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Author Topic: MFT dogs with FS cutting guides  (Read 37985 times)
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moody

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« Reply #90 on: March 22, 2012, 12:59 PM »

Any progress with those parallel guide rail bracket? Would love a pair of those!
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« Reply #91 on: March 23, 2012, 01:45 AM »

No however I believe another FOG member may be coming out with a similar product soon which may negate the need for me to pursue it further.

RMW

Any progress with those parallel guide rail bracket? Would love a pair of those!
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« Reply #92 on: March 23, 2012, 01:51 AM »

Rookie,

Glad they showed up quickly, looking forward to your feedback on them.

I like your idea of using attaching the fence to the MFT rail/extrusion to get the extra cutting capacity, I have played with a similar idea but my MFT rail is about 0.030" out of parallel with the holes in the MFT over its length. To keep the fence parallel to the holes I would either need to shim it or figure out a way to make the brackets somehow adjustable.

Hope you like the dogs.

RMW

RMW,

Got my set today.  Super fast turnaround;can't wait to use them tomorrow. Big Grin

Those friction slide clamp dogs, and the narrow cut extensions/clips look very cool as well.  Wonder if the fence could be attached to the friction slide clamps, so the flag stop could be used, but still have the full table width to work with? Just a thought.

You have some great ideas!

Thanks,

James
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Richard/RMW
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« Reply #93 on: March 23, 2012, 01:58 AM »

Glad they fit your MFT correctly, I was unsure how big of an issue this was going to be.

I agree that the angles available using only the MFT holes are pretty limited. Laying in bed just now unable to sleep (almost 2 AM here) I just came up with a way to use a variation of the little block I posted a while ago to attach the MFT fence to the dogs and also make one end adjustable. Stay tuned.

Thanks,

RMW

My MFT's are the new ones and the dogs fit very nicely.  The set is very nicely done and will be a great tool to use.

Quite a long time ago I spent some time figuring what various angles could be achieved using the MFT hole combinations.  As I recall 45 degrees was about the only one that came out even & standard but who's to say with this convenient set some of those other "odd" angles might be useful.
The obvious great purpose of the set will be true 90 degree cuts.

Nice job!   Thumbs Up
« Last Edit: March 23, 2012, 02:08 AM by RMW » Logged

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Richard/RMW
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« Reply #94 on: March 23, 2012, 02:08 AM »

Hey - I turned BLUE and became a "Retailer"... (I think "Tinkerer" may be more accuate).  Big Grin

+/- 8 sets have gone unclaimed and I did my best to notify everyone who had expressed interest early on, I will give it a couple more days and then offer whatever is left on a first-come basis. One of the things I underestimated going in was the time that would be consumed in managing orders and shipping, I will probably default to offering the remaining sets on eBay to leverage their selling tools. I won't be able to do this until early next week and will post an update once I have.

RMW
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RonWen
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« Reply #95 on: March 23, 2012, 07:39 AM »

Rookie,

Glad they showed up quickly, looking forward to your feedback on them.

I like your idea of using attaching the fence to the MFT rail/extrusion to get the extra cutting capacity, I have played with a similar idea but my MFT rail is about 0.030" out of parallel with the holes in the MFT over its length. To keep the fence parallel to the holes I would either need to shim it or figure out a way to make the brackets somehow adjustable.

Hope you like the dogs.

RMW

RMW,

Got my set today.  Super fast turnaround;can't wait to use them tomorrow. Big Grin

Those friction slide clamp dogs, and the narrow cut extensions/clips look very cool as well.  Wonder if the fence could be attached to the friction slide clamps, so the flag stop could be used, but still have the full table width to work with? Just a thought.

You have some great ideas!

