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Project: V4™
Auto-Cycling Venturi
Vacuum Press Kit
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Additional Pictures: 4

Regular Price:
$399.95
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$279.50   ($120.45 Savings!)
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Product Description


Project: V4 Vacuum Press System

Build your own air-powered vacuum press with the Project: V4™ kit and our simple step-by-step assembly instructions. The most significant improvements over the previous version of the system are the simplified wiring process (now 12v DC) and the new vacuum manifold assembly. This is the best vacuum press kit we've ever offered.


No Additional Parts Needed
Everything you see in the picture is included with the V4 kit. This includes the redesigned carrier assembly made from finish-grade birch plywood as well as the high-flow vacuum filter and our quick-connect vacuum fittings. We also include the power cord and handle. PVC cement is not included but it's readily available at most hardware stores.

How It Works
This vacuum press uses your air compressor to create vacuum for veneering and clamping. The system automatically shuts off air flow to the vacuum generator (also called a venturi) when the desired vacuum level is reached so your compressor does not run continuously. No modifications are done to your air compressor. The flow of compressed air stops when adequate vacuum is created within the V4 system. Your compressor will only turn on as pressure is needed to refill its air tank.

Kit Instructions: Click here (free PDF download)
Vacuum Press FAQ:
Click here


Kit Contents

Vacuum Parts
  • Vac Pro Venturi with Silencer
  • 3" x 15" Schedule 40 PVC Pipe (x2)
  • 3" PVC Caps, Tapped (x2)
  • 3" PVC Caps, Un-Tapped (x2)
  • Heavy-Duty Check Valve
  • Vacuum Gauge
  • Vacuum Controller
  • High-Flow Vacuum Filter
  • Lock-On Vacuum Connector
  • Braided Vacuum Tube (10 ft.)
  • Quick-Connector Assembly (3-piece)
  • Black Hi-Flex Tubing (2 ft)
Electrical Parts
  • Rocker Switch
  • DC Power Jack w/ attached connectors
  • Electric Air Valve (12v DC)
  • Power Adapter (8 ft. cord, 12v DC)
  • Electric Box (pre-drilled)
  • Electric Box Cover (pre-drilled)
Brass Fittings
  • Vacuum Valve
  • Brass Cross Fitting
  • Straight Barb Fittings (x2)
  • Barb Elbow Fitting (x3)
  • Barb Tee Fitting (x2)
  • Pipe Fitting (1.5")
  • Pipe Fitting (2")
  • Pipe Fitting (3")
  • Small Barbed Fitting
Miscellaneous Parts
  • Metal Carrier Handle
  • Thread Sealing Tape
  • Bungie Cord (12")
  • Compressed Air Fitting
  • Assembly Screws (x14)
  • Plastic Spacers for Venturi (x4)
  • Compressed Air Quick-Connector
  • Birch Plywood Carrier (6 pieces)
  • Various Screws (x16)

Check Your Air Compressor Before Ordering!
Be certain that your air compressor can supply the required air flow to generate vacuum. Insufficient air supply will prevent the V4 system from correct operation.
 
Vacuum Press Help
Project: V4™
Version
Vacuum
Flow
Air Demand
@ 80 PSI
Air Demand
@ 90 PSI
Maximum
Bag Size
Mini™ .5 CFM .8 CFM 1.2 CFM 2' x 4'
Basic™
1.2 CFM
1.8 CFM
2.2 CFM
4' x 4'
Plus™  Our most recommended version of this kit!
3.2 CFM
4.8 CFM
5.5 CFM
4' x 9'
Premium 5™ 5.5 CFM 7.8 CFM 9 CFM 4' x 12'
Premium 9™ 9 CFM 12.5 CFM 14 CFM 6' x 15'

Project: V4™ Features

Venturi WarrantySimplicity: The entire system can be built in less than 2 hours. You will find the process of building your own vacuum press very rewarding. No soldering or advanced electrical skilll is required to assemble the system. The electrical wires have the connectors already attached!

Strength: This system is capable of generating up to 1,785 lbs of pressure per square foot at sea level using a very powerful venturi that comes with a lifetime warranty.

