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Thread: Starting new project - MFT table
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30th June 2017, 06:25 PM #1Intermediate Member
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Starting new project - MFT table
G'day all,
Looking at building large MFT that would act as my workbench / assembly & outfeed table etc.
Few questions, what is the best way to bore the dog holes?
For people who have made an MFT table, did you use the 20mm Festool bit? or something else?
Is alignment accuracy that important? or is close enough good enough? Or get a CNC prof to get it done?
Is there any benefits of sticking with 96mm centers?
I'm looking at doing something similar to the pic below but bigger
My concerns are if I went big, like 2400x1200mm size, would flex be an issue? Or will the cabinetry and MFT top act as a torsion and pull everything tight
Whole thing will be on locking casters.
Considering using 18mm Ply for the whole assembly
With the exception of the top, I'm thinking 18mm MDF
Top will also be covered with 5mm masonite when using it for assembly
Ron Paulk.jpg
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30th June 2017, 07:57 PM #2
Personally I think two at 1200 x 600, or there abouts would be far more useful and probably be in the way less.
There ain't no devil, it's just god when he's drunk!!
Tom Waits
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30th June 2017, 08:24 PM #3GOLD MEMBER
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I have a pair of 8' x 2' made out of a sheet of 24mm ply. I used the LR32 jig and a Festool 20mm boring bit. Unfortunately the Festool clamps didn't fit in a 24mm panel so I had to round over the holes on the back to make them fit.
If you are just going to use the table holes for clamping accuracy is not important but if you are going to use dogs to align the saw rail then accuracy is critical. Having a set of dogs set up to check squareness when glueing is very handy. I use the Clamp Set to clamp against a set of dogs to square up whatever I am assembling.
If you don't intend to use the festool system then the 96mm hole spacing is not important.
If you don't already own the LR32 rail and jig then a cheaper method of going the holes accurately is the Parf Guide from Axminster Tools. You will also need some dogs to make it work but they come in handy for otherthings.
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30th June 2017, 08:51 PM #4Intermediate Member
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Thanks for the input Bohdan.
Table will predominantly be used for clamping down, saw alignment wise, I was thinking of copying what this guy has done with his version of MFT table.
He's put T-Tracks and stops on the side of the table and squared it up with a fence. Worth a look.
https://www.youtube.com/watch?v=dgMy2OZkYeo
I've got the LR32 rail, but everything else missing just gotta wait for more funds at this stage
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30th June 2017, 09:47 PM #5GOLD MEMBER
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Had a look at the video and that is exactly what the earlier version of the MFT top was like with T track all around.
The one thing that he missed was that though he used the dog holes to align his fence he still mounted it on those special short T tracks. All he needed to do was to mount the fence on dogs and it would just drop in dead square into the holes that he had.
If he had used the rail dogs on his rail into the dog holes he would not have needed to make the adaptors to fit the T track.
I have done that with an extended Incra fence and that way I get accuracy, repeatability and the ability to remove the fence and replace it at will.
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30th June 2017, 09:52 PM #6
The Parf guide system is amazing:
I'll definitely be grabbing one of those. My MFT top is getting very ratty indeed.
What a good find Bohdan.
Edit 1 - WWWWWOOOOWWWWWWWWW. I just clicked a few of their other links for "things that go with it" and found these tall Bench Dogs https://www.axminster.co.uk/veritas-...gs-pair-504543 and these location clips: https://www.axminster.co.uk/ujk-tech...ip-pair-102973
I saw up A LOT of MDF, every day. I've made a sled jig to take whole sheets that sucks all the dust from underneath (attached to the DC). I can plonk it down on the bench, lay over a full sheet of MDF and saw it up pretty fast. No dust too.
With these two things I can modify my jig (well, make a new one, coz thats pretty ratty too) and make it so I can keep the rail perfectly aligned and square to the entire big sheet!
YYYYEEEEAAAAHHHHH!!!!!!!!!!!!!!
(This now gives me the perfect excuse to buy those Veritas planes at the same time too )
edit 2 - an additional YYYEEEAAAAHHHHHHHHHHHH!!!!!!!!!!!
Edit 3 (3am!) I've just had an old client come back with a big MDF cut up job. Whaaaat? What's the chance of this happening in 3 hour period! Zero. That's what. I'm going to do up a Sketchup of my new jig idea and release it Open Source.
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