Thanks,

James

I've played with using the frame extrusions also however it seems the precision of the hole grids stops with the hole grids -- it could work to scribe layout lines on the work piece cut line and use that to align to the guide rail.  It doesn't provide for creating a true 90 degree edge as with using locating dogs but would get the job done.
« Last Edit: March 23, 2012, 09:02 AM by RonWen » Logged

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« Reply #96 on: March 23, 2012, 07:42 AM »

Hey - I turned BLUE and became a "Retailer"... (I think "Tinkerer" may be more accuate).  Big Grin

+/- 8 sets have gone unclaimed and I did my best to notify everyone who had expressed interest early on, I will give it a couple more days and then offer whatever is left on a first-come basis. One of the things I underestimated going in was the time that would be consumed in managing orders and shipping, I will probably default to offering the remaining sets on eBay to leverage their selling tools. I won't be able to do this until early next week and will post an update once I have.

RMW

Just wait until Shane starts sending you the Festool commission checks for being a retailer -- you'll be in the "pink" again.   Big Grin
« Last Edit: March 23, 2012, 07:45 AM by RonWen » Logged

hrrb

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« Reply #97 on: March 23, 2012, 08:41 AM »

Hey - I turned BLUE ...  Big Grin


What do you mean? Turned blue? I don't see any blue Bosch products in your video.

As far as I can see from those drills/impact drivers you have turned YELLOW Big Grin

Have a nice weekend.
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Emer Construction

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« Reply #98 on: March 23, 2012, 07:50 PM »

Hey - I turned BLUE and became a "Retailer"... (I think "Tinkerer" may be more accuate).  Big Grin

+/- 8 sets have gone unclaimed and I did my best to notify everyone who had expressed interest early on, I will give it a couple more days and then offer whatever is left on a first-come basis. One of the things I underestimated going in was the time that would be consumed in managing orders and shipping, I will probably default to offering the remaining sets on eBay to leverage their selling tools. I won't be able to do this until early next week and will post an update once I have.

RMW
I'll take another set of the unclaimed ones
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Steven
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« Reply #99 on: March 25, 2012, 06:34 PM »

I need input from one of the mathematically oriented FOG members, I think I stumbled onto the mother of all sine bars. I think, based on my untested understanding of how a sine bar works, you can use 2 dogs to align the MFT fence to any angle just by calculating the sine angle (I am probably mis-stating this) and cutting the proper length of sine block?

These dogs are 24mm diameter and (in this example) 288mm on center (96mm X 3).



Am I correct that offsetting one end of the fence from the dog by the calculated amount will give an accurate angle, or am I missing something?

Where this is relevant is that I am trying to come up with a simple method to use the dogs with the fence at any angle and this would be a simple solution that anyone could implement without a bunch more hardware. These photos show a simple block in use at one end of the fence that holds it tight to the MFT and dog.





I tested this cutting a 45 degree angle and it came out perfect but I want to be able to set any angle.



Little help anybody...  Huh? Huh?

RMW




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John2532
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« Reply #100 on: March 27, 2012, 07:20 PM »

RMW, there are alot of trig calculators online that will give the info you need.  I played with something similar a quite awhile ago and it worked, but for my use, I didn't feel it was much of an advantage over the MFT/3 protractor/fence.  If you were consistently cutting the same angles and wanted a fast set up you might find it more useful.



The plate is mounted on a 20mm stub and different angles can be achieved with a simlpe rotation.  The fence could have been improved but the project was just shelved instead.
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RonWen
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« Reply #101 on: March 27, 2012, 07:37 PM »

I need input from one of the mathematically oriented FOG members, I think I stumbled onto the mother of all sine bars. I think, based on my untested understanding of how a sine bar works, you can use 2 dogs to align the MFT fence to any angle just by calculating the sine angle (I am probably mis-stating this) and cutting the proper length of sine block?

These dogs are 24mm diameter and (in this example) 288mm on center (96mm X 3).

[ ERROR: SPECIFIED ATTACHMENT MISSING ]

Am I correct that offsetting one end of the fence from the dog by the calculated amount will give an accurate angle, or am I missing something?

Where this is relevant is that I am trying to come up with a simple method to use the dogs with the fence at any angle and this would be a simple solution that anyone could implement without a bunch more hardware. These photos show a simple block in use at one end of the fence that holds it tight to the MFT and dog.

