But staring at how it works, I don't think it'd be too hard to make some sliding dovetails and a wooden cam that'd function the same way for height locking. I just think the parallelogram linkage beneath the table a pretty clever way of lifting the entire rail but also supporting it at the other end.
I still don't think you necessarily require an extrusion if you were to make your own mechanism for the flip down piece or alternatively a parallelogram linkage, you'd just need something that will mount solidly to the table itself and then square up the rail after mounting it.
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Post by holmz on Dec 22, 2015 16:46:09 GMT -5
You only need their extrusion if you are using their parts for the floppy hinge.
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