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11 Benchmark Test Technical Training E by DEK 12/2017 107 Perform Benchmark Test and record results Apply small amount of paste or suitable lubricant to stencil to lubricate squeegees. Run QC-Calc package on printer. C…
11 Benchmark Test
106 Technical Training E by DEK 12/2017
Set up machine for benchmark test
Load the 265test1 product file and ensure that the following parameters are set correctly:
Note: Calibration stencil, Calibration board and SPC Benchmark board are NOT supplied. They
need to be ordered separately.
Front Print speed 25 mm/s
Rear Print speed 25 mm/s
Front Pressure 5kg
Rear Pressure 5kg
Separation Speed 1 mm/s
Under Clearance 20mm
No paste dispense or Screen Cleaner rate
SPC Configuration:
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Data output rate = Every cycle
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Start Rate = 1
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Sample Rate = 0
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Start Rate Limit = 0
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SPC data mode = Disc
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SPC Format = Windows
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Update On Start = No
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Align Inspect mode = Post
Ensure that the following hardware is set-up correctly:
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9 Tooling support pillars are used
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Squeegees fitted are of the correct length to suit board and heights calibrated
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DEK alignment test board (Part Number 137071) is used
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Screen loaded is the calibration/dry align screen
Adjust machine parameters for benchmark test
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Transport Mode Left to Left (or Right to Right)
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Upline Protocol No FMI
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Downline Protocol No FMI
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Screen size 265
11 Benchmark Test
Technical Training E by DEK 12/2017 107
Perform Benchmark Test and record results
Apply small amount of paste or suitable lubricant to stencil to lubricate squeegees.
Run QC-Calc package on printer.
Carry out a minimum of 100 full machine cycles.
On completion of the test record the following information:
Front Print Speed Cp/Cpk = ………………………………………………………….
Rear Print Speed Cp/Cpk = ………………………………………………………….
Separation Speed Cp/Cpk = ………………………………………………………….
X alignment Cp/Cpk = ………………………………………………………….
Y alignment Cp/Cpk = ………………………………………………………….
Theta alignment Cp/Cpk = ………………………………………………………….
Front Pressure Cp/Cpk = ………………………………………………………….
Rear Pressure Cp/Cpk = ………………………………………………………….
NOTICE
Error message
The error message "No variation in selected data – Increase significant digits" may appear
for pressure and speeds due to the lack of variation. In this instance, no values are re-
quired.
Exercise
Identify the arrowed items below:
11 Benchmark Test
108 Technical Training E by DEK 12/2017
Our Goal
Exercise
Identify common causes of poor performance
With the instructor, discuss the typical causes and solutions to any poor results.
Summery of Adjustment
Board move- Rail parallelism Reduce board width 1mm
Fiducial capture Try video model mode
Board move – belts Remove tooling
Print carriage bearings Run dry align
Screen move –Chase clamps Disconnect chase clamps –no pressure
Calibrations Calibrate
Screen move - Stretch Try new screen