@David: There's a picture in post #578 showing how I did my power harness...basically just as you describe, 4 of the EC3 connectors for the harness-to-ESC connection, and the 5th for the harness-to-batt connection. I debated whether or not to put the 4 connectors in between the ESCs and harness...was glad I did when it came time to program the ESCs. Guess the potential downside might be the additional reliability issues that could arise by having the extra connections. Time will tell whether this is an issue for me or not.
On the harness configuration, I did it just as is shown in the hoverfly videos (1-to-4 splice). It was reasonably straightforward.
Fair warning: I found the blue EC3 connectors to be a bit challenging to solder well...especially the harness-to-batt connection. See post 578 for details.
EDIT: also, you'll need to go buy 8 more of the #4-40 self-locking nuts (kit ships w/ 8, you'll probably need 16).
I've made a lot more progress on my ELEV-8 kit but I'm currently at the point of soldering the power connectors onto the ESCs. I know that I should use a male bullet connector on the two ESC power leads but I'm not sure which housing to use with the male connectors. Should I use the smaller diameter housing that fits inside of the large diameter housing when the two connectors are joined?
I've made a lot more progress on my ELEV-8 kit but I'm currently at the point of soldering the power connectors onto the ESCs. I know that I should use a male bullet connector on the two ESC power leads but I'm not sure which housing to use with the male connectors. Should I use the smaller diameter housing that fits inside of the large diameter housing when the two connectors are joined?
I looked at some pictures of connectors on the web and it looks like I was wrong. The larger of the blue housings seems to go with the male connector and the smaller goes with the female connector. Can someone verify that for me?
I looked at some pictures of connectors on the web and it looks like I was wrong. The larger of the blue housings seems to go with the male connector and the smaller goes with the female connector. Can someone verify that for me?
I think this link gives me the answer to my question. It seems that the larger shell is used with the male connectors and the smaller shell is used by the female connectors. At least that's the way they are pictured here.
For what it's worth, I did not use any connectors on my power harness:
I did end up using the 3.5mm bullet connectors between the ESC's and the 2217's (Female on the ESC side, Male on the 2217 side):
I directly soldered the 13" "Extensions" to the 2217's and then applied heat shrink.
Then I soldered male 3.5mm ends on to the ends of the 13" extensions.
And finally soldered female 3.5mm ends on the ESC's.
I hope that helps!
-Kevin (Not the Parallax Kevin Cook - The other one )
-Kevin (Not the Parallax Kevin Cook - The other one )
Kevin, a real "welcome" to our forums! I noticed that the ELEV-8 was ordered by a "Kevin Cook" so I told our Kevin Cook "hey man, I know you like this place but you can have this stuff for free!". We all had a great laugh over this anomaly.
Anyway, welcome to the forums. We look forward to seeing more of you. Let us know how the ELEV-8 works out, good and bad.
Thanks Ken!
WOW! What a job perk!!! Free?!?! I'd build all my dream projects!
How on earth do you regulate that? Is it x dollars of parts per month, or something like that?
That's one hell of a perk - I think I'd rather pay for medical and dental insurance and have free Parallax stuff as a perk
-Kevin
Thanks Ken!
WOW! What a job perk!!! Free?!?! I'd build all my dream projects!
How on earth do you regulate that? Is it x dollars of parts per month, or something like that?
That's one hell of a perk - I think I'd rather pay for medical and dental insurance and have free Parallax stuff as a perk
-Kevin
Well, such a policy has major benefits for Parallax. First, I'll cover the inventory accuracy aspect of such an open policy. When you can have anything you want from Parallax and all you need to do is record what you took on a clipboard for the Inventory Manager (no questions asked, no justification - unless it's a QuadRover) the result is that our inventory accuracy is 99.95%. In prior years, some staff who managed the back half of the business thought the solution was "lock it up - my team will pull the parts you need - with your manager's approval only". The mere thought of such a cruddy idea was enough to open the place up to make it as free as can be. Turns out this worked fine.
