Vacuum Cups And Fittings - OnRobot VG10 User Manual

VG10 User Manual 1.1.0

Vacuum cups and fittings

It is possible to change suction cups simply by pulling them off the fittings. Unused
holes can be blinded using a blind screw, and each fitting can be changed to a different
type to match the desired suction cup. Use a 3 mm Allen key for changing to blind
screws or another type of fitting (See figure 3.3 below).
Figure 3.3: G1/8 thread behind the existing fitting.
Changing to another fitting or blind is possible.
The thread size is the commonly used G1/8"; allowing for standard fittings, blinders
and extenders to be fitted directly to the VG10 arms and housing, see mechanical
details in the Mechanical Dimensions Section.
Choosing the right vacuum cups for your application is essential. The VG10 comes with
common 30 mm silicone vacuum cups which are good for hard and flat surfaces, but
not good for uneven surfaces and it might leave microscopic traces of silicone on the
workpiece which can cause issues with some types of painting processes afterwards.
Below is a list with general recommendations.
Workpiece surface
Hard and flat
Soft plastic or plastic bag
Hard but curved or uneven
To be painted afterwards
Varying heights
Table: Choosing a vacuum cup type
INFO
It is recommended to consult a vacuum cup specialist to find the
optimal vacuum cup where the standard types are insufficient.
Page 22 of 40
Vacuum cup shape
Normal or dual lip
Special plastic bag type
Thin dual lip
Any type
1.5 or more bevels
Vacuum cup material
Silicone or NBR
Special plastic bag type
Silicone or soft NBR
NBR only
Any type