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Digital incidence meter

App or otherwise

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cymaz13/02/2019 21:26:17
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8306 forum posts
1148 photos

Anyone know of a good digital incidence meter or app? I’ve got the Robart needle meter but it’s sticking. I’ve asked Robart if they will send any new jewels.

Stuphedd13/02/2019 21:36:51
620 forum posts
320 photos

img_0035.jpgThere are lots of apps you can use !

Gary Manuel13/02/2019 22:11:56
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1791 forum posts
1507 photos

I got a friend with a 3D printer to print me a set of parts to make myself an incidence meter - details HERE.

The Android app I use is called "Clinometer + Bubble Level", which I think is one of the better spirit level type apps. I've even invested a couple of quid to add "relative" angle measurement and measurements of angles using the built in camera. The App should suit your needs perfectly.

Fun Flyer13/02/2019 23:10:48
270 forum posts
32 photos

Wasn't there an article in the mag a few years ago which described how to build your own and used the Clinometer App? I built one and it works very well. Looks very similar to the one in the photo.

Peter Jenkins13/02/2019 23:46:24
1183 forum posts
128 photos

I've tried using an app but I don't think it's as accurate or repeatable (same thing really) as the Robart incidence meter. I think the other problem is that the phone edge can be difficult to align properly with the inevitable buttons sticking out of either side. Robart do a digital version as well but I have to say that I prefer the analogue version myself.

Having said all that, unless you are going for great accuracy then using a less than perfect tool may be OK but don't expect too much.

cymaz14/02/2019 05:51:19
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8306 forum posts
1148 photos

Gary , great idea. And I know someone with  a 3D printer 

 

Thanks for the input. As I say, I’ve already got the Robart analogue meter. So I’ve got all the brackets and two different bar lengths. I’ve seen THIS on eBay , I just wonder if I could sit it on top? How good are these things?

Edited By cymaz on 14/02/2019 05:53:40

PeterF14/02/2019 07:32:22
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396 forum posts
558 photos

cymaz,

I have bought one of the ebay inclinometers, slightly different to the one you linked to, see here.

This has a magnetic base as do many of them, so I fastened a small steel sheet (galvanised) onto the top of the measurement rail with epoxy. It works a treat. Set up all the flying wires on my Tiger Moth with this.

I did initially set my Tiger Moth rigging up with my android tablet using the "Clinometer + bubble level" app, but found that the weight of the tablet was significant. I also found that over a long period of use as the tablet warmed up, the zero drifted and it was not repeatable.

dsc07380 (custom).jpeg

dsc07379 (custom).jpeg

Koen Smits14/02/2019 08:19:37
97 forum posts
114 photos

Hi all,

DIY incidence meter found on the german forum rc-network.de

**LINK**

language is german.

Koen.

onetenor14/02/2019 12:55:30
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1884 forum posts

Cymaz Sticking needle may be down to dirt. To clean it put some Lighter petrol ( a few spoonsful) in a straight sided container. A jug would be ideal or a mug. Suspend the meter works Tril over the fuel just inside the rim. On a string etc will do. cover it loosely and leave alone few days. Then remove it and look in the container. You'd be surprised how dirty it will be. Then using clock/watch oil and a darning needle lubricate the jewels and other pivot points. Use same method to clean clocks and watches.. Not digitals though. Trike would be even better but try and get some. Ether meths or Methanol would also work.. The fluid evaporates then condenses on the parts and drips off again taking dirt/dust and old oils with it. Dad did a lot of old clocks with that method.. You can't polish the plates though That's the only drawback but if you just want it clean without dismantling this is the way to go. DO NOT be tempted to use WD 40 It dries up quite quickly . Not sure if it leaves a deposit but is only useful for penetrant and water dispersant. Not a lubricant be warned. Good luck John / onetenor

MaL14/02/2019 13:05:00
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135 forum posts
13 photos
Posted by Gary Manuel on 13/02/2019 22:11:56:

I got a friend with a 3D printer to print me a set of parts to make myself an incidence meter - details HERE.