Next, there's no hoarding this way. If everything is accessible then you can get what you need anytime, so what's the point of having ten boards at your desk?
Sometimes one of us has built a project and wants to re-target the parts for their next project - but we really want to keep their past project alive for some reason - often it is cheaper to get more parts than tear down a project in an afternoon. Their labor can far exceed the cost of the parts.
And strangely, once you can have your hobby anytime you want it you realize that the thrill was really in the chase!
But it's not all easy for us. I think the team makes great sacrifices in other ways. Some work long hours to make a difference and others take it home to manage overseas communication on a Sunday night. Others pour their guts into producing the finest result they can, day after day.
Well, such a policy has major benefits for Parallax. First, I'll cover the inventory accuracy aspect of such an open policy. When you can have anything you want from Parallax and all you need to do is record what you took on a clipboard for the Inventory Manager (no questions asked, no justification - unless it's a QuadRover) the result is that our inventory accuracy is 99.95%. In prior years, some staff who managed the back half of the business thought the solution was "lock it up - my team will pull the parts you need - with your manager's approval only". The mere thought of such a cruddy idea was enough to open the place up to make it as free as can be. Turns out this worked fine.
Next, there's no hoarding this way. If everything is accessible then you can get what you need anytime, so what's the point of having ten boards at your desk?
Sometimes one of us has built a project and wants to re-target the parts for their next project - but we really want to keep their past project alive for some reason - often it is cheaper to get more parts than tear down a project in an afternoon. Their labor can far exceed the cost of the parts.
And strangely, once you can have your hobby anytime you want it you realize that the thrill was really in the chase!
But it's not all easy for us. I think the team makes great sacrifices in other ways. Some work long hours to make a difference and others take it home to manage overseas communication on a Sunday night. Others pour their guts into producing the finest result they can, day after day.
I have had some very successful flights thanks to Ken that messeged me back on new years day and sent me the prop adapter that I stripped out. All of the Parallax parts survived all 3 crashes but I broke a prop on the last crash. I already have some replacements ordered from APC but was wondering if you can describe the crash kit/s your going to sell?
I have had some very successful flights thanks to Ken that messeged me back on new years day and sent me the prop adapter that I stripped out. All of the Parallax parts survived all 3 crashes but I broke a prop on the last crash. I already have some replacements ordered from APC but was wondering if you can describe the crash kit/s your going to sell?
Yes, they are quite a helpful crew there at Parallax! Also, I'd like to know what's in the crash kit myself. I suspect I'll be needing it once I get to the point where I can try flying my ELEV-8 kit!
I have one comment on the kit so far. It seems like it might have been better to supply lock nuts and longer screws for the places where the landing gear attach to the frame. Some of those joints seem a little loose on my kit.
OK, the brainwashing is now complete. Two of you have taken the bait!
Ken Gracey
Hmmm... Did you accomplish this with some subtle flashing of the LEDs on the QuickStart board sending subliminal messages to anyone looking in the right direction? Clever!
I have one comment on the kit so far. It seems like it might have been better to supply lock nuts and longer screws for the places where the landing gear attach to the frame. Some of those joints seem a little loose on my kit.
I agree - I had nylon lock nuts on hand, so I used therm where the gear attaches to the frame. The holes on that side were too large and didn't lock-in to the threads like they did on the motor side. I think it would also be good if the docs included the details on the EC3 connectors (as in which side is male / female, where to use the "pins" and "tubes", etc) as it isn't obvious.
That's cool, John. I really like the indoor flying space, too. No reason we can't wrap LED tape around the ELEV-8 motor mounts.
Interesting business snippet in the podcast you sent me recently. The guy from Hobby Lobby was talking about buying LEDs and lighting for his business and explained how it no longer has any margin because it's so widely distributed and readily available over the internet. I have first-hand experience with what he's talking about - I've priced this stuff in the Shenzhen component markets and the Chinese suppliers are now reaching us over eBay at the same price (with free shipping). Great information for quadcopter fliers who want to light their craft.
