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FPV_Enthusiast
13th May 2015, 10:31 PM
Hello all,

First post. Don't have the time to go into detail every part used. Most of it was custom, except for the metal Wraith cage, and Mad Torque base which was fun but way too easily breakable. Looking to upgrade to all metal axles in the future.

Transmitter used is a Partom 800MW 1.2ghz. Yagi on my roof. Lemon RX with DX5e as controller. I had planned on boosting the DX5e with a 2.4ghz amplifier, but as it was I could still get 1/3 mile from sitting at my computer screen with that setup. The camera is custom fabricated using a chipset from one of my security cameras. 12V 10,000mah for the Video TX. 4S 5000mah for the crawler (regulated at 9.1 volts) 4WS Conversion, high torque digital servo. Aluminum Servo arms.

When I intermittently lost signal, the capture card I was using reverted to a freeze-frame of the feed from a few seconds before, instead of going to black. It can be a little confusing when driving. I figured how to fix it by adding a secondary analog capture device before the PC card.


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https://www.youtube.com/watch?v=Y8amfPFQdm8

FPV_Enthusiast
28th May 2015, 05:58 PM
I also used the crawler to do a crawlspace inspection and wanted to share.

There's a few seconds cut at one point where I have to untangle the wheel from an ac line.

It was a pretty slick move but I sent this upload to the owner and didn't want to freak them out anymore than I had to about a toy car driving around down there. :)

Unfortunately I'd need something like a 1/16th crawler to access the other part of the houses crawlspace that's blocked by the ventilation system.


https://www.youtube.com/watch?v=IiU6l4Q0sDg

ican3d
8th September 2015, 11:47 PM
Count me in, just got mine a crawler/rock racer too, here my vid:


http://www.youtube.com/watch?v=rDQYi0MuUyU


http://www.youtube.com/watch?v=c8vrjF2D8vQ

Ted1984
1st October 2015, 05:17 AM
Awesome images and videos of rc crawlers. I also bought a cool rc crawler from http://www.thehobbyworx.com/rc-cars/electric-cars/1-8-scale/hsp-1-8-radio-controlled-off-road-rock-crawler-24-ghz.html , at reasonable price of $249.99. I will do some modifications with its body to install a camera, and post photos and videos.

Roboforcer X2000
1st October 