Make an Inexpensive Vibrating Table at Home to Vibrate Concrete Stone, Pavers, Brick and Tile Molds.

You want to make your own concrete stone, tile, bricks, pavers, or steppingstones for a home improvement project.  You have received your molds, concrete colorant, sealer and Free Instructions that you ordered from The Mold Store.com, so you are ready to start production.  You want your concrete stone to be strong, smooth, bug hole free, and a product that you can be proud of.  You also want to cut down on your labor, because the project you have in mind is a few hundred square feet.  And you plan on doing a few more projects in the future.  If that's the case... maybe this inexpensive vibrating table is what you need to speed up your concrete stone production and project.

From time to time we've had requests from our customers for instructions on how to make an inexpensive vibrating table.  If you have a medium-sized or larger project in mind, or even a few different projects that you want to make stone, brick, pavers or tile for, this inexpensive vibrating table should work fine for you.  Basically you just need to vibrate to consolidate your cement.  The instructions were submitted by one of our customers, Bruce Mazzoni.  Thanks again, Bruce.  He has agreed to let us pass them on to anyone who might want to duplicate this concrete vibrating table he designed, for their own use.  While this will probably work fine for the Do-It-Yourselfer, homeowner, and handyman or woman, you will need a much heavier duty table for commercial production and concrete stone business situations.  We at Olde World Stone & Tile, and The Mold Store, have not tried this table out, so we cannot recommend it's use.  If it looks good to you, and you make and use it successfully, please let us know what you think.  We will pass that information on to our customers and Bruce. 
We have had a number of customers give it good feedback, but some are not able to find the recommended hand-held vibrator. 

ITEMS NEEDED:
1.  Chicago Model 90304 Hand-held Concrete Vibrator:  Purchased for $39.99 plus $7.99 shipping (minus a $5.00 coupon)from www.Harborfreight.com for a total cost of $43.98.
2.  One 2'x4'x3/8" sheet of lauan plywood from Lowes for $4.13.
3.  Four (4) each of the following: 1/4-20x1-1/4" bolts, and nuts, locking nuts, and large fender washers for $3.18.
4.  Two Styrofoam 24" wide x 48" length rafter attic vent support. ($3.36)
5.  Three horses or a work bench.  (I had these)
6.  1" x 2" x 24" boards (I used four but you may need six. 

INSTRUCTIONS:
1.  Remove the four bolts of the Handheld Concrete Vibrator that attaches the flat metal base to the motor.  Save the washer and lock washer.  Throw away their bolt nut & lock nut.

2.  Place the base on top of the lauan board and center it in the middle.  With a pencil locate the four base holes onto the board.  Remove the base and drill four holes on the board with a 1/4" bit.

3.  Use the newly purchased 1 1/4" bolts and large fender washers through the bottom of the board, through the drilled holes, and through the vibrator metal base.  Place the board & bolts on the floor so that all the threads are showing through the board and vibrator base.  Mount the vibrator motor back on through the floor base.  Put the washer & lock washer that you saved, back on the bolt, and thread on the newly purchased nut & locking nut.  Tighten the bolt accordingly, being careful not to break the board.

4.  Now mount the 1" x 2" x 24" boards (support rails) on the edges of the lauan board.  I used liquid nails and three 1" screws to secure each board.  This creates an edge to keep the molds from falling off during vibration.  My table is against a wall so I needed only four boards for the sides and front.

5.  Now carefully lean the board sideways against the wall to expose the bottom of the board.  Mount the two Styrofoam 24" wide x 48" length rafter attic vent supports to the board.  I stacked both rafter supports on top of each other.  With a staple gun, staple the rafter support to the bottom of the lauan board.  The Styrofoam rafter will act as a spring, allowing most of the vibration energy to enter into the mold rather than to the work bench or saw horses.  You must have a three point support because the Vibrator is 18 pounds.  I actually raised the center of the vibrating table to keep the molds leaning against the support rails during vibration.  If you have room on your work bench or another table, you can place the assembly on that, rather than the saw horses.

6.  You are almost done.  The hand-held vibrator works using a trigger and safety.  Use electrical tape and wrap tightly around the trigger and safety to assure it is always pressed in, and on.  I actually actually disassembled the handle and by-passed the trigger and safety switch.  I then mounted a toggle switch by the table to be able to turn the table on and off easily. You can also use a power strip cord with an on/off switch mounted in it.  IMPORTANT: Tape the cords to the motor base so the wires do not vibrate lose or break due to stress.  see photo below.

SUMMARY:
Bruce fills eight molds at one time.  Fill directly on top of  the vibrating table, while the motor is in the off position.  Fill each mold about half way to the top with concrete.  Turn the table on, vibrating the air bubbles out and compacting your concrete mix, (about 10 seconds).  Then turn the table off and fill all of the molds to the top, or to the level of the thickness that you want, if pouring a thinner mold.  Once filled, turn the table on for another 20 seconds or so and let the concrete level off.  Turn the table off, remove the molds, and repeat the process.  Bruce says that he has also kept the table running when doing one mold at a time.  The "gang" pouring, eight or so at a time, is faster and you can keep it more under your control though.  Below is an example of eight molds being vibrated.

NOTE FROM OLDE WORLD STONE & TILE:  I would think that a fair amount of trial and error needs to be done to get the proper number of molds you can put on the table and do at a time, the length of time you vibrate the molds, etc.  And there are bound to be other variables that effect the process on an individual basis.  But for $50.00?  For larger projects, it would certainly seem to be a lot easier and faster to make your stone, tile and pavers, with this inexpensive vibrating table, than to vibrate by hand.  As always though... it's your call. NOTE: WE HAVE COME UPON ANOTHER SET OF PLANS IN CASE YOU CAN'T FIND THE MATERIAL NEEDED FOR THESE.  THOSE PLANS ARE ALSO AVAILABLE ON THIS WEBSITE.

Should you need molds or moulds, colorant, concrete sealer, stains, or other concrete, cement, or plaster supplies for your handyman or home improvement project, please visit our catalogue website at www.TheMoldStore.com or our shopping cart website at http://www.TheMoldStore.us  to get ideas.  If you are interested in starting a concrete stone and veneer, or concrete and cement paver, brick or tile business, visit our Olde World Stone & Tile Business Opportunity website at www.Oldeworld.com for full details, instructions and various stone making and other concrete product making packages.  We also offer D-I-Y Packages in our catalogue and on our shopping cart websites.

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Antique Used Brick
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ATTENTION!  WE HAVE BEEN GETTING REPORTS THAT THIS HAND-HELD VIBRATOR IS NO LONGER AVAILABLE FROM HARBOR FREIGHT. A NUMBER OF CUSTOMERS HAVE BEEN REPORTING GREAT RESULTS BY USING A VIBRATING SANDER BOLTED TO THE BOARD.