Wonderful, Rich! Great work, and congrats on making some ELEV-8 kits. As everybody knows, these drawings are free for everybody's use without restriction! We are very happy to see others make ELEV-8s.
The booms can easily be made on a drill press, too.
I just don't think I can hold out much longer without getting a laser cutter in my home office. . . watching you and Phil Pilgrim make all kinds of neat parts is starting to cause some serious envy!
Hmmm... Did you accomplish this with some subtle flashing of the LEDs on the QuickStart board sending subliminal messages to anyone looking in the right direction? Clever!
Ken Flashy-Thing'd me...some of you may get that...
I am planning on doing a GPS Navigation Demo for the Expo in April. Perhaps I will have the ELEV-8 Deliver an S2 to a waypoint somewhere autonomously.
I just don't think I can hold out much longer without getting a laser cutter in my home office. . . watching you and Phil Pilgrim make all kinds of neat parts is starting to cause some serious envy!
I want a laser too, but a CNC can do pockets (not just holes) and other stuff. This is a relatively simple frame (not curved), but it'd be tricky to do on a laser.
I just don't think I can hold out much longer without getting a laser cutter in my home office. . . watching you and Phil Pilgrim make all kinds of neat parts is starting to cause some serious envy!
Agree that a CNC router is a handy tool to also have. I'd probably choose the router first, then the laser, but both are ideal.
This is a pretty nice router for home or light commercial work, from what I've read. It certainly compares well with my 10 year old router, which is smaller and can't run on anything above Windows 98. I asked Santa for one of these, but he didn't come through for me. Again.
Now I need something that only Parallax sells - Landing gear - my last crash finally snapped them are you going to sell these soon Ken? Also am I the only one brave enough to admit to crashes? I know the answer to that second question - learn how to fly dummy! But this thing is so fun that it's hard not to play.
Hmm, I think in order to make eight more I would need to order more material. I can surely do it, but let's see if Ken has a solution for you. If not then I would be happy to make some.
Comments
On the harness configuration, I did it just as is shown in the hoverfly videos (1-to-4 splice). It was reasonably straightforward.
Fair warning: I found the blue EC3 connectors to be a bit challenging to solder well...especially the harness-to-batt connection. See post 578 for details.
EDIT: also, you'll need to go buy 8 more of the #4-40 self-locking nuts (kit ships w/ 8, you'll probably need 16).
http://www.alibaba.com/product-gs/328989280/battery_EC3_Connector/showimage.html
If anyone else knows differently please let me know.
Thanks,
David
Here are a few how to links that may help you:
http://www.e-fliterc.com/Articles/Article.aspx?ArticleID=1768
http://www.rcheliresource.com/how-to-soldering-an-ec3-connector/
For what it's worth, I did not use any connectors on my power harness:
I did end up using the 3.5mm bullet connectors between the ESC's and the 2217's (Female on the ESC side, Male on the 2217 side):
I directly soldered the 13" "Extensions" to the 2217's and then applied heat shrink.
Then I soldered male 3.5mm ends on to the ends of the 13" extensions.
And finally soldered female 3.5mm ends on the ESC's.
I hope that helps!
-Kevin (Not the Parallax Kevin Cook - The other one
Kevin, a real "welcome" to our forums! I noticed that the ELEV-8 was ordered by a "Kevin Cook" so I told our Kevin Cook "hey man, I know you like this place but you can have this stuff for free!". We all had a great laugh over this anomaly.
Anyway, welcome to the forums. We look forward to seeing more of you. Let us know how the ELEV-8 works out, good and bad.
Sincerely,
Ken Gracey
WOW! What a job perk!!! Free?!?! I'd build all my dream projects!
How on earth do you regulate that? Is it x dollars of parts per month, or something like that?
