JoeWoodworker
JoeWoodworker Veneer
The Official Website of this Non-Professional Woodworker ™

Part 1
Introduction

Welcome
Veneering Basics

14 Good Reasons
Vacuum Press Uses
Vacuum Press Options
Overview

Questions & Answers
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Part 2a (Option 1 of 2)
Project: V2 Venturi Press

About Project: V2
Parts List
Build the Manifold
Build the Reservoirs
Assemble the Venturi
Make the Carrier
Wire the Press
Testing and Adjusting
Mods and Options
____________________
Part 2b (Option 2 of 2)
Project: EVS Pump Press

About Project: EVS
Parts List
Pump Selection
Build the Manifold
Build the Sub-Manifold
Build the Reservoirs
Make the Carrier
Final Assembly
Wire the Press
Testing and Adjusting
Mods and Options
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Part 3
Vacuum Bagging

Vacuum Bag Basics
Polyurethane vs. Vinyl
DIY Vacuum Bags (A)
DIY Vacuum Bags (B)
Connect the Bag
Bag Closures
Bag Platens
Breather Mesh
Maintenance
DIY Frame Press

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Part 4
Veneer Information

About Veneer
Veneering Glossary
Veneering Myths
Backer Veneer

Veneer Glues
Veneering Tips
Substrate Materials
Flattening Veneers
A Sharp Veneer Saw
Jointing Veneers
Taping Veneers
Dealing with Defects
Curing Glued Panels
Veneering w/o Vacuum
Hammer Veneering
Iron-On Veneering
Veneer Storage
Amazing Bookmatches
Copper Veneer Guide
Paperbacked Veneer

Edgebanding Guide
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Part 5
Miscellaneous Info

Vacuum Forming
Vacuum Chucking
Vacuum Clamping
Vacuum Clamp Matrix
DIY Vacuum Manifold
Vacuum Press Gallery 1
Vacuum Press Gallery 2

Veneering FAQ
Veneer Glue FAQ
The Vac FAQ
Copper Veneer FAQ
Downloads (PDF's)

VeneerSupplies.com

EVS Logo Information
Type: Adjustable Auto-Cycling
Vacuum: Electric Pump
Page: 8 of 11
EVS Thumbnail

Attach the Pump and Pressure Release Assembly To the Carrier
There are two factors to consider before attaching the vacuum pump. First is the location. This should be as close as possible to the upright on the carrier to help balance the weight of the whole system. Second, it should be placed on the carrier bottom in a way that keeps the core parts of the pressure release assembly within the boundaries of the carrier.

Parts used in this section:
Machine screws 1/4-20 by 1.25" (4)
(size may vary)

Time:
15 minutes

Tools:
Drill
5/16 Drill bit
Screwdriver

Nearly all vacuum pumps have mounting holes on the bottom. These holes will be used to attach the pump to the carrier. For the rebuilt 3.15 CFM pumps at VeneerSupplies.com, four mounting screws (1/4"-20 x 1") are needed. The 5 CFM pumps at VeneerSupplies.com use four screws as well (6mm x 1mm x 25mm).

The spacing for the holes should be measured on the underside of the pump. Measure the distance from each mounting hole on the pump. To get the holes to line up easily, cut a piece of 1/4" plywood to same size as the distance between the mounting holes and then lay this piece on the carrier and mark two lines at each corner. The corner of each set of lines is where you'll drill the four mounting holes with a suitably sized drill bit.

Finish up this part by attaching the pump to the carrier with the machine screws. Do not over-tighten the screws. If the screws are too tight or if the carrier holes are drilled off center, the motor housing will flex and the pump may not start.

Carrier Marking

Attach the Vacuum Controller
The vacuum controller regulates the pressure inside the system and turns the vacuum pump on and off as needed. It is adjustable up to 28" of Hg (Hg is the scientific symbol for mercury).

Parts used in this section: Time: Tools:

Vacuum controller
Brass barb elbow fitting – 1/8 NPT-female to 1/4" barb
Screws #4 by 5/8" (2)
Black vinyl tubing (1/4" ID x 12")
Braided vinyl vacuum tube (3/8" ID x 12")
Thread sealing tape
Vacuum damper (if required)

30 minutes

Wrench or pliers
Screwdriver
Drill
5/8" Drill bit
Razor knife


Take a moment to relax and take a deep breath. You've nearly completed the vacuum press and you probably have a very good idea of how it's going to work. Just take a look at the vacuum press and now, say it with me..."Scha-weeeeet!"

  1. The vacuum controller is mounted to the upright on the carrier near the manifold assembly. Keeping in mind that it is connected to the reservoirs with only a 12" length of tubing, find a suitable place on the carrier upright and drill a 5/8" hole through it.
  2. Wrap the threads of the vacuum controller with two passes of thread sealing tape. Attach a 1/4" barb to 1/8" NPT-female brass fitting to the unit. Do not over-tighten the fitting. The maximum torque for the plastic body of the vacuum controller is 4 inch lbs.
  3. Use two #4 by 5/8" screws to attach the vacuum controller to the carrier so the brass fitting is pointing toward the reservoir side of the carrier. Do not over tighten these screws.
  4. Now attach a piece of 1/4" ID vinyl tubing to the barbed end of the brass fitting and connect it to the brass fitting at the top of the manifold on the reservoirs.
  5. Finish up this section by connecting a short piece of the 3/8" ID tubing between the barbed elbow on the sub-reservoir manifold and the barbed elbow fitting on the main manifold.

Vacuum Controller

Vacuum Controller Attached

Black Tubing

Vacuum Press Complete


Got A Larger Pump?

If your vacuum pump pulls more than 4 CFM, you'll want to add a damper to the vacuum controller. This will prevent the vacuum controller from sputtering on and off at the end of a charge cycle by dampening the airflow to the controller. It is attached between the vacuum controller and the brass barbed fitting. Be sure to use a layer or two of thread sealing tape between the two brass fittings.

Vacuum Damper
Vacuum Damper Attached

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