[ ERROR: SPECIFIED ATTACHMENT MISSING ]

[ ERROR: SPECIFIED ATTACHMENT MISSING ]

I tested this cutting a 45 degree angle and it came out perfect but I want to be able to set any angle.

[ ERROR: SPECIFIED ATTACHMENT MISSING ]

Little help anybody...  Huh? Huh?

RMW


You are 100% correct.  In your example you've created a sine bar -- as long as the ply(?) changes length precisely, the angle change will also be precise.  You carefully could make a set of "gage blocks" for the common angles that you use.
The only caveat is that you use known lengths for the other two sides of the triangle.  http://www.longwood.edu/assets/chemphys/appc.pdf

How to Set Up and Use a Sine Bar
« Last Edit: March 27, 2012, 07:43 PM by RonWen » Logged

Richard/RMW
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« Reply #102 on: March 27, 2012, 10:12 PM »

Thanks John and Ron, this nails down for me how to set up for easy angled cuts.

Still have 5 sets of dogs remaining, PM me if you are interested. So far they have gone to Thailand, France, Ireland, Canada and all over the US, all to FOG members. Hoping to get some feedback soon.

RMW
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mhch

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« Reply #103 on: March 28, 2012, 07:50 AM »


Just received my set this morning in France ... Shipment took 8 business days, USPS announcing 6 to 10.

The dogs perfectly fit the holes of my MFT2/1200, but not those of my MFT2/800 extension which are a tiny bit smaller. No surprise since I already experienced the same problem with my 20mm PVC pipe dogs. This is not really a problem as I only use dogs on the larger table.

What I really like

1) getting rid of the Festool guide rail supports, which I hate removing/reinstalling/checking when I need to lay a large piece on the table.

2) The design of these dogs make them very stable on the MFT, and there is no way they can fall across the holes, unlike my 20mm PVC pipe dogs

Thanks Richard.
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« Reply #104 on: March 28, 2012, 08:13 AM »

Michel,

Glad to hear they made it quickly and fit where you needed them to; minor differences in MFT hole sizes is the Achilles Heel of using dogs.

I would appreciate you posting further feedback after you get to use them for a while.

Thanks,

RMW




Just received my set this morning in France ... Shipment took 8 business days, USPS announcing 6 to 10.

The dogs perfectly fit the holes of my MFT2/1200, but not those of my MFT2/800 extension which are a tiny bit smaller. No surprise since I already experienced the same problem with my 20mm PVC pipe dogs. This is not really a problem as I only use dogs on the larger table.

What I really like

1) getting rid of the Festool guide rail supports, which I hate removing/reinstalling/checking when I need to lay a large piece on the table.

2) The design of these dogs make them very stable on the MFT, and there is no way they can fall across the holes, unlike my 20mm PVC pipe dogs

Thanks Richard.
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« Reply #105 on: April 01, 2012, 11:13 AM »

PM sent for a set.
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kfitzsimons

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« Reply #106 on: April 01, 2012, 11:58 AM »

I received my set a few days ago and they do fit my mft 1200. Very tight, but I'd rather have that than loose. I don't have any projects coming up for awhile to use them, but I'm with Michel, it'll be nice not to have to use the guide rail fittings. Much easier to use these.
Thanks for coming up with these and making them, Richard. Beautifully done!
    Kevin
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« Reply #107 on: April 02, 2012, 10:02 AM »

Glad they fit, it looks like the diameter is hitting the sweet spot, i.e. not too tight, not too loose.  Big Grin

I spent the weekend in my small work-shed using them on my MFT in every possible orientation, one of the best aspects to the system is I can change cutting direction on the MFT in a matter of seconds. The open work area inside the shed is less than 8' by 8' and it gets a bit cramped when working on long materials, which is where the flexibility some in handy.

To illustrate - these photos show my nearly completed staircase with the flush mounted in-swing door to the pantry.







All the maple was trimmed to length using the dogs after being cut, routed, sanded on the MFT. Not having the rail permanently mounted to the table made it much easier to move from one operation to the next.

