Author Topic: Fanuc Servo Wiring and Testing Questions  (Read 21526 times)

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spottrouble

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Re: Fanuc Servo Wiring and Testing Questions
« Reply #66 on: May 24, 2012, 07:32:58 PM »
Well the laminate is ready to be planed, then table saw the profile in, just need to find a friend with those tools. I have a table saw, in fact 2 of them, but they are at the other home :-\.

Scrap yard called me this morning, said I needed to come look at what had just arrived. It was a huge robotic forklift system, most of the motors were just plain DC forklift motors, but there was one that I just was not sure of. Data tag showed Nm, KW, 35amps and 460v 60 hz, spent 2 hours getting it out and pulling the brake, spun it as fast as I could and got 0v :P

I did get some resistive elements, hoping I can use them for a dump load, they are marked 17 ohm. Last thing I found was 8 big turnbuckles, in like new condition, about 2' long fully retracted, $12 for all of them 8).

Doing my best to build this bird on the cheap, yet pretty soon I'll have to bite the bullet on things like inverter/charge controller/solar panels, and god knows what else.

spottrouble

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Re: Fanuc Servo Wiring and Testing Questions
« Reply #67 on: May 31, 2012, 02:16:13 AM »
No luck on getting the prop laminate planed, yet, got a phone# of a guy to call tomorrow.

Turned a prop hub out of aluminum a few nights ago, just need to get it in the mill and index & drill holes for the mounting bolts.

Started on the chassis today (for Star Trac genny), HWP book shows offset to the left (looking straight down from above turbine), yet I notice many on this site that are offset to the Right? I'm thinking rotation of blades might make a difference........? Is there a preferred direction of rotation for the blades?

Friend looked at my computer today and said the photo program I have is junk and cannot resize pics. Then she asked why I wanted to resize them and I explained they needed to be 1.5KB to post here and she said if I did that they would be tiny and no one could see them. What if I used a photo site like flicker or photobucket, is that acceptable with links? Or is it verboten? Admins here seem a tad touchy ::) so I'm afraid to try without asking permission.

Kristi

fabricator

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Re: Fanuc Servo Wiring and Testing Questions
« Reply #68 on: May 31, 2012, 09:54:36 AM »
Yes photo bucket is acceptable it automatically resizes pics, a lot of guys believe if your offset is to the left looking at the mill from up wind you should run clockwise, counter clockwise for a right side offset. it has to do with gyroscopic progression and furling.
I aint skeerd of nuthin.......Holy Crap! What was that!!!!!
11 Miles east of Lake Michigan, Ottawa County, Robinson township, (home of the defacto residential wind ban) Michigan, USA.

birdhouse

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Re: Fanuc Servo Wiring and Testing Questions
« Reply #69 on: May 31, 2012, 11:23:55 AM »
kristi-
you've got quite the dump near ya!  good scores on the batteries, turnbuckles, ect! 

i use infranview (free) to resize pics to 150Kb  not 1.5Kb.  i usually just resize them to 640x480 and they end up less than 150Kb.  then i upload them to photobucket, then post here.  never had issues with that. 

bring on some pics of your progress! 

adam

spottrouble

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Re: Fanuc Servo Wiring and Testing Questions
« Reply #70 on: June 02, 2012, 02:08:22 AM »
Got the laminate planed today, and drilled bolt holes in the prop hub.

Lets try some pics
Here is the driveshaft I made for lathe testing the gens
http://www.flickr.com/photos/79852204@N06/7316584008/

Hmm, can't seem to make the pic show here, but at least the link works, so here are a few more

OCV testing Star Trac gen
http://www.flickr.com/photos/79852204@N06/7316581932/

The battery bank, so far
http://www.flickr.com/photos/79852204@N06/7318514600/

The turnbuckles
http://www.flickr.com/photos/79852204@N06/7318518106/

The Zantrex Portawattz inverter I found in the shop this evening, friend found it in a car she bought a few years ago, no idea if it works.
http://www.flickr.com/photos/79852204@N06/7318515128/
http://www.flickr.com/photos/79852204@N06/7318517058/

The prop hub, for a 2 blade prop
http://www.flickr.com/photos/79852204@N06/7318514090/

Started on chassis this evening, more pics soon.