The Android app I use is called "Clinometer + Bubble Level", which I think is one of the better spirit level type apps. I've even invested a couple of quid to add "relative" angle measurement and measurements of angles using the built in camera. The App should suit your needs perfectly.

The problem with 3D printers and making things with holes is that the printer will tend to make the holes too small due in part to over-extrusion. Compounding the problem you had with your particular stl files is the hole in the incidencemeter_pince.stl is set to be only 7.9mm wide x 8.5mm tall. All the other parts with square holes were set to be 8.0mm x 8.0mm. In order to build a bit of clearance into all these stl's I have edited them to all have 8.5mm x 8.5mm square holes - that should make them a better fit on 8mm square ali tube.

Modified STL's available here **LINK** for 30 days......get them while they are still there

Gary Manuel14/02/2019 17:11:12
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1791 forum posts
1507 photos
Posted by MaL on 14/02/2019 13:05:00:
Posted by Gary Manuel on 13/02/2019 22:11:56:

I got a friend with a 3D printer to print me a set of parts to make myself an incidence meter - details HERE.

The Android app I use is called "Clinometer + Bubble Level", which I think is one of the better spirit level type apps. I've even invested a couple of quid to add "relative" angle measurement and measurements of angles using the built in camera. The App should suit your needs perfectly.

The problem with 3D printers and making things with holes is that the printer will tend to make the holes too small due in part to over-extrusion. Compounding the problem you had with your particular stl files is the hole in the incidencemeter_pince.stl is set to be only 7.9mm wide x 8.5mm tall. All the other parts with square holes were set to be 8.0mm x 8.0mm. In order to build a bit of clearance into all these stl's I have edited them to all have 8.5mm x 8.5mm square holes - that should make them a better fit on 8mm square ali tube.

Modified STL's available here **LINK** for 30 days......get them while they are still there

I did need to use a needle file to reduce the square hole size a bit. It wasn't much of a job, which just took a couple of minutes. Better too tight than too slack!

Peter, I know what you mean about the phone edges making the seating and measurements difficult to repeat, but it really hasn't been a problem. The phone tends to sit nice and solid and the measurements can easily be to tenths of a degree.

cymaz14/02/2019 17:36:13
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8306 forum posts
1148 photos

I removing the case to clean it , one of the jewels has popped out to goodness knows where...]<$€}¥<~]angry.

I’ve found ....THESE.... on eBay so there’s a good chance of a match. It’s worth a shot.

If I find a pair that fit , would anyone like to have a couple? There could be several in the bag. I can post in on 

Edited By cymaz on 14/02/2019 17:38:11

cymaz14/02/2019 17:41:59
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8306 forum posts
1148 photos

If that idea doesn’t work, then I will look again at the digital meter. And all because I want to get the Infinity 90 set up right.....does nothing go right with this buildcrying

cymaz20/02/2019 06:44:22
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8306 forum posts
1148 photos

The holed jewels arrived. All far too small for the naked eye to see. Never mind frown, I know someone that will make use of them.

Ended up buying a digital inclinometer, should arrive tomorrow. I will post on here how it looks and how easy it is to use.

eflightray20/02/2019 10:12:00
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560 forum posts
127 photos

Digital ?, jewels ?, too technical for me wink

I made a crude, but functional, one from Depron, uses a swinging needle.

It's light enough to slide along a wing out to the tip without causing any distortion.

incidence1 (1).jpg

No, that's not one of my wings, just a cutting board for photo purposes.

.

cymaz23/02/2019 10:48:38
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8306 forum posts
1148 photos

Made some progress. Had a bit of a play with it, and glued some old pop rivet pins onto my level bars. So far really impressed....

1c948a0f-c00b-4118-8a67-0ebb484647ea.jpeg

92d14c99-438c-42bb-bacf-f9cd1ca72cec.jpeg

PeterF23/02/2019 16:57:42
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396 forum posts
558 photos

£10 royalty payment for use of trade marked patent pending designlaugh although I note your bar is gold not red. Hope it works out for you.

cymaz25/02/2019 06:10:11
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8306 forum posts
1148 photos

Easy to set and the steel glued onto the bars is enough to hold the magnetic base while sitting flat on the bar.

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