Page 1 of 4 1234 LastLast
Results 1 to 10 of 39

Thread: Looking for something that will work for this..Now mobile base build.

  1. #1
    Join Date
    Nov 2006
    Location
    Between Aledo and Fort Worth, TX
    Posts
    2,784

    Looking for something that will work for this..Now mobile base build.

    I need to get the mobile base built for the new table saw. I have the design worked out. I'll use a 4X4X81" Douglas Fir on front and back. Four more pieces to cross brace it, one at each of the ends, and 2 for the cabinet to sit on.Where the saw sits will be routed out so that the saw will sit down in a well of sorts so I can get it at the right height.
    I'll use 6 of these Click image for larger version. 

Name:	moble base feet.gif 
Views:	16 
Size:	10.2 KB 
ID:	41150 for the base to sit on and to level it. But I need something for them to screw into. I'm afraid that the regular T-nuts won't be stout enough. With the saw, torsion box extension, the mobile base, casters, built in storage on the right side, and the hardware, I'm guessing it will be somewhere between 800 and 950 lbs. The feet are rated at 500 lbs each, so I know they will be ok. The studs are 1/2", 13 tpi. I wanted to use the floor stanchions that black pipe threads into, but the tpi must be different as a 1/2" 13 tpi bolt won't thread into it. Am I going to have to make something myself? Some 1/4" steel plate with a extra longnut welded to it? I'd like to find something commercially made if anyone knows of something that will work. McMaster-Carr did have a cast alloy threaded piece in a 3/8 16 tpi thread, Click image for larger version. 

Name:	alloy insert.gif 
Views:	17 
Size:	4.3 KB 
ID:	41151 but it isn't rated for what weight it holds. Did look heavier duty than the T-nuts. I could go to the feet that are 3/8", they're rated at 250 lbs each, still plenty of headroom. But I do like the larger floor pad that the 1/2" version has...about 1/2" larger in diameter.
    The casters will pivot down and lock into place on each end. Click image for larger version. 

Name:	G8172.jpg 
Views:	15 
Size:	11.2 KB 
ID:	41149 These bad boys are rated at 500 lbs each! They have grease zerks for the wheel bearings, and for the pivot bearings! I think they will do the trick. And they are only 9.25 each.
    Any other ideas? Know of anything else that might work? As always, thanks for any info you can offer!! Jim.
    Last edited by Jim O'Dell; 01-22-2010 at 02:41 PM.
    Coolmeadow Setters...
    Exclusively Irish!
    Home of Irish Setter Rescue of North Texas
    When Irish Eyes are smiling, they're usually up to something!!
    At a minimum, I'm Pentatoxic...but most likely, I'm a Pentaholic. There seems to be no known cure. Pentatonix, winners of The Sing Off, season 3


  2. #2
    Join Date
    Nov 2006
    Location
    Mountain Home, Arkansas
    Posts
    11,833
    The little red wheel casters should do fine. But, do look for ones that can be locked. Lotsa places sell casters, HF, Northern Tool, Grizzly, etc.
    "Folks is funny critters."

    Think for yourselves and let others enjoy the privilege to do so, too. ~Voltaire

  3. #3
    Join Date
    Nov 2006
    Location
    Between Aledo and Fort Worth, TX
    Posts
    2,784
    Thanks Frank, but the wheels will only be in contact on the ground when it is to be moved. Other wise the wheels are up, and the base will sit on the leveling feet, so it is secure. That way it doesn't have to be re-leveled after each move. I just don't trust the locking casters not to move on me some...especially with this much weight. I just need something that the leveling feet will screw into that will handle the weight. Jim.

    edit: these casters are already in my hands, and they are from Grizzly. Just noticed that I left the manufacturer's name off the original post.
    Last edited by Jim O'Dell; 01-10-2010 at 10:27 PM. Reason: added edit
    Coolmeadow Setters...
    Exclusively Irish!
    Home of Irish Setter Rescue of North Texas
    When Irish Eyes are smiling, they're usually up to something!!
    At a minimum, I'm Pentatoxic...but most likely, I'm a Pentaholic. There seems to be no known cure. Pentatonix, winners of The Sing Off, season 3


  4. #4
    Join Date
    Aug 2007
    Location
    Reno NV
    Posts
    13,364
    Why not just use some 1/4" plate and use a tap to thread it? Or maybe thicker plate and just make your own "T-Nut"? Just an idea.
    Programmer - An organism that turns coffee into software.
    If all your friends are exactly like you, What an un-interesting life it must be.
    "A door is what a dog is perpetually on the wrong side of" Ogden Nash


  5. #5
    I'd drill and tap 6 pieces of 1/4" plate and fasten those to the platform with lag bolts. Screw the feet in with a nut and lock washer on it to lock it in place after you level it.

  6. #6
    Join Date
    Nov 2006
    Location
    Between Aledo and Fort Worth, TX
    Posts
    2,784
    Well, that is a thought. I looked at my HF tap and die set...yes, there is a 1/2" 13 tpi tap. Wonder if it could actually handle cutting threads in the steel???
    I did find these at McMaster-Carr also. Click image for larger version. 

