[3dem] Gatan 914 holder - should shutter close further than this?

[Matthews-Palmer, Teige Rowan Seal]

Dear 3DEMers,

While troubleshooting some “leopard print” ice contamination on a Gatan 914 holder, we noticed that the underside of the cryoshield/shutter does not close 'all the way' (you can see the grid).
I wanted to know from other users of 914 holders, does the underside of your shutter look like this when closed, or does it slide further to completely seal away the grid?

An alternative cause of the contamination is a leak through the shutter rod assembly.
Any thoughts welcome!
Thanks,
Teige

[cid:120337D6-AD1E-472E-BC77-E1DAC7262DE7]
[cid:D26681C1-C9D4-4440-8A4E-308155A857E4]
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