Easy Assembly: The V4 kit was designed for quick assembly and the kit instructions are the best I've ever offered. It's a free download so you can check it out before ordering.

Vacuum Storage: The vacuum valve allows the system to be pre-charged with vacuum to increase the initial pull down speed.

Adjustability: The vacuum controller has an adjustment screw that allows you to dial in your desired level of vacuum. You'll find that 21" of Hg is ideal for most veneering projects. The system is adjustable from 10.5" to 25.5" of Hg. An alternate vacuum controller for low vacuum applications is available here.

Versatility: The V4 kit comes with an 8 foot 120v AC power adapter for US power outlets or you can opt for a 5 foot 240v power adapter for UK, EU, and AU outlets.

Speed: The Project: V4 system will create vacuum slightly faster than previous versions of our venturi system due to an improved pneumatic design.

Air Efficiency: The venturi component is precision-milled in the USA and designed with strict efficiency requirements. This means even smaller compressors can pull down average size vacuum bags.

Electrical Efficiency: The system runs on 12v DC and uses less than 6.5 watts when the system is recharging vacuum. The V4 system draws no power when it cycles off. Keep in mind that the electrical consumption of your air compressor will vary.

Quality: Each part of the V4 kit has been selected for durable and reliable operation. Many of the core components have been used in our other kits for more than 10 years.


gal-wheeler.jpg




Why does the V4 kit cost $34 more than the V2 kit?
The Project: V2 kit requires approximately $60 worth of additional items from the hardware store to complete the system. In the chart below, the total cost to build the V2 system includes all of the additional parts. It's well worth the $34 difference to get the V4 kit because it includes the hardware store items - including the PVC pipe, PVC caps, power plug, electric box, cover plate, switch, and much more. The V4 kit also includes our vacuum filter, quick-disconnect hose assembly, and the new pre-cut carrier assembly made from a very high quality birch plywood.

Total Cost to Build Comparison Chart      (prices do not include PVC cement)

Kit Version  Project: V2™
 Project: V4™
Difference
Mini™
$245.50 $279.50 $34.00 More
Basic™ $245.50 $279.50 $34.00 More
Plus™ $255.50 $289.50 $34.00 More
Premium 5™ $328.00 $362.50 $34.50 More
Premium 9™ $356.00 $390.50 $34.50 More

Are the assembly instructions included with the V4 kit?
I do not include printed instructions with the kit because it's too wasteful. Most people have already printed and read the assembly instructions before they order... something I highly recommend.

Does the V4 kit take less time to build than the V2 kit?
Yes. The V2 kit takes two to three hours in addition to the time it takes to pick up all the miscelleneous parts at the hardware store, cut the carrier pieces, cut the PVC pipe, and tap the PVC caps. The V4 kit includes pre-tapped PVC caps, pre-cut PVC pipe, and a ready-to-assemble birch plywood carrier. Once you've read the kit instructions, assembly should take just under two hours. When I built the prototype models here in my shop, I was able to assemble an entire V4 kit in 40 minutes.

Does the V4 kit include a vacuum pump?
This system uses a venturi unit to create vacuum with compressed air. It does not include or use a vacuum pump.

Does the V4 kit include an air compressor?
The kit includes everything shown in the main picture of this system. It does not include an air compressor.

If the other system is called a Project: V2, then why is this not called Project: V3?
We did have a Project: V3™ kit a few years ago but one of the key component suppliers went out of business. It was a short-lived system in which I may have only shipped 20 to 30 units. If you are one of the lucky few that has the V3 system, you've got a great tool in your shop!

Will this system have enough force to bend strips of wood so I can make bent laminations?
This is a difficult question to answer because it depends on many factors such as thickness, species and grain direction. It will also depend on the radius and complexity of the curves that are being used on the project. At sea level, a vacuum press can create up to 1,750 lbs of clamping pressure per square foot. You will need to decide if that is enough for your bending project.

