NACD Survey Workshop October 3-4, 2009 - UPDATE class is full

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Originally Posted by DaveP

mounted it on a slate with a bubble level.

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Dave, can you tell us how you mounted the compass and level? Not sure whether to use an epoxy or stainless screws/nuts and bolts. Also, can you get the bubble levels at a hardware store? I have never seen any but have never looked for them either.

Thanks for your help.

You can find a bulls eye level (bubble Level) at Ace Hardware

Is there any chance that someday that kind of stuff will be organise in mexico????

Sandy,

I know a lot of people use SS hardware to secure the compass to the slate but then you have a bolt/nut sticking out the back side. I used a little crazy glue and one plastic ziptie as a back up. Just be careful not to get any glue on the center / rotating part of the compass! A slate half this size would probably work fine for most people but I have been able to fill this one up more than once. The large slate is a pain in real tight / SM style caves but in a big cave just clip it off and forget it when not in use.

I found my bullet level at Ace Hardware as well, I don't always look at it but its nice to have.

Hope the pic comes out and this helps.

Dave

B and Dave - Thanks.

Be careful using "stainless" bolts. I have seen some cheap "stainless" hardware that was attracted to a magnet, and that stuff would effect the compass readings.

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Originally Posted by Attchoum

Is there any chance that someday that kind of stuff will be organise in mexico????

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Contact Mike Poucher, and ask. He might be down there on vacation sometime. There are a lot of good surveyors in MX, maybe one of them could do a similar class.

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Originally Posted by FW

Be careful using "stainless" bolts. I have seen some cheap "stainless" hardware that was attracted to a magnet, and that stuff would effect the compass readings.

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Maybe that would explain why all the caves I survey are going north :-)

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Originally Posted by DaveP

Hope the pic comes out and this helps.

Dave

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I use the same arrangement of compass and bubble level on a slate,but I don't like putting the info I am going get to log on the slate. I use Rite-in-the-Rain paper,make up a grid that I attach it to the slate. This will allow me to vary the information I collect based on the quality of the survey.

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Originally Posted by bgillespie82

You can find a bulls eye level (bubble Level) at Ace Hardware

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RV stores are a great place,plus they have some great flourescent,glow in the dark ones.