ACADEMY LCFF 1.2 Manuale di istruzioni
LCFF Setup & Calibraon
Workshop Manual
LCFF 1.2
Contents
1 — Introducon
1 — Important Calibraon Note
2 — Crate Contents
SETUP
3 — LCFF 1.2 General Assembly
4 — Measurement System
5 — Carriage Datums & Clamping
6 — Head Tube & Rear Axle X Seng
7 — Angle Measurement Using Digital Angle Gauge
8 — Head Tube Y Seng
9 — Rear Axle Height Seng - BB DROP
10 — Rear Axle Height Seng - BB RISE
CALIBRATION
11 — Laser Pointer Calibraon
12 — Degrees of Freedom
13 — Correct Grub Screw Adjutment
14 — Calibraon Step 1 - Seat Tube Centre Line
15 — Calibraon Step 2 - Head Tube Centre Line & Roll
16 — Calibraon Step 3 - Rear Axle Centre Line & Roll
17 — Calibraon Step 4 - Rear Axle Yaw
BUILD
18 — Head Tube Pucks & Adaptors
19 — Boom Bracket Adapters & Dummy Axle Setup
LCFF 1.2 Setup & Calibraon
workshop manual v2
Page 1
© The Bicycle Academy Limited 2019
Introducon
The Academy Tools Low Cost Frame Fixture (LCFF) provides aordability, accuracy
and ease of use thanks to clever design.
Our proprietary User Calibratable Fixture Alignment System gives you the funconality
you need to check and control the alignment of your frame xture, independently at
every interface, every me.
This has opened up some really excing possibilies such as reduced
manufacturing and producon cost, at-pack design, reduced shipping footprint
and cost, user assembly & calibraon and a huge and expandable build range.
As a result the LCFF is the only fully funconal low cost frame building xture in
existence.
Laser Hazard
USE APROPRIATE EYE PROTECTION.
DO NOT LOOK INTO THE DIRECT OR REFLECTED BEAM.
NEVER POINT ANY LASER TOWARDS AIRCRAFT OR
VEHICLES; IT IS UNSAFE AND ILLEGAL.
THIS IS NOT A TOY.
Technical Documentaon
1. Setup & Calibraon Workshop Manual (included with your xture)
2. Assembly Instrucons (download)
PDF versions of both documents can be downloaded here:
hps://thebicycleacademy.org/pages/lc-owners-manual
Hollow Secon Beams
The LCFF is designed to use globally available mild steel hollow secon beams, of a
range of sizes, manufactured to BS EN 10219 or ASTM A500.
These beams are commonly referred to as Rectangular Hollow Secon (RHS) and
Square Hollow Secon (SHS).
Square - 38.1 mm (1.5”) to 40 mm
Rectangular - 100 mm to 101.6 (4”) x 50.8 (2”) to 60 mm
Wall Thickness - 3 mm (0.125”) (reccomended)
See the assembly manual for full details, including secon dimensions and lengths.
Mild steel hollow secon beams are inherently not straight. Each length of beam
will have a degree of bend and twist, within dened limits, this is a natural variaon
resulng from the beam manufacturing process. The Fixture Alignment System has
been designed to accommodate these variaons for the typical range of bicycle
frame sizes.
Setup & calibraon process summary
1. Set up the xture to the desired bike geometry (p 3-9)
2. Take care to correctly ghten the carriages (p 5)
3. Calibrate the laser pointer in the laser holder (p 11)
4. Calibrate the Seat Tube, Head Tube and Rear Axle features (p 12-17)
5. Install the correct bb spacer, head tube adaptor and dummy axle (p 18-19)
Important Calibraon Note
Due to the variaons in the beams it is necessary to calibrate the xture for
each frame geometry setup and every me a carriage is reposioned.
Calibraon of the laser pointer in the laser holder is an essenal rst step
before calibrang the xture.