In case anyone is wondering, the large drawer contains the cat litter box, there is a small cat door to be installed in the opening to the right of it and some trim and then I can check this project off my list and move on to the bedroom soffit.  Thumbs Up Thumbs Up Thumbs Up


I received my set a few days ago and they do fit my mft 1200. Very tight, but I'd rather have that than loose. I don't have any projects coming up for awhile to use them, but I'm with Michel, it'll be nice not to have to use the guide rail fittings. Much easier to use these.
Thanks for coming up with these and making them, Richard. Beautifully done!
    Kevin
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Richard/RMW
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« Reply #108 on: April 02, 2012, 10:17 AM »

SOLD OUT!!!

Many thanks to everyone who participated in this project, I am hoping to get some feedback (good or bad) and if it is generally positive I can make another batch. Those who bought them please chime in with any comments or suggestions.

My inclination, if I do this again, is to make one standard dog and have the pin as an add-on that threads in. I would also add one more item, the MFT fence clamp shown here:





The clamp attaches the stock MFT fence to the forward pin-dog, and one more dog is used to line it up at either 90 or 45 degrees to the rail. This setup also works with the fence clamp that comes with the MFT, using it you can adjust the fence to any angle.

Thanks again and please post feedback regarding how you are using them.

RMW

PM sent for a set.
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Alan m

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« Reply #109 on: April 02, 2012, 01:32 PM »

got my set today. fit was very tight  but fit with a push and had to push from underneeth to remove. that will hopefully mean high acuracy.
didnt try the other parts yet but they look great

report back  later
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now
ts 55+2 1400 rails+ 1 lr32 1400 rail, domino+assortment systainer+ domiplate, ct 22 with boom arm+home made thien baffel, lr32 set, rotex 150, home made MFT,home made work center, 6 t locs for other tools, of2000 , ro 90, mft 800, trion , ls 130
wish list
of 1400, MFT 3,, even more t locs for other tools


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Robert

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« Reply #110 on: April 02, 2012, 02:43 PM »

Received my set last week . Fit my MFT-3 just fine.Make  things a lot easier.I would like an MFT Fence clamp too. What are the chance s of sending me one.I think I have a $3.00 credit with Rip-Dog Thanks ,Robert Smile
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« Reply #111 on: April 02, 2012, 03:13 PM »

Robert, glad they fit. Have you used them much?

At this point the only fence clamp in existence is the one I made to test the idea, I will make them if I do another round of dogs.

In the meantime you can get by with a block of wood with 2 holes, 1/2" for the pin and 1/4" to bolt to the fence. Just make sure it is sized to pull the fence snug to the dog (5.5mm from edge of 1/2" hole to edge the side that touches the fence) and it will align itself to the MFT holes precisely.

Thanks.

RMW


Received my set last week . Fit my MFT-3 just fine.Make  things a lot easier.I would like an MFT Fence clamp too. What are the chance s of sending me one.I think I have a $3.00 credit with Rip-Dog Thanks ,Robert Smile
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« Reply #112 on: April 03, 2012, 03:51 AM »


I think there is somewhere on the Internet (may be from Marcel Paul) a video showing how to attach the MFT fence to the side of the MFT using two of these Festool devices initially intended to secure firmly one end of the fence.

This requires to make sure the fence is parallel to the proper hole alignment, using dogs and a spacing block.
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Robert

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« Reply #113 on: April 03, 2012, 02:34 PM »

Yes!Iam using The Clamping Elements  0n one side of the fence to keep it Parallel. Rip- Dogs on the other side! Works well.
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Emer Construction

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« Reply #114 on: April 04, 2012, 10:48 PM »

I got a chance to use the dogs on the mft.  I really liked it.  I felt that my cuts were more accurate. I never cut any angles on the mft, so I'm glad to get that big thing off of there.  It was really easy to make some cross cuts, clear the table to do something else, then drop right back in with perfect square cuts.  The only two down sides I can think of now are, that you loose some capacity, and now you need a place to put the rail after a cut.  I got my Incra track and stop today.  Still haven't had a chance to make my Ron Paulk table, but that's the plan.