That's one hell of a perk - I think I'd rather pay for medical and dental insurance and have free Parallax stuff as a perk
-Kevin
Well, such a policy has major benefits for Parallax. First, I'll cover the inventory accuracy aspect of such an open policy. When you can have anything you want from Parallax and all you need to do is record what you took on a clipboard for the Inventory Manager (no questions asked, no justification - unless it's a QuadRover) the result is that our inventory accuracy is 99.95%. In prior years, some staff who managed the back half of the business thought the solution was "lock it up - my team will pull the parts you need - with your manager's approval only". The mere thought of such a cruddy idea was enough to open the place up to make it as free as can be. Turns out this worked fine.
Next, there's no hoarding this way. If everything is accessible then you can get what you need anytime, so what's the point of having ten boards at your desk?
Sometimes one of us has built a project and wants to re-target the parts for their next project - but we really want to keep their past project alive for some reason - often it is cheaper to get more parts than tear down a project in an afternoon. Their labor can far exceed the cost of the parts.
And strangely, once you can have your hobby anytime you want it you realize that the thrill was really in the chase!
But it's not all easy for us. I think the team makes great sacrifices in other ways. Some work long hours to make a difference and others take it home to manage overseas communication on a Sunday night. Others pour their guts into producing the finest result they can, day after day.
Ken Gracey
Sounds like Parallax is a great place to work!!
It certainly is! :thumb:
I have one comment on the kit so far. It seems like it might have been better to supply lock nuts and longer screws for the places where the landing gear attach to the frame. Some of those joints seem a little loose on my kit.
OK, the brainwashing is now complete. Two of you have taken the bait!
Ken Gracey
I agree - I had nylon lock nuts on hand, so I used therm where the gear attaches to the frame. The holes on that side were too large and didn't lock-in to the threads like they did on the motor side. I think it would also be good if the docs included the details on the EC3 connectors (as in which side is male / female, where to use the "pins" and "tubes", etc) as it isn't obvious.
Here is a YouTube video of it flying: http://www.youtube.com/watch?v=a6Y3_3X6-xI
...Tiger
That's cool, John. I really like the indoor flying space, too. No reason we can't wrap LED tape around the ELEV-8 motor mounts.
Interesting business snippet in the podcast you sent me recently. The guy from Hobby Lobby was talking about buying LEDs and lighting for his business and explained how it no longer has any margin because it's so widely distributed and readily available over the internet. I have first-hand experience with what he's talking about - I've priced this stuff in the Shenzhen component markets and the Chinese suppliers are now reaching us over eBay at the same price (with free shipping). Great information for quadcopter fliers who want to light their craft.
Ken Gracey
Wonderful, Rich! Great work, and congrats on making some ELEV-8 kits. As everybody knows, these drawings are free for everybody's use without restriction! We are very happy to see others make ELEV-8s.
The booms can easily be made on a drill press, too.
I just don't think I can hold out much longer without getting a laser cutter in my home office. . . watching you and Phil Pilgrim make all kinds of neat parts is starting to cause some serious envy!
Ken Gracey
Ken Flashy-Thing'd me...some of you may get that...
I am planning on doing a GPS Navigation Demo for the Expo in April. Perhaps I will have the ELEV-8 Deliver an S2 to a waypoint somewhere autonomously.
UPDATE: Please see the following post for important updates.
I want a laser too, but a CNC can do pockets (not just holes) and other stuff. This is a relatively simple frame (not curved), but it'd be tricky to do on a laser.
http://forums.parallax.com/showthread.php?136787-QuadX-my-latest-Propeller-with-Propellers&p=1064439&viewfull=1#post1064439
I've never seen Ken in a black suit. He must keep it hidden?
Agree that a CNC router is a handy tool to also have. I'd probably choose the router first, then the laser, but both are ideal.
This is a pretty nice router for home or light commercial work, from what I've read. It certainly compares well with my 10 year old router, which is smaller and can't run on anything above Windows 98. I asked Santa for one of these, but he didn't come through for me. Again.
http://www.rockler.com/product.cfm?page=19441
Of course it'll do expanded PVC, HDPE, ABS, acrylic, Delrin, etc.
-- Gordon
I will admit that mine is still in the box it came in. Things have been very busy around here.