16mm IDRIS

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16mm IDRIS

This topic has 182 replies, 13 voices, and was last updated 12 May 2016 at 20:15 by John Rudd.

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3 October 2015 at 15:37 #206482
John Rudd
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@johnrudd16576
Martin,

Indebted to you for the update on the next part.
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30 October 2015 at 15:44 #209915
martin ranson 2
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@martinranson2
To anyone building the IDRIS … there is an error in the sketch shown on page 661 in the latest copy of M.E. …

In the middle at the top, there are 2 joints shown using high temp. silver solder … only the end-ring joint on the left hand side needs to be high temp. silver solder ( SF 24 ) … the smaller tube on the right hand side can be fastened with ordinary silver solder ( SF 55 )
7 November 2015 at 14:52 #211030
martin ranson 2
Participant
@martinranson2
A request for help please … in part 5 of the IDRIS article, on page 218, I showed a photo of a commercial gas valve … very neat and very tiny … it is a combined fill and vent valve all in one… whenever I try to use it to fill a gas tank the flow of liquid gas slows right down … it takes 4 or 5 tries to fill the gas tank with a maximum volume of 54 cc … has anyone any ideas how to speed up the process please ? judging by the amount of condensation on the valve body I assume it is starting to freeze up … my old method which I have used for more than 20 years uses 3 separate valves for fill, vent and supply … they take up a lot of space and need a lot of work to produce them … however, they will reliably fill a gas tank to the correct level in one operation.

Has anyone any suggestions for what I am doing wrong please ??

martin.
7 November 2015 at 15:07 #211032
Steambuff
Participant
@steambuff
Martin,

Is the gas valve on the top of the gas tank and pointing vertically upwards?

When filling the tank the cylinder you are filling from must be vertical and upside down (Filler at bottom)

Dave
8 November 2015 at 14:09 #211126
martin ranson 2
Participant
@martinranson2
To Steambuff … thanks for your reply … "Yes" to both of your suggestions … I`m afraid it is not that.
27 November 2015 at 14:25 #214282
martin ranson 2
Participant
@martinranson2
To anyone building IDRIS … in part 8 of the series, on page 829, there are 2 errors … at the top of fig 34 there are 2 7 BA clearance holes shown … their distance from the top edge is given as 0. 350 inches … this measurement of 0. 350 should refer to the vertical support distance from the top edge of the plate as shown … the 2 holes are placed roughly between the 2 so as to straddle the centre of the 1/4 x 1/2 brass bar shown in part 3, fig 12, page 746.

The other error is also shown on page 829 just above the top of fig 35 … the melting temperature of Silver flo 24 is obviously not 8000 degrees … it is 800 degrees.

martin
12 May 2016 at 18:23 #238462
John Rudd
Participant
@johnrudd16576
I am about to embark on building Idris.

I have had a quick look through the issues relating to the build but find I've lost/misplaced/cant find issue 4514….Maybe the dog ate it..?

Anyway, could someone tell me the details contained in that instalment to see if they are of any relevance please before I rush out and buy a second copy?

Any help appreciated….
12 May 2016 at 20:15 #238484
John Rudd
Participant
@johnrudd16576
All sorted now.

Thanks to those generous folk that assisted in resolving my problem, you know who you are…
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