Name:	weld nuts.gif 
Views:	14 
Size:	4.0 KB 
ID:	41159 Has the same diameter flange as the pronged T-nut, (1 1/4") but has 3 holes instead. Called a weld nut. I might order a package of 10, they're less than 7.00. If I don't like what they look like, I might try to tap the 1/4" steel plate. If my HF tap won't work, I can weld these onto the plate!!! Thanks guys! Jim.
    Coolmeadow Setters...
    Exclusively Irish!
    Home of Irish Setter Rescue of North Texas
    When Irish Eyes are smiling, they're usually up to something!!
    At a minimum, I'm Pentatoxic...but most likely, I'm a Pentaholic. There seems to be no known cure. Pentatonix, winners of The Sing Off, season 3


  7. #7
    Join Date
    Oct 2009
    Location
    Bradford, Vermont
    Posts
    425
    I think you're short-guessing the strength of ordinary T-nuts when they're well supported by material around 'em. You might experiment with one embedded in a snug-fitting hole in wood, say in one end of a 2"x2" stick of softwood. Embed one, screw a foot (or a bolt) into it, then treat it for a moment like a pogo stick or one-leg stool. Will it support your whole body weight? VERY PROBABLY. What's six times your body weight?

    I'm pretty positive even a 1/4" T-nut will support your whole body weight without groaning or bending or stripping out. If it does, then the 1/2" size is sure to do at least as well.
    -- Tim --

  8. #8
    Join Date
    Nov 2006
    Location
    Between Aledo and Fort Worth, TX
    Posts
    2,784
    The current plan, as suggested on my thread at the Creek, is to get the unit pictured above, get some steel plate say 3" X 4", drill a hole for the weld nut to fit into, drill and tap holes to line up with the 3 holes in the weld nut, attach, and drill holes in the corners of the steel plate to attach to the wood. Just adds a little to spread out the weight.
    Thanks for the ideas all! Jim.
    Coolmeadow Setters...
    Exclusively Irish!
    Home of Irish Setter Rescue of North Texas
    When Irish Eyes are smiling, they're usually up to something!!
    At a minimum, I'm Pentatoxic...but most likely, I'm a Pentaholic. There seems to be no known cure. Pentatonix, winners of The Sing Off, season 3


  9. #9
    Join Date
    Apr 2007
    Location
    No, not all of SoCal is Los Angeles!
    Posts
    9,077
    I have placed machines on bases using the heavier t-nuts. To avoid lateral pressure issues, I drill the hole in the wood such that the threaded rod of the leveler has to be threaded into the wood. I then counterbore for the t-nut "neck" and screw it down. The t-nut distributes the weight and the leveler shaft is controlled by the wood leg material.
    Any sufficiently advanced technology is indistinguishable from magic.
    - Arthur C. Clarke

  10. #10
    Join Date
    Nov 2006
    Location
    Between Aledo and Fort Worth, TX
    Posts
    2,784
    Thanks Glenn and Tim. I'm sure it would be fine just using the T-nut alone. You're not the first person that has suggested that. But I can spend an extra 18.00 or so now, and improve my odds with what will turn out to be roughly a 2" X 3" X 1/4" thick plate made out of 4140 steel. (They also have 1018 steel, but it has several characteristics that weren't measured, where the the 4140 was listed, and only about 2.50 more.) As hard as it will be to put the saw on the base, if using the t-nuts alone failed, it would be a big hassle to change it out. If the plate and the weld nuts fail, at least I know I did more than the basic to hedge my bets.
    I've always done what you suggest on the barrel of the T-nuts where they enter the wood. Tight fit, lightly hammered in. I also always counter sunk the flange so it was flush with the bottom. I'll probably route out for the steel plate as well. Won't be much of the barrel of the weld nut protrude past the plate...about 1/8", but I'll account for that also. We'll see about letting the threads of the mount cut into the wood. Wouldn't hurt to do so, but not sure how much it would help either. The weight will be carried by the steel on steel threads. Jim.

    I can't divide today! 6 pieces out of 3" X 12" stock will be roughly 2 X 3, not 3 X 3. Corrected in the post above.
    Last edited by Jim O'Dell; 01-19-2010 at 05:12 PM.
    Coolmeadow Setters...
    Exclusively Irish!
    Home of Irish Setter Rescue of North Texas
    When Irish Eyes are smiling, they're usually up to something!!
    At a minimum, I'm Pentatoxic...but most likely, I'm a Pentaholic. There seems to be no known cure. Pentatonix, winners of The Sing Off, season 3


Similar Threads

  1. Mobile base question
    By Mohammad Madha in forum General Woodworking Q&A
    Replies: 8
    Last Post: 11-27-2012, 10:14 PM
  2. Mobile base on a TS?
    By Rennie Heuer in forum General Woodworking Q&A
    Replies: 15
    Last Post: 07-07-2011, 12:38 AM
  3. Mobile tablesaw base
    By Alan Bienlein in forum Carpentry and Construction
    Replies: 23
    Last Post: 02-27-2011, 09:45 PM
  4. Mobile Base for Joiner
    By Sean Wright in forum Jigs and Fixtures
    Replies: 19
    Last Post: 07-02-2010, 10:09 PM
  5. Delta mobile base
    By Rick Levine in forum Hot Deals
    Replies: 1
    Last Post: 09-23-2007, 04:12 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •