Collection of additional parts
These were the parts that we bought during the construction of the 2p-RAM for the workshop. In the previous partslist this was under 'user supplied parts'. Use your won discretion as to what you might need.
Essential additional items for the Thorlabs kit
There are items that did not make it into the original Thorlabs kit order.
Dowel pins update
Order better dowel pins: MSC (http://www.mscdirect.com/) part # 88231998 Dowel Pins;
(MCMASTER-CARR 90145A567 Dowel Pins are BAD)
Zera issues
Three pieces need fixing.
Gary Zera from Zera Development will be reaching out to all of you regarding modifying two additional parts (three in total).
Alternatively, you can have your shop fix the pieces.
J003114 - Det tube
The surface that needs to be fixed is marked with the Diameter 3.055 dimension (zone C1). The center of this curve has to be located using the dimension 2.820 (it currently is located using the dimension 2.835).
J003119a - Secondary dichroic holder
The surfaces that need to be fixed are marked with the R.094 dimension.
J003103 - Primary dichroic cap
The surface that needs to be fixed is marked with the .434” dimension (zone D3 on the drawing). See picture. The proper datum surfaces A and B need to be used to measure this dimension correctly.
PMT issue
PMT — it looks like some of you ordered
H10770PA-40 SEL - GaAsP without shuttering
instead of
H11706P-40 SEL - GaAsP with shuttering
Left, H11706P-40 SE; right, H10770PA-40.
Obviously the size of the PMTs is different. The PMT holder was designed for H11706P-40 SEL.
H10770PA-40 SEL has a smaller crossection and no mounting holes.
SOLUTION: It should be relatively easy to glue this PMT to the provided PMT holder. Simply replace the WPI Kwik-Cast with some 5 min epoxy. Make light tight with some electrical tape if necessary.