How does my altitude affect the maximum vacuum level of this system?
There is a loss of approximately 1" of Hg for every 1,000 feet above sea level. For example, at 5,000 feet above sea level the most vacuum this system will create is 20.5" of Hg. The generally accepted minimum for vacuum pressing a veneer is 17" of Hg. Since this system has a maximum vacuum of 25.5" Hg at sea level, it is not suitable for users above 8,000 feet.

What can I do if my air compressor falls short of the requirements for the venturi?
The system will not work if your air compressor can not create the required air flow for the venturi. In this case, the venturi will only achieve partial vacuum. Some users have reported that the "work-around" found at this link helps if the air compressor is slightly under-powered.

How much does the system weigh?
The complete system weighs approximately 18 lbs.

What power source is required?
The Project: V4 kit requires standard US 120v AC. The system uses a power adapter to supply the system components with 12v DC.

Is there a version for 220/240v AC users in Europe, United Kingdom, and Australia?
Yes. Please choose the 240v AC option and we will ship you a version that works with your power type in these countries. Click here to see a picture of the adapter we send for 240v AC users. Please note that the cord length for this option is 5ft. This power option is not suitable for use in Italy, Switzerland, Brazil, Chile, or South Africa.

Why does the venturi require more CFM at higher PSI? Shouldn't it be lower CFM at higher PSI?
We have two topics that are being co-mingled. The first is how much air flow can a compressor generate when the flow is unrestricted, and the second, how much air is flowing out of the compressor when it is connected to a device that restricts its flow.

This question makes a valid point about compressors having higher output flow rate (CFM) at lower pressures. The key here is the conditions where this is true. Higher flow rates at lower operating pressures result from having little to no restriction on the output of the compressor. As the restriction increases, the pressure in the compressed air line will increase and the flow decreases.

When air leaves a compressed air line and shoots unrestricted into the atmosphere, the pressure in the air stream, once it exits the compressed air line, is 0 PSI. To prove this, place a "T" fitting at the exit of the compressed air hose and place a gauge in the leg of the "T" that is 90 degrees to the axis of flow. Provided that the through bore diameter of the "T" is the same size or larger than the inside diameter of the compressed air line, the gauge will read 0 PSI. If you place a ball valve on the outlet side of the "T" and slowly close the valve you will see the gauge show increased pressure and the amount of air leaving the "T" will decrease. Once the ball valve is fully closed, the gauge will show full pressure and no air will be flowing out of the "T".

When there is a venturi at the end of the compressed air line a very different condition is created than what is noted above because the air is not allowed to exit freely to the atmosphere. The venturi has a limiting orifice which presents a significant restriction like the ball valve in the example above.

When a venturi is connected to the compressor, a specific amount of compressed air will pass through the limiting orifice inside the venturi.  When the input pressure is increased, more compressed air will flow through that orifice because there is more force being applied to each air molecule which results in more air molecules fitting through the orifice.

In summary, when there is a restriction in the system, a higher compressed air pressure will result in more compressed air leaving the compressor. The compressor will not produce more flow at higher pressures however more air will leave the compressor and flow through the venturi.


Product Reviews

  1. So Nice - I Bough It Twice

    Review by T. Richard Harris
    Rating:

    I just bought my second kit from Joe because one just isn't enough in my shop. I find myself doing more veneer work than ever these days and this kit is flawless. I mean truly flawless. The instructions make is so easy and the box is packed with everything to get the kit put together in less than a two hours. As you probably already know - the customer service at this company is second to none.


  2. Extremely Well-Designed System

    Review by Jim Allen
    Rating:

    I love everything about this kit. Assembly was a breeze, and the instructions were detailed, thorough, and full of helpful tips to make things go smoothly. It's a great, compact system I'm sure that I'll enjoy using for years to come.


  3. Assembly Was a Breeze!

    Review by Dusty Mitich-Overby
    Rating:

    This was purchased by my boyfriend's father and we assembled it for him. He bought the non-Premium V4.

    The instructions are very thorough and easy to read. All the parts you need are included, except glue, sandpaper, and tools. They list all the tools/extras you'll need in the beginning of the instruction manual, as well as a note about PVC cement. I also found it helpful that there was a parts list included. It was nice to be able see a picture of which parts they call for in each step. The instructions also split the assembly into sections with estimated assembly time per section. It took me and my guy about 2 leisurely hours to assemble and that accounts for the inevitable interruptions that come with having children.

