1. Optical Fibre Winder meeting #2 – Design introduction
Dawid Patrzalek

2. First machine concept First machine concept was assuming machine:
Fully programmable (reeling speed, changeable pitch, etc.)
Motor powered

3. First concept machine cost estimation
Cost estimation of the mentioned machine:
CERN – 78.5 kCHF
Mechanics (materials and manufacturing) – 7.5 kCHF
Control system (estimation provided by J. Lendaro):
Material cost – 8 kCHF
Production cost – 3 kCHF
Control system development – 60 kCHF (at least 6 months of work for fellow)
Mobac (German company) – 20 kCHF
Showmark (USA company) – at least 20 kCHF + tax
Final conclusion – we can not afford it!

4. New machine concept
New concept assumes fully human powered machine:

5. New machine concept

6. New machine concept vs old one
Despite significant change compare to the first conception, we still provide:
Possibility to install variable spools
Adjustable reeling pitch and width
Accuracy +/- few mm
Cutting machine integrated
Fast and easy to use
Upgradable
Integrated display
Possibility to reel certain length of the fibre
2 programs:
Reeling program
Measurement program
Adjustable reeling speed
Length measurement
Anti-slipping detector
Preload system
New concept machine disadvantages:
Not changeable pitch (it will be changing automatically)
Sinusoidal speed of a pitch mechanism
Every change of a spool size extort change of a crankshaft (to be explained)

7. Pitch calculations
To be introduced with help of Excel file

8. Further steps to do Safety covers to be design and integrated
Fasteners to be integrated
Ceramic spools to be replaced by aluminum ones (???)
2D drawings to be done

9. CE marking Motor powered machine require CE marking
Human powered machine do not require CE marking (only basic safety regulations have to be taken into account)
Information provided by HSE

10. Schedule
To be introduced with help of PDF file

11. Optical Fibre Winder meeting #1 - Preliminary design proposal
Dawid Patrzalek

12. Design requirements Mechanical requirements
Possibility to install variable spools
Adjustable reeling pitch and width
Accuracy +/- few mm
Cutting machine integrated
Fast and easy to use
Upgradable
Control system requirements
Integrated display
Possibility to reel certain length of the fibre
2 programs:
Reeling program
Measurement program
Adjustable reeling speed
Length measurement method to be chosen
Anti-slipping detecting method to be chosen
Preload system??? (electro-magnetic brake)

13. Preliminary design – general description
Source spool
Target spool
Cutting machine
Drive system
Rotation counting

14. Preliminary design – driving system
Pitch motor
Main drive motor

15. Preliminary design – variable spools installation
Preload wheels
Cone shape nuts

16. CE marking Is it mandatory in our case?
An example of CE marked machine:

17. Further steps to be done
CE marking decision has to be taken
Cost evaluation
Schedule evaluation
Control system proposal
Final design proposal