Thank you Mike. I’ll stand by until then.
For a vacuum chamber, I don’t think I should try to laminate thinner pieces
together. High vacuum has a tendency to pull stuff apart.
The chamber will be approximately 42” long and 5.5” ID square. The clear
plastic is for the ends. For the thickness of the clear plastic I would like
the best optical quality possible. I’ll be viewing through the ends of the
chamber using a video camera. (I’m not going to be sticking my nose up against
the end of a 3 ½’ long chamber with high vac inside.) The other walls of the
chamber are ¼” thick aluminum.
I found 1 ¼” thick bullet resistant (sometimes referred to as just BR plastic)
at the local recycle yard, but I would have to purchase an old bank door that
weighs about 500 lbs.
I appreciate all the help with this. I’m working on fixing up the mechanical
pump now and will post some photos when I have some substantial progress.
First, I want to assure that the pump is working well.
Richard
From: kramer@xxxxxxxxxxxx<mailto:kramer@xxxxxxxxxxxx>
Sent: Monday, May 23, 2016 3:17 PM
To: jhoward@xxxxxxxxxxxx<mailto:jhoward@xxxxxxxxxxxx>
Cc: roc-chat@xxxxxxxxxxxxx<mailto:roc-chat@xxxxxxxxxxxxx>
Subject: [roc-chat] Re: roc-chat Digest V6 #100
c&h is 5 minutes from my work, I can check them out on Thursday.
mike k
-------- Original Message --------
Subject: [roc-chat] Re: roc-chat Digest V6 #100
From: John Howard <jhoward@xxxxxxxxxxxx>
Date: May 23, 2016 2:42 PM
To: roc-chat@xxxxxxxxxxxxx
CC:
Sounds like you need to make a road trip to
C&H surplus
Apex Electronics
Norton Sales
John
Sent from my iPhone
On May 23, 2016, at 2:25 PM, FreeLists Mailing List Manager
<ecartis@xxxxxxxxxxxxx> wrote:
roc-chat Digest Mon, 23 May 2016 Volume: 06 Issue: 100
In This Issue:
[roc-chat] Thick clear polycarb for vacuum chamber
----------------------------------------------------------------------
From: R Dierking <applerocketry@xxxxxxxxxxx>
Subject: [roc-chat] Thick clear polycarb for vacuum chamber
Date: Mon, 23 May 2016 14:25:36 -0700
I’m looking for two sheets of ¾” to 1” thick clear plastic for the ends of a
vacuum chamber. I need them to be at least 8” square.
Any suggestions on suppliers? New material from places like McMaster or
Industrial Plastics Supply are very expensive and my usual recycle place
doesn’t have anything like this currently.
Thank you,
Richard Dierking
------------------------------
End of roc-chat Digest V6 #100
******************************
--
ROC-Chat mailing list
roc-chat@xxxxxxxxxxxxx
//www.freelists.org/list/roc-chat
