The images below show the assembled 2nd Stage. The number of stages you plan on assembling will affect the final appearance of your 1st Stage.

Step 1

Before assembling the 1st Stage Horizontal Tubes, drill the threaded holes on the Aluminum Tube Plugs that are marked in green. Both sides must be drilled. Then, assemble both 1st Stage Horizontal Tubes as shown in the image below.

Step 2

Bolt the 1st Stage Vertical Tubes to the assembled 1st Stage Horizontal Tubes. The top holes in the vertical tube must be drilled clearance for #10-32 bolts with the outside face drilled to 3/8", similar to how the Elevator Base Tube is done. When assembled, the heads of the #10-32 x 3/8"L bolts will sit inside the 1st Stage Vertical Tube.

Step 3

Mount both Chain Attachment Brackets to the bottom 1st Stage Horizontal Tube in the orientation shown below. The brackets will be installed using six #10-32 x 2-1/2"L bolts and #10-32 nuts.

Step 1

Assemble the Elevator Mast Vertical Tube with an aluminum tube plug and appropriate plastic tube plug sleeve. The tube plug can be installed using #10-32 x 3/8”L bolts.

Repeat this step for both Elevator Mast Vertical Tubes.

Step 2

Bolt the assembled vertical tubes for the mast to the Elevator Base Tube. The bottom face of the tube should be drilled to 3/8”, providing adequate clearance so the #10-32 x 3/8”L bolts can be installed inside the tube.

Step 3

Install the Clamping Bearing Blocks as shown in the image below. The Bearing Blocks use 1/2” hole spacing.

Repeat this step for both sides of the Elevator Mast.

Step 4

Attach the Elevator Mast Cross Tube to the Elevator Mast Vertical Tubes using four #10-32 bolts and 2” long spacers. While the tube can be lower, it is recommended to mount it as high as possible to increase the strength of the elevator mast.

Step 5

Drill the holes marked in green on one of the Centered Bearing Plates to be clearance for #10-32. Once that is done, press the 1/2" Rounded Hex Bearings into both plates. Install both plates as shown in the image below using two #10-32 x 1-1/2"L bolts.

Step 1

Slide the carriage assembly into the 1st stage assembly from the front. It may help with installation to lift the carriage up from the bottom and angle it forward a bit. Slide the carriage down and return it to a vertical position.

Once in, the front/back bearings in the carriage and the 1st stage should both be on the same side.

Step 2

Bolt the 3/4" OD Radial Bearings into the Bearing Blocks on the backside of the carriage as indicated in green.

At this point, the elevator carriage should be able to move smoothly up/down, and a small amount of wiggle left/right and front/back is to be expected. This ensures the elevator will not bind.

Step 3

Slide the assembly from Step 2 into the Elevator Mast Assembly from the front. It may help with installation to lift the assembly up from the bottom and angle it forward a bit. Slide that assembly down while returning it to a vertical position.

Step 4

Bolt the 3/4" OD Radial Bearings into the Bearing Blocks on the backside of the carriage as indicated in green.

At this point, the 1st stage should be able to move smoothly up/down, and a small amount of wiggle left/right and front/back is to be expected. This ensures the elevator will not bind.

Step 1

Assemble the Carriage Horizontal Tube with aluminum tube plugs and appropriate plastic tube plug sleeves. The tube plugs can be installed using #10-32 x 3/8"L bolts.

Repeat this step for both Carriage Horizontal Tubes.

Step 2

Bolt the Carriage Vertical Tubes to the assembled Carriage Horizontal Tubes using the #10-32 x 1 1/2"L bolts When assembled, the #10-32 x 1 1/2"L bolts will sit inside the Elevator Clamping Block.

Step 3

The bushings should be a slip or a light press fit into the vertical carriage tube. Install the bearings into the plates before installing the plates onto the carriage.

Use four #10-32 x 3"L bolts to attach the 1/2" Hex Ratchet Plates onto the carriage assembly.

Step 1

Before assembling the Extra Stage Horizontal Tube, drill the threaded holes on the Aluminum Tube Plugs marked in green. Both sides must be drilled. Then, assemble the Extra Stage Horizontal Tube as shown in the image below.

Step 2

Assemble the Extra Stage Cross Tube as shown in the image below. Make sure not to crush the tube when tightening the #10-32 x 1-1/4"L bolts.

Step 3

Bolt the Extra Stage Vertical Tubes to the assembled Extra Stage Horizontal Tube. When assembled, the heads of the #10-32 x 1-1/2"L bolts will sit inside the Elevator Block.

Step 4

Attach the assembled Extra Stage Cross Tube to the Extra Stage using four #10-32 x 5"L Bolts and 2-1/2"L Spacers. While it can be lower, it is recommended to mount it as high as possible to increase the strength of the Extra Stage.

Step 5

Mount both Chain Attachment Brackets to the bottom Extra Stage Horizontal Tube in the orientation shown below. The brackets will be installed using six #10-32 x 2-1/2"L bolts and #10-32 nuts.

Key Assembly Instructions

The following pages cover the basic assembly instructions for the GreyT Elevator.

For the purpose of this manual, all tubes were cut to dimensions used in the CAD model. However, the tubes can be cut to any length desired. See the Material Cutting section for more information.

All holes used in this guide must be drilled clearance for #10-32 before assembly.

2 Stage

3+ Stages

This is the last section required for the GreyT Elevator assembly.

Step 1

Lift all the stages out of the way for this step. Once you have access to the Bottom Tube of the Elevator Mast Assembly, bolt the Gearbox Angle Bracket to the bottom of the tube using #10-32 x 3/8"L bolts. The top face of the tube should be drilled to 3/8” so the #10-32 x 3/8”L bolts can be installed easily inside the tube.

Step 2

Drill the holes on the Centered Bearing Plates to be clearance for #10-32. Once that is done, press the 1/2" Rounded Hex Bearing into the plate. Install the Single Stage Gearbox and Centered Bearing Plate as shown below.

Step 3

Slide the 22T Sprockets, 1/2" Hex Acetal Spacers, and Clamping Shaft Collars onto the shafts.

Step 4

The chain tensioner can go in one of the two spots indicated in the image below in green circles.

Step 5

After the tensioner has been added, bolt through the #25H Chain and Chain Attachment Brackets using #4-40 bolts and nuts. Two additional 1/8" roll pins may be added as well. This will help reduce the load on the #4-40 bolts.

Step 6

Install the 3-1/2" L Tapped Standoff in the way shown in the image below. Do this step for both sides of the carriage.

Step 7

Follow the image below for running the rope.

The beginning of the rope can be looped around the shaft on the carriage, but the other end must be ran through the drilled hole. This ensures that only one end is being tensioned.

Step 7B

A few wraps of string are recommended before the string begins to get tight. Tension string to desired level.

Step 8

Center the Rope Clamp Plates on the 1st Stage rope. Match drill the holes through the plates and the Elevator Mast Cross Tube. The Rope Clamp Plates should go over the rope run that is closest to the tube.