    I was quite impressed with the quality of the wood provided for the carrier. It was a nice solid birch and we left it unfinished. We only sanded it lightly as per the instructions.

    As for shipping, the box was well packed and not a single thing was damaged. Shipping time seemed fair, about 4 days or so, though I don't know exactly when it was ordered.

    We also didn't pressure test it as we don't have a compressor available to us. If I'm able to update the review, I will as soon as it's been put to use.


  4. Happy Camper

    Review by James Phetteplace
    Rating:

    Just used the V4 vacuum press that I had ordered a few weeks ago with the vacuum bag glue and other products I had ordered also. I am very happy with my purchase.


  5. Exceptional Value for a Well Designed Product

    Review by David Blehar
    Rating:

    I was a bit torn between the V2 and V4, ultimately went with the V4 thinking I was paying a bit for the convenience factor. I could not be happier with my choice. Forget about the convenience of not having to run out for additional supplies from the hardware store, the carrier components are something you would never reproduce at home without a CNC machine. Not to mention its made from nice Baltic birch plywood. It all makes for a nice compact little package that doesn't look like a bunch of scrap parts thrown together. The assembly instructions are exceptionally well done. I was taking my time and still done in under 2 hours.

    As a side note, I got the Plus model which calls for 5.5 CFM at 90 PSI. I was a bit hesitant as my compressor is only rated for 5.3. No problems whatsoever. So if you've got the same California Air Tools compressor and wondering the same thing, you shouldn't have any trouble.


  6. Praise for a Great Vacuum System

    Review by Daniel Sutton
    Rating:

    I just sent Joe an email to thank him for shipping my system so quickly and to congratulate him on an incredible set up. I noticed that the last person to review this kit also got his shipment quickly and was positive about his assembly experience. There isn't much more I can add to those comments. I can only confirm that my press is already vacuuming my first project. You wont go wrong with this system as long as you buy the version that matches your compressor specifications.

    The assembly is very easy. Its written well enough that a fool could put it together perfectly. The parts appear to be high quality and durable so I'm guessing I'll have many years of vacuum projects ahead of me. Can't wait to get some maple burl on my next side table. The vacuum filter is a nice touch too.

    In closing I will say that doing business here is a pleasure and this kit is rock solid.


  7. Spot-On Perfect

    Review by Drew Miller
    Rating:

    I got my kit this afternoon. OK so what right? Well I ordered it yesterday! I finished building it about an hour ago and one of the first things I had to do was write this review. You wont fit better instructions anywhere but here. Everything went together absolutely flawlessly... I'm mean spot-on perfect. My vacuum press has been "charged" with vacuum for the last hour and it is so tight it hasn't even cycled back on once.

    Top notch service. Flawless product. Incredible shipping. Superior quality. This site has it all. I could go on but I want to get something in the vacuum bag. You won't regret buying this system. A+++


  8. Thanks Joe for making these products available!

    Review by Ron Husbands
    Rating:

    This is a great product. I first thought to buy the kit and do it myself, but was a little too busy so I opted for the assembled kit. Good decision cause I know that everything would be tested first, in turn leaving me stress-free. I stained it and amazingly has fast and great vacuum. Extremely satisfying!


  9. Great New Venturi System

    Review by Kelly Scott
    Rating:

    This venturi vacuum system is terrific. I find that it evacuates the bag very quickly and gives a good 25" quickly. I used this on a 4x9 bag and once it does the initial evac, the cycles progress to increasingly longer intervals quite rapidly.

    [Note from Joe: The ideal vacuum level for most veneering jobs in 21".]


  10. So Much Easier

    Review by Karen Vaughn
    Rating:

    I just got my system and I can honestly say that I'm proud to have this in my workshop. The quality and simplicity and overall appeal is evident. Such a great design and so incredibly powerful. I wish I'd had it a couple of years ago because it is so much easier to vacuum press a veneer sheet than to clamp it between two boards. Great job Joe!


