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Introduction
Doug Ferguson at Phantasmechanics
invented the FCG (Flying Crank Ghost). Doug's web site includes illustrated
instructions on how to build a FCG and Doug also sells FCG kits.
I wouldn't dare try to improve on
Doug's instructions, however, I found that Doug's instructions were lacking in
two ways. First, Doug's instructions didn't include a consolidated parts list.
Second, Doug wasn't specific in terms of where holes should be drilled.
Parts
List
Table 1 includes a complete parts list for an official Phantasmechanics' FCG motor platform.
Table 1. Flying Crank Ghost Motor Platform Parts List
|
Quantity |
Description |
Package |
Multiple |
Unit |
|
1 |
6' Replacement Power Cord |
$3.99 |
x 1 |
$3.99 |
|
1 |
3/16" Wire Rope Clip (U-Bolt) |
$1.39 |
/ 2 |
$0.70 |
|
2 |
4’ x 1" x 1/8" Aluminum Angle |
$15.98 |
x 1 |
$15.98 |
|
1 |
1’ x 1" x 1/8" Aluminum Flat |
$3.99 |
/ 4 |
$1.00 |
|
19 |
¼-20 Hex Nuts Course |
$0.98 |
x 19 / 24 |
$0.78 |
|
10 |
¼" SAE Washers |
$0.49 |
/ 2 |
$0.25 |
|
4 |
10/32 x ½" Machine Screws |
$0.49 |
x 4 / 8 |
$0.25 |
|
5 |
¼" x 1½" Bolts |
$0.60 |
x 1 |
$0.60 |
|
2 |
¼" x 1-1/4" Fender Washers |
$0.59 |
x 2 / 6 |
$0.20 |
|
14 |
¼" Split Lock-Washers |
$0.98 |
x 14 / 20 |
$0.69 |
|
2 |
¼" x 2" Eye Bolt |
$0.78 |
x 1 |
$0.78 |
|
2 |
¼" x 2 ½" Eye Bolt |
$0.78 |
x 1 |
$0.78 |
|
1 |
½" x 4" Eye Bolt |
$0.49 |
x 1 |
$0.49 |
|
3 |
3/4" Swivel Pulley |
$5.97 |
x 1 |
$5.97 |
|
6 |
8" Cable Ties |
$1.79 |
x 6 / 15 |
$0.72 |
|
1 |
8 - 10 Spade Terminal |
$0.89 |
x 1 / 7 |
$0.13 |
|
2 |
Twist-On Wire Connectors |
$0.99 |
x 2 / 14 |
$0.14 |
|
|
|
$41.17 |
|
$33.45 |
The Dayton 2Z806 gear motor is available at Grainger. Grainger is "… the
leading North American
business-to-business distributor of maintenance, repair, and operating (MRO)
supplies, services and related information." As a "business-to-business distributor",
Grainger is a wholesaler. You will need to purchase the gear motor from a local
outlet in the name of your workplace and pay cash.
You can also purchase the Dayton
2Z806 gear motor from the Electric
Motor Warehouse (1-877-98MOTOR). The Electric Motor Warehouse offers
competitive prices.
Assembling
Nuts, Washers and Bolts
I will describe how the nuts,
washers and bolts are assembled using abbreviations. The abbreviations are
described in table 2.
Table
2. Abbreviation Chart
|
E |
Bolt Eye |
|
FW |
Fender Washer |
|
H |
Bolt Head |
|
LW |
Split Lock-washer |
|
N |
Hex Nut |
|
W |
SAE Washer |
For example,
H
W4 N7 LW4 N8
describes an assembly consisting of
a SAE washer, hex nut, split lock-washer and hex nut where the SAE washer is
positioned next to the head of the bolt. The subscript indicates the unit-count
out of the total number of units. For example,
LW4
refers to the fourth of 14 ¼"
split lock-washers.
N7
refers to the seventh of 19 course
¼-20 Hex Nuts.
Bolts
for Frame Members (4)
[H
W1 N1 LW1 N2], [H W2 N3
LW2 N4], [H W3 N5 LW3 N6],
[H W4 N7 LW4 N8]
Long
Eye Bolt
E
N9 LW5 N10 N11 FW1 LW6
N12
Pulley
Eye Bolts (2 x 2")
[E
N13 LW7 N14], [E N15 LW8
N16]
Arm
Pivot Eye Bolts (2 x 2 1/2")
[E
N17 W5 LW9 W6 N18], [E N19
W7 LW10 W8 N20]
Crank
Pivot Assembly
H
W9 FW2 W10 N21 LW11 N22
N23 LW12 N24
Crank
Arm U-Bolt
N25
LW13 LW14 N26
The following picture illustrates all of the assembled hardware,
Cutting
Aluminum
The 4' length of 1" x 1/8" angle aluminum is cut into,
|
1 |
20" |
Right Motor Mount |
|
2 |
13 3/4" |
Right and Left Arm |
The 4' length of 1" x 1/8" angle aluminum is cut into,
|
1 |
20" |
Left Motor Mount |
|
1 |
16" |
Front Bar |
|
1 |
11 3/4" |
Rear Bar |
The 12" length of 1" x 1/8" flat aluminum serves as the crank.
Drilling
Holes
All of the holes are drilled on 1/2" centers unless otherwise noted (e.g. Right and Left Motor Mount).
The Right and Left Motor Mounts involve "mirrored" lengths of angle aluminum. With both lengths oriented the same, the holes which are measured "From Left" on one length are measured "From Right" on the other length, hence "From Left/Right". And vice versa, the holes which are measured "From Right" on one length are measured "From Left" on the other length, hence "From Right/Left". The same applies to the "Right and Left Arm".
Right
and Left Motor Mount
3/8" (From Left/Right)
3 5/16" (From Left/Right) x 3/8" (From Angle)
5 5/8" (From Left/Right) x 3/8" (From Angle)
3/8" (From Right/Left)
Front
Bar
+/- 1 1/8" (From 8" Center)
Right
and Left Arm
2 3/4" (From Left/Right)
3/8" (From Right/Left)
Rear
Bar
5 7/8" (Center)
+/- 1 1/8" (From Center)
Crank
Arm
3/4" (From Left)
1 3/4" (From Left)
2 3/4" (From Left)
3 3/4" (From Left)
4 3/4" (From Left)
1/2" (From Right)
1 1/16" (From Right)
Bending
Aluminum
The crank arm must be bent at a 90° angle. The bend extends 1 1/4"
to 2 3/4" (is centered 2") from the right end
of the crank arm.