Kristi

spottrouble

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Re: Fanuc Servo Wiring and Testing Questions
« Reply #71 on: June 04, 2012, 01:08:11 AM »
Finished the chassis Saturday night, used 2" pipe for the yaw bearing tube, and 3/4" inch pipe for the tail pivot, kind of tried to scale it down a bit from plans in HWP book, yet most length dimensions are the same.

http://www.flickr.com/photos/79852204@N06/7333275822/

Cleaning out truck today and found this, I pulled it off that big robotic forklift last week, not sure if its anything I can use, it might just be fleabay fodder.
http://www.flickr.com/photos/79852204@N06/7333276880/
http://www.flickr.com/photos/79852204@N06/7333277464/

Kristi :)

spottrouble

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Re: Fanuc Servo Wiring and Testing Questions
« Reply #72 on: June 04, 2012, 01:30:36 AM »
Just tried finding more info on that battery controller, apparently its used as a "fuel gauge" for electric lift trucks, electric vehicles, etc. I'm thinking why not in an RE system, it would let me know state of charge, and I think it will shut batteries off at a certain point of discharge. Here is a link to mfr page
http://www.helmarparts.com/Curtis_Instruments_Battery_Controllers_s/264.htm

Any ideas?

Kristi

spottrouble

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Re: Fanuc Servo Wiring and Testing Questions
« Reply #73 on: July 03, 2012, 10:22:47 PM »
Well I have not given up on my build, I've just had alot of bad back days this last month :(. I guess I could say I finished the tail last weekend, except I've decided I'm not quite happy with it, so I'm chopping the pivot pipe off the tail this evening and re-doing it. Anyways here is how it looks now
http://www.flickr.com/photos/79852204@N06/7498406994/

Went and picked up the free tower last night (my back was regretting it this morning), the guy said it was 90ft, turns out its only 60, thats ok because if I read FAA regs right I'm limited to 70 ft max height. Here is the tower
http://www.flickr.com/photos/79852204@N06/7498409008/

Kristi

birdhouse

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Re: Fanuc Servo Wiring and Testing Questions
« Reply #74 on: July 03, 2012, 10:37:30 PM »
looks good!  just curious, how much offset on the motor versus center of the yaw tube did you go with?

what size blades are you planning on?  and did you tilt back the motor mount a bit to create more clearance between the blade tips and the tower stub? 

adam

spottrouble

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Re: Fanuc Servo Wiring and Testing Questions
« Reply #75 on: July 04, 2012, 02:30:17 AM »
Thanks! Offset is slightly adjustable, range is 4.5" to 5" from center of yawtube to center of shaft. Prop is only 4' diameter, 2 blade, GOE222 profile. Sometimes think I should have gone to 5', and trimmed down if needed, oh well. The "generator" is tilted back approx 5 degrees, thinking I should have gone 10, or mounted gen a tad further forward. Looks like I'll have 12" clearance between prop and tower stub.

Chopped pivot tube off tail section tonight, just was not happy with it on several levels, wall was too thin, I should have cut it 1" longer, and since I did not, the notched section did not fit well. On top of that the tail barely clears the generator when it furls, by re-doing it, it will gain clearance. If I was doing it again I'd mount the gen lower.

I plan on welding a 3" section of all-thread off the end of the tail, if I need to add weight thats where it will go. Covering for the tail will be Dacron, glued and heat shrunk, then painted with silver paint for UV protection, then exterior Latex paint.

A big part of my decision to do the smaller one first was just wanting to get a better feel for the interconnectivity  of the various parts, its getting a whole lot easier to see.

Kristi :)

birdhouse

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Re: Fanuc Servo Wiring and Testing Questions
« Reply #76 on: July 04, 2012, 02:56:01 AM »
Quote
Offset is slightly adjustable, range is 4.5" to 5" from center of yawtube to center of shaft. Prop is only 4' diameter, 2 blade, GOE222 profile.  tilted back approx 5 degrees

you've done your homework!  looks like you'll have a very nice first mill.  looking forward to the results on the fanuc once you get to that! 

a foot should be plenty for a 4' prop.  i doubt a 2' chunk of goe 222 is going to flex that much!  you could always get creative with the hub to turn your 4' diameter blades into a 5' diameter prop...  the inner third doesn't do much anyways! 

adam