Objet Geometries Ltd Eden330\333 User Manual
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1.3 Procedure for Single Head Replacement
1.3.1 General
1. The objective of this procedure is to guide users through the Single Head
Replacement procedure.
2. Follow the safety instructions before performing the Single Head
Replacement
1.3.2
Why and when to replace a single head?
1. Single Head Replacement should be carried out in any one of the
following cases:
1.1 A large number of nozzles or all nozzles on a single head are not
functioning or “missing”. Only heads missing more than 15 nozzles
should be considered for replacement
1.2 Printing head is damaged (orifice plate is peeling or has bubbles). *
1.3 Printing head is jetting a very low weight. **
2. The following are general guidelines as to when to avoid head
replacement.
2.1 Do not remove single heads if the printing block is full of resin. The
printing block must be empty before head replacement.
2.2 Do not remove or attempt to replace heads during printing, as head
replacement requires performance of ‘Weight Test’.
* Note: Head replacement in this case should be done only if the damaged orifice plate
affects missing nozzles or printing quality.
** For optimizing a single head’s weight, or adjusting other heads to same level as the
defective head, please refer to
‘Optimizing Heads’
procedure.
17.1
Required Tools
1. Gloves (pair).
2. Flat-end screwdriver (5mm).
3.
FlipScale
or other weight measurement tool
(with minimum accuracy of 0.05 gr).
4. Wiping cloth and Propanol spray.
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