  11. Great Press, Excellent Value, Highly Recommended!

    Review by Jeff Kusama-Hinte
    Rating:

    I generally make solid wood furniture but, occasionally, I have the need to apply shop sawn veneers. For years I have used clamps and cauls — which are always cumbersome and rarely deliver perfect results.

    I purchased this press a couple of weeks ago and it has performed flawlessly. The device is well designed, very reasonably priced, has high quality components, and it is a pleasure to use. I am so happy that I chose a venturi pump model as the last thing I need is another motor humming away in the shop (my compressor is in a sound proofed room far from my bench); the only sound it makes it the release of air as it forms a vacuum.

    The customer service has been fantastic — it shipped quickly, for a very reasonable fee, and my questions were answered promptly. I received one of the Pre-Assembled Prototype Kits so I didn’t assemble it myself, but I suspect that it would be a very straightforward process for anybody that was minimally mechanically inclined.


  12. Works Great

    Review by David Giasson
    Rating:

    Vacuum press works great and is easy to use. The delivery was fast and customer service great. I have enjoyed working with Joe and ordering the excellent products he offers.


  13. Very happy with this product

    Review by Alex Parker
    Rating:

    Fantastic tool. Works great, easy to set up and use. The “Basic” level venturi is plenty to operate a 2x4 foot vacuum bag.


  14. Best Tool in My Woodshop

    Review by Dylan Standridge
    Rating:

    I am very new to wood veneer and the process of veneering and buying this unit was the best choice I could have EVER made. This vacuum press kit is so well made and there is nothing to do. Just take it out of the box plug it in and go. This allows me to concentrate on the project and not the equipment!
    This has become my new favorite tool in my woodshop!


  15. Fantastic Kit with Impeccable Customer Service

    Review by Anthony Myers
    Rating:

    I'll start by writing that Joe did ask me to write this review for his website but I don't mind doing it because a) the V4 system is incredible and b) Joe has been exceedingly helpful throughout this learning experiences. I'm actually writing this review while my third project is being pressed.

    I ordered the premium 5 version and had it FedEx shipped to my house. The shipping charges seemed fair to me considering the weight and size of the box. The package arrived three days after I ordered but I know it shipped within 5 hours of putting the order through this website. That is impressive and it just goes to show what kind of business this is. I could not be happier with this kind of service.

    Now on to the V4 review. Since my system is prototype (aka beta) model it was already assembled by Joe before shipping. I suspect the full assembly instructions will be impeccable. If you haven't seen his other vacuum press instructions then you should take a look because they are very well written. The V4 system is fairly compact considering what it does. It weighs less than 20 lbs but the handle grip is comfortable and balanced well on the system carrier. I first tested the unit by keeping the valve closed and letting it charge up vacuum and then cycle off. The system held with no leaks for 14 hours. After that I was just too excited to use it and couldn't wait any longer. My first project was with a 4x4 vinyl vacuum bag and the project was tiger maple veneer on a 3/4" thick piece of cabinet grade plywood. The V4 kit can be pre-charged with vacuum as I mentioned so the initial vacuuming of the bag is quick. The system required compressed air for less than minute to get the bag to 21" hg. My compressor did come on during the time but it ran for no longer than a normal "on" cycle.

    The V4 system is run off of 12VDC which is a departure from the V2 system which was 120VAC. This has no impact on the performance of the vacuum press but I thought it was worth mentioning. Overall the system has a sort of grass roots feel. It kind of looks homemade but definitely better than most people could actually make on their own without knowing the complexities of what is going on with the various parts. The machining of the plastic carrier is outstanding and it appears that the parts of the system all fit perfectly on the carrier. The parts of the setup are good quality. For instance the brass fittings - they look better than hardware store Chinese brass parts. You can tell simply be the surface appearance of the brass. The hose assembly is rugged and the vacuum gauge appears to be stainless steel.

    There is nothing I would suggest for improving this system. If you are thinking about getting into veneering then I highly recommend this system. You won't find better customer support anywhere else!



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