LCFF 1.2 - Crate Contents
LCFF 1.2 Setup & Calibraon
workshop manual v1
Page 2
© The Bicycle Academy Limited 2019
Fasteners & Fixings packs
Laser cut part
packs
Pack A
Fasteners & Fixings
Main Beam Assembly
Pack B
Fasteners & Fixings
Front Axle Carriage Assembly
Pack C
Fasteners & Fixings
Pack D
Fasteners & Fixings
Rear Axle Carriage Assembly
Pack E
Fasteners & Fixings
Head tube carriage Assembly
Pack F
Fasteners & Fixings
Seat tube carriage Assembly
Pack G
Fasteners & Fixings
Pack H
Fasteners & Fixings
Levers
Laser Pointer
Digital Angle Finder
Pack A
Laser cut parts
Main Beam Assembly
Pack B
Laser cut parts
Front Axle Carriage Assembly
Pack C
Laser cut parts
Pack D
Laser cut parts
Rear Axle Carriage Assembly
Pack E
Laser cut parts
Head tube carriage Assembly
Pack F
Laser cut parts
Seat tube carriage Assembly
Pack G
Laser cut parts
Workshop Manual
BB laser holder
Find fasteners inside
Turned parts
skewer
1m steel rule
222
223
106
111
110
104
103
101
102
100
113
225
107
402
401
66
114
Loose Items
LCFF 1.2 - General Assembly
LCFF 1.2 Setup & Calibraon
workshop manual v1
Page 3
© The Bicycle Academy Limited 2019
LCFF 1.2 Setup & Calibraon
workshop manual v1
Page 3
© The Bicycle Academy Limited 2019
E
F
D
G
C
B
A
402400 66
H
Chain Stay length
Horizontal
LCFF
Head Tube X
LCFF Head Tube Y
Seat angle
Head angle
Bottom Bracket
Drop/Rise
1730
400
LCFF No.
Description
QTY.
Pack
A
Main Beam Assembly
1
A
B
Front Axle Carriage Assembly
1
B
C
1
C
D
Rear Axle Carriage Assembly
1
D
E
Head Tube Carriage Assembly
1
E
F
Seat Tube Carriage Assembly
1
F
G
1
G
H
3
H
66
1
400
Steel ruler 25 mm wide
1
402
4
LCFF 1.2 Setup & Calibraon
workshop manual v2
Page 4
© The Bicycle Academy Limited 2019
Measurement System
Chain Stay length
Horizontal
BB axis to
Steering axis intersect
LCFF Head Tube X
Horizontal
(Henry James X in BikeCAD)
LCFF Head tube bottom
from BB horizontal plane
along steering axis
(Henry James Y in BikeCAD)
Seat angle
Head angle
Bottom Bracket
Drop/Rise
LCFF 1.2 Setup & Calibraon
workshop manual v2
Page 5
© The Bicycle Academy Limited 2019
Carriage Datums & Clamping
Carriage Datums Clamping Order
When securing the carriages, the order and torque applied to the lever or bolt can have a
signicant impact on whether the carriage correctly references the datum faces of the
beam.
For each carriage, the rst clamping lever (or bolt) should be ghtened just enough so
that the carriage is pulled up against the corresponding datum face.
The second lever should then be ghtened so that the carriage pulls up against the second
datum face and also locks the carriage in place.
If the rst lever (or bolt) is overghtened, the carriage up will not be able to move to
reference the second datum face.
Each carriage references two datum faces as highlighted in green.
When reposioning and securing the carriages it is important to ensure
that they are referencing the datum faces correctly.
1
2
1
2
1
Socket head bolt
under carriage
2
1
2
1
2
1
2
1
2
1
2
1
Socket head bolt
under carriage
2
1
2
1
2
1
2
LCFF 1.2 Setup & Calibraon
workshop manual v2
Page 6
© The Bicycle Academy Limited 2019
Head Tube & Rear Axle X Seng
Front axle X reading Bottom bracket ruler datum
Shown without cover plate for clarity
Chainstay length horizontal reading
LCFF 1.2 Setup & Calibraon
workshop manual v2
Page 7
© The Bicycle Academy Limited 2019
Angle Measurement Using Digital Angle Gauge
Head tube Seat tube
Head tube beam
Alternative position for angle finder
when fixture is mounted in LCFF stand
Seat tube beam
Posion the angle nder as shown, so that it references the
main beam and BB carriage datum faces highlighted in green.
Ensure there is no debris on the beam and on the magnec
v-base of the angle nder.
Zero the readout.
Transfer the angle nder to the head tube or seat tube beam as required.
Do not ip the device 180 degrees (note the readout window is facing the same way as when
it was set to zero)
Ensure the front face of the angle nder is sll parallel to the main beam side datum to take
the reading.
To ensure the accuracy of the setup (and head tube roll calibraon) load a head tube and
seat tube into the xture and check the angles again by posioning the angle nder on these
tubes accordingly.
1.
2.
3.
4.
5.
6.
7.
Indice
