BushAxe, post: 432443, member: 11897 wrote: Jeff?
Yep. Is that Jim?! I guess I don't know any other surveyors in Wilmington!
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A Harris, post: 432485, member: 81 wrote: I use Teflon tape on point connections of poles, tripods & bipods.
Does the tape stay on through multiple iterations of tip installation and removal? I'm curious.
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When you are changing the points regularly, all you need to do is apply some type of oil to keep the water out.
I have used a water hose oring washer to close the gap.
These days, my points stay on until the point is messed up and needs replaced.
The tape insures they will come off years down the line.
I then replace the tape with fresh supply.
The stuff is cheap and a roll goes very far
Chris Bouffard, post: 432470, member: 12313 wrote: There are a few versions out there, I call it a topo boot. I've used the quite a bit. The easiest one to use is made of plastic and slides over the point.
Yea that's what I use. There are threads on the outside of the point and the topo boot screws over it. I guess it's off by the thickness of the plast boot on the bottom but that's probably like half a hundredth...
I've done heaps of river surveys using a topo boot and as they're not really suited to accurate positioning over a station I cut squares of vinyl flooring the same size as diameter of boot.
Taking care I drill hole dead centre and push a 150 mm bugle screw through. I use those for my station points.
The pole can then be easily centred over the station.
Re blunt points if you can sharpen tools they're easily repointed on a belt sander.
It does take a bit of skill but worth the effort.
I do them without removing from pole.
Sweet jeebus you guys over think things. I just turn my rod upside down, double my HI and change the rod height to negative :p
jalbrz, post: 432535, member: 11371 wrote: Does the tape stay on through multiple iterations of tip installation and removal? I'm curious.
Yes it will, for a while. But if you are regularly changing tips you don't really need the lubricant so bad. Seized threads happen when you don't change the tip for a year or two.
jalbrz, post: 432433, member: 11371 wrote:
Here's my tip though. I put powdered graphite on the threads, on the days when I remember to, before threading on either tip. It has been working to prevent seizing over the past two years, and it doesn't get dirt stuck to it like grease.
I've been using lithium grease for years without any real issues with dirt. Here in the Pacific North 'Wet' my poles can actually fill up with water on a long winter day so I'm not sure the graphite would work well. I just make sure that the threads never hit the dirt and that the spare tips are always screwed onto something.
Zoidberg, post: 432429, member: 8841 wrote: Topcon previously made one (maybe they still do...) that would screw on under the plumb bubble when not in use. Pretty good idea.
I have a Crain composite prism pole with a "topo boot" that screws underneath the bubble. Excellent design. But I don't like the composite pole, because if I attach any kind of clamp (for data collector, or bipod) it deforms the outer section of the pole, and makes it difficult or impossible to raise and lower the inner section....
John Putnam, post: 433807, member: 1188 wrote: I've been using lithium grease for years without any real issues with dirt. Here in the Pacific North 'Wet' my poles can actually fill up with water on a long winter day so I'm not sure the graphite would work well. I just make sure that the threads never hit the dirt and that the spare tips are always screwed onto something.
Try Loctite anti sieze compound?