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Steven
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« Reply #115 on: April 05, 2012, 03:47 AM »

I got a chance to use the dogs on the mft.  I really liked it.  I felt that my cuts were more accurate. I never cut any angles on the mft, so I'm glad to get that big thing off of there.  It was really easy to make some cross cuts, clear the table to do something else, then drop right back in with perfect square cuts.  The only two down sides I can think of now are, that you loose some capacity, and now you need a place to put the rail after a cut.  I got my Incra track and stop today.  Still haven't had a chance to make my Ron Paulk table, but that's the plan.




Up to now I use a fence made from an incra track attached to a piece of MDF, itself screwed on top of the side rail or laying on the MFT top as described in this FOG post

An idea that came up while reading your reply is to build MFT extensions with one support leg, may be just cutting a spare MFT top into two pieces, and laying each piece on each side of the MFT top,  aligning them using dogs through holes in both part and the MFT top. This way one can have a larger cut capacity when needed, and this with a much easier setup than trying to align two MFT side by side.

Hope what I describe is understandable (English is not my native language)
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Emer Construction

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« Reply #116 on: April 05, 2012, 09:41 AM »

I got a chance to use the dogs on the mft.  I really liked it.  I felt that my cuts were more accurate. I never cut any angles on the mft, so I'm glad to get that big thing off of there.  It was really easy to make some cross cuts, clear the table to do something else, then drop right back in with perfect square cuts.  The only two down sides I can think of now are, that you loose some capacity, and now you need a place to put the rail after a cut.  I got my Incra track and stop today.  Still haven't had a chance to make my Ron Paulk table, but that's the plan.




Up to now I use a fence made from an incra track attached to a piece of MDF, itself screwed on top of the side rail or laying on the MFT top as described in this FOG post

An idea that came up while reading your reply is to build MFT extensions with one support leg, may be just cutting a spare MFT top into two pieces, and laying each piece on each side of the MFT top,  aligning them using dogs through holes in both part and the MFT top. This way one can have a larger cut capacity when needed, and this with a much easier setup than trying to align two MFT side by side.

Hope what I describe is understandable (English is not my native language)



I did see your pictures in that post before i ordered the incra track.  i purchased these to mount the track and they work great.  Very solid, track comes off and goes back on really easy.  I already have a top that I will make into maybe 5' x 8' table.  Was gonna be 4x8 but soon realized you need space for the dogs.  Do you have a hard time reading the tape and setting the stop on the far side of the table?  wans't sure if this was going to be an issue.
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« Reply #117 on: April 05, 2012, 11:46 AM »

Thanks for the pointer to these devices. I built my fence before such dog accessories existed, but now it's time for an upgrade using something like that. But I like this idea of using "extension tops" that just rest on the MFT top, one on each side, when more cut capacity is needed, using 20mm dogs running across holes in the extensions into those of the MFT top.

In reality I use a stick with a tape attached to it to set the stop, the stick against the Incra track, and moving the stick along the Incra track to align the proper tape reading with the kerf. Then I set the stop.
If needed I move to the opposite side of the MFT when doing this, so reading is easy.
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Emer Construction

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« Reply #118 on: April 05, 2012, 12:26 PM »

Thanks for the pointer to these devices. I built my fence before such dog accessories existed, but now it's time for an upgrade using something like that. But I like this idea of using "extension tops" that just rest on the MFT top, one on each side, when more cut capacity is needed, using 20mm dogs running across holes in the extensions into those of the MFT top.

In reality I use a stick with a tape attached to it to set the stop, the stick against the Incra track, and moving the stick along the Incra track to align the proper tape reading with the kerf. Then I set the stop.
If needed I move to the opposite side of the MFT when doing this, so reading is easy.
I gotcha...maybe something like this to attach the side wings to the mft? they are made for the kapex, but isn't it the same profile as the MFT?
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« Reply #119 on: April 05, 2012, 12:51 PM »


Yes that would be a nice articulated attachment, thanks for the tip. Unfortunately my MFT is of the 2nd generation, no V grove on the side rails  Sad
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