Plowin up the new TTrack

[David Iannone]

It hasn't even been a month since I put the ttrack in table. Today while I was cutting the plenum into the table I got into it....LOL

Note to self: After tool change, remember to rezero Z. And don't rush so much......:D

Dave

[scottp55]

Jeez Dave!! I would NEVER do something like THAT :rolleyes:
Actually this was a single line font that was Supposed to be .15" deep and somehow I typed in 1.5"!!
Burning Teak smells like melting bittersweet chocolate:)
So I learned the little itty bitty . HAS to be in the right place:)

It looks like it was ramping up JUST before the crash? Is that the famous "Mad Spacebar Dash"?

[chiloquinruss]

For Sale - three slightly used hold down clamps. Only been used to break $38 bits. Has some shiney spots that don't effect the breaking of bits. Make Offer! :D Russ

[scottp55]

Customized Shopfox Clamp with matching screws available:)

[gc3]

panel assembly screws left in panel by other shop...although not a clamping or t track breakage...still kinda tough to hear the silence when the bit breaks

[tlempicke]

Here is a great suggestion for the good folks at shopbot. Set the software so that ay time the depth of cut exceeds a certain value the numbers change color to alert you!

[cowboy1296]

My t tracks and clamps have nicks all over them, I thought that i was the only one that did that.

[scottp55]

Tom, That would be more the Vectric side of things, and think it might be very cumbersome. I already swear enough when I use an engraving bit from Tool Database and it tells me "depth of cut exceeds....." so now I made a category "Engraving/described as VBits" to get more DOC, messes preview slightly, but worth it.
We ARE SUPPOSED to have some common sense after all:)
IF I had been paying the Slightest attention, I would have noticed it was carving the same P at 1/2"Diameter passes OVER AND OVER again!!! But was looking at adhesive instructions, and first clue was spindle BOGGING?!!!!! SPACEBAR!!!!! kind of amazing how long 2 seconds is before it retracted.
I smoked bit/collet/nut :( $

[David Iannone]

I turned away for one second, by the time I saw it in progress it was too late. Hit spacebar about 3 dozen times in 2 sec. (I know it only takes one press on the keyboard.....but)

Just ordered the Kent CNC dust shoe. It looks like a good design and I suspect it would "break away" since it's held with magnets in a similar smash and grab shituation?

No profit for me today!

Dave

[MogulTx]

David,

I have the Kent. It sits higher up and the "horse hair" does not seem to grab very much. It also seems to draw a bit better. ( You do have to run the DC to the front- where your router is. I actually like it just fine. I hope you find it to be a good choice also.

The part I like best is that I can jack my spindle to 3" and pull the dust shoe off, change bits, re-install dust shoe and be ready for C2 in a very short period of time. I need to see about a shorter bristle shoe. That might pick up more of my debris than this long one. But I still love it.

Monty

[Xray]

Adds to the spoilboards character !

[Brady Watson]

FYI - SB sells the parts you broke individually...Or you can use Q-bond or Bondic to fix it. Any of those options is cheaper than a new one. The Kent is nice if you don't have it in you to use your CNC to make one.

-B

[myxpykalix]

This is why i don't use t track....because i would hit it for sure. I also do not use any metal in my holddowns. I have a jig that holds the part to a 90 degree corner then i just have a piece of mdf or pine that i shove up against it and screw it down to the mdf jig.
I also for a lot of situations don't use dust collection. I want to see where the bit is going and if you hide it inside a dust collection hood you can't see danger before it happens.

[David Iannone]

Thanks Monty, I went ahead and got the standard shoe, 2" brush ring and 2 of the .5" spacers. I am defiantly looking forward to easier access to tool changes.

Brady, yeah I did realize I could get the new plastic piece from SB for $45, but truth be told I have been eyeing the Kent show for quite a while now. I had considered making my own, but I don't think I could have done as nice a job as the kent setup. Plus I tend to procrastinate on projects for myself. It would have kept getting pushed aside.

Dave

[curtiss]

I skipped the track and simply drilled 1/4 inch holes through the "high spots" in the vac plenum / which have worked pretty well for a long time. (the plenum is covered with trupan)

No problems with the use of the vac table from what I see.


The holes can also be used for "Pull down" where some lag screws hold the workpiece from the bottom... works great but you have to miss the screws.


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[David Iannone]

Curtiss,
I think that is a great idea.

Looking back on it now I have had my vac table with ttrack up and running a few months now and I made it a 8 zone. I thought I knew what I needed, but now realize I went with way too many zones first of all. Second is when I do need to clamp, my track is rarely in the right places. I think I could get away with 3 zones. a 4x4 and 2- 2x4. Sure would of saved money on the dang ball valves. And the ttrack only LOOKS cool (imo) I should have put the money into a new PRS style longer z and just had a ttrack insert piece (maybe 4x4) to throw on the table and hold it with the vac hold down. As well as putting in some inserts like you speak of. Or making specialty jigs etc.

But, this was my first rodeo with any other hold down than just a MDF table and screw hold down so I went a little overboard. But I must say the Vac hold down is awesome, working great. Well worth the money and time. Only thing I should have done is do 4 motors instead of 2.......but I did build the box design for 4 motors and pluged the other 2 ports so I can at least add 2 more motors in the future.

At the end of the year I might just rip the table down to the stringer again and start over now that I THINK I know what I am doing.....LOL

Did you put some kind of threaded insert in the 1/4" holes?

I just got the Kent CNC Dust shoe in today. It is super cool. I am not trying to short change myself, but I now know after seeing with my bare hands that I am happy I bought one instead of making one. But thats just me. I only use my CNC for basic stuff and cutting signs. I am not smart enough to design such a nice gadget.

I look at like this.....I just bought the Donek Drag knife tools a month or two ago. I know you don't need this tool to cut coro and cardboard clean. (although I have had NO luck doing so prior). The Donek tool is like the Kent shoe. A specialty tool, one time fee, should last forever and should pay for itself very quickly in time savings, and does its job flawlessly. Good specialty tools are not cheap. But once you have them you are like "why the heck didn't I get this years ago when I saw it?"

Dave

[curtiss]

The holes I used were placed at 5 1/2 inches center to center.

I thought I might have to tape the bottom of the hole when using the vac but did not find that necessary.

I inserted some threaded tee nuts on the bottom of the 1/4 in holes and use a basic wood hold down clamp with a long slot above.

http://www.fastenersuperstore.com/category/tee-nuts?pid=5971&gclid=CIOq-veuzsUCFYI8aQodIgIAPA

I use one big 48x48 zone without any plumbing... I "zone it" with plastic on top....:rolleyes:

[ntraub01]

The Kent dust shoe is worth every dollar!

We had sporadic issues with the OEM dust shoe and it usually resulted in a huge panic and material loss as well as some not so great grinding sounds from the steppers. Since installing the Kent shoe I could not be happier and we no longer have to watch the machine like a hawk. Having the DC on the front of the machine was actually a good thing for us as we have a laser transformer mounted to the back of the gantry which always wanted to grab the DC hose when somebody wasn't watching like a hungry hawk.

We purchased both the short and long haired bristles as well as a spacer, yet we are going to soon purchase another spacer because of the extended shank on our surfacing bit. (Large surfacing bit = huge amount of dust!)

Honestly, I'm surprised SB hasn't worked out a partnership with Kent to replace their OEM dust shoe with the Kent system. In my opinion, the OEM shoe is the only part that "feels" cheap out of the entire SB system.

[elcar903]

ah the Z zero issue lol, have done that a few times myself.