I just looked and sheet teflon is going for about $35 per square foot for the 1/8" thick stuff. Just a point of information. I am still looking for an offer. You may be surprised at what I will take. The stuff has been in my basement a LONG time.
Has it curled or is it still flat? On Monday, January 19, 2015, Brent Watson via Utah-Astronomy < utah-astronomy@mailman.xmission.com> wrote:
I just looked and sheet teflon is going for about $35 per square foot for the 1/8" thick stuff. Just a point of information. I am still looking for an offer. You may be surprised at what I will take. The stuff has been in my basement a LONG time. _______________________________________________ Utah-Astronomy mailing list http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy
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It is not flat. There is a curve to both pieces. I'd guess a radius of curvature of about 24 inches on the thick piece. The 1/8 thickness is curved in different ways, but there is still a bunch of flat area. On Monday, January 19, 2015 3:22 PM, Chuck Hards <chuck.hards@gmail.com> wrote: Has it curled or is it still flat? On Monday, January 19, 2015, Brent Watson via Utah-Astronomy <utah-astronomy@mailman.xmission.com> wrote: I just looked and sheet teflon is going for about $35 per square foot for the 1/8" thick stuff. Just a point of information. I am still looking for an offer. You may be surprised at what I will take. The stuff has been in my basement a LONG time. _______________________________________________ Utah-Astronomy mailing list http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Send messages to the list to Utah-Astronomy@mailman.xmission.com The Utah-Astronomy mailing list is not affiliated with any astronomy club. To unsubscribe go to: http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Then enter your email address in the space provided and click on "Unsubscribe or edit options".
The only reason anybody ever uses 1/8" Teflon is because it's cheaper than 1/4". I prefer 1/4" because you can make the countersink deeper for the attaching screw and not worry about ever wearing down to it. Also 1/4" doesn't pucker up as much, if at all, when you tighten-down the attaching screws. Solid. I'll have to pass, Brent, but thanks for making it available. I bought a 4'x4' sheet of 1/4" about 25 years ago, and checking find that I still have about a 1'x4' piece of it. Enough to last me the rest of my life, and then some. Plus a bunch of already cut pieces! On Mon, Jan 19, 2015 at 3:15 PM, Brent Watson via Utah-Astronomy < utah-astronomy@mailman.xmission.com> wrote:
I just looked and sheet teflon is going for about $35 per square foot for the 1/8" thick stuff. Just a point of information. I am still looking for an offer. You may be surprised at what I will take. The stuff has been in my basement a LONG time.
Reads like I need a piece of 1/4" for sure, but apparently not much. If you can find other takers for the 1/4", I'd like to get a piece of it. ----- Original Message ----- From: "Chuck Hards" <chuck.hards@gmail.com> To: "Brent Watson" <brentjwatson@yahoo.com>, "Utah Astronomy" <utah-astronomy@mailman.xmission.com> Sent: Monday, January 19, 2015 6:16:06 PM Subject: Re: [Utah-astronomy] Teflon The only reason anybody ever uses 1/8" Teflon is because it's cheaper than 1/4". I prefer 1/4" because you can make the countersink deeper for the attaching screw and not worry about ever wearing down to it. Also 1/4" doesn't pucker up as much, if at all, when you tighten-down the attaching screws. Solid. I'll have to pass, Brent, but thanks for making it available. I bought a 4'x4' sheet of 1/4" about 25 years ago, and checking find that I still have about a 1'x4' piece of it. Enough to last me the rest of my life, and then some. Plus a bunch of already cut pieces! On Mon, Jan 19, 2015 at 3:15 PM, Brent Watson via Utah-Astronomy < utah-astronomy@mailman.xmission.com> wrote:
I just looked and sheet teflon is going for about $35 per square foot for the 1/8" thick stuff. Just a point of information. I am still looking for an offer. You may be surprised at what I will take. The stuff has been in my basement a LONG time.
_______________________________________________ Utah-Astronomy mailing list http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Send messages to the list to Utah-Astronomy@mailman.xmission.com The Utah-Astronomy mailing list is not affiliated with any astronomy club. To unsubscribe go to: http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Then enter your email address in the space provided and click on "Unsubscribe or edit options".
If you are replacing Teflon on an existing telescope, use the same thickness that was used originally. If building from scratch, 1/4" is preferred for the reasons I listed, but 1/8" will work if care is used in fastening it. On Mon, Jan 19, 2015 at 8:44 PM, Joan Carman <jcarman6@q.com> wrote:
Reads like I need a piece of 1/4" for sure, but apparently not much. If you can find other takers for the 1/4", I'd like to get a piece of it.
----- Original Message ----- From: "Chuck Hards" <chuck.hards@gmail.com> To: "Brent Watson" <brentjwatson@yahoo.com>, "Utah Astronomy" < utah-astronomy@mailman.xmission.com> Sent: Monday, January 19, 2015 6:16:06 PM Subject: Re: [Utah-astronomy] Teflon
The only reason anybody ever uses 1/8" Teflon is because it's cheaper than 1/4". I prefer 1/4" because you can make the countersink deeper for the attaching screw and not worry about ever wearing down to it. Also 1/4" doesn't pucker up as much, if at all, when you tighten-down the attaching screws. Solid.
I'll have to pass, Brent, but thanks for making it available. I bought a 4'x4' sheet of 1/4" about 25 years ago, and checking find that I still have about a 1'x4' piece of it. Enough to last me the rest of my life, and then some. Plus a bunch of already cut pieces!
On Mon, Jan 19, 2015 at 3:15 PM, Brent Watson via Utah-Astronomy < utah-astronomy@mailman.xmission.com> wrote:
I just looked and sheet teflon is going for about $35 per square foot for the 1/8" thick stuff. Just a point of information. I am still looking for an offer. You may be surprised at what I will take. The stuff has been in my basement a LONG time.
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As the scope would be built from scratch, I'm asking for a piece of the 1/4" based on your post, if it comes available. ----- Original Message ----- From: "Chuck Hards" <chuck.hards@gmail.com> To: "Utah Astronomy" <utah-astronomy@mailman.xmission.com> Sent: Tuesday, January 20, 2015 5:22:31 AM Subject: Re: [Utah-astronomy] Teflon If you are replacing Teflon on an existing telescope, use the same thickness that was used originally. If building from scratch, 1/4" is preferred for the reasons I listed, but 1/8" will work if care is used in fastening it. On Mon, Jan 19, 2015 at 8:44 PM, Joan Carman <jcarman6@q.com> wrote:
Reads like I need a piece of 1/4" for sure, but apparently not much. If you can find other takers for the 1/4", I'd like to get a piece of it.
----- Original Message ----- From: "Chuck Hards" <chuck.hards@gmail.com> To: "Brent Watson" <brentjwatson@yahoo.com>, "Utah Astronomy" < utah-astronomy@mailman.xmission.com> Sent: Monday, January 19, 2015 6:16:06 PM Subject: Re: [Utah-astronomy] Teflon
The only reason anybody ever uses 1/8" Teflon is because it's cheaper than 1/4". I prefer 1/4" because you can make the countersink deeper for the attaching screw and not worry about ever wearing down to it. Also 1/4" doesn't pucker up as much, if at all, when you tighten-down the attaching screws. Solid.
I'll have to pass, Brent, but thanks for making it available. I bought a 4'x4' sheet of 1/4" about 25 years ago, and checking find that I still have about a 1'x4' piece of it. Enough to last me the rest of my life, and then some. Plus a bunch of already cut pieces!
On Mon, Jan 19, 2015 at 3:15 PM, Brent Watson via Utah-Astronomy < utah-astronomy@mailman.xmission.com> wrote:
I just looked and sheet teflon is going for about $35 per square foot for the 1/8" thick stuff. Just a point of information. I am still looking for an offer. You may be surprised at what I will take. The stuff has been in my basement a LONG time.
_______________________________________________ Utah-Astronomy mailing list http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy
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_______________________________________________ Utah-Astronomy mailing list http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Send messages to the list to Utah-Astronomy@mailman.xmission.com The Utah-Astronomy mailing list is not affiliated with any astronomy club. To unsubscribe go to: http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Then enter your email address in the space provided and click on "Unsubscribe or edit options".
participants (3)
-
Brent Watson -
Chuck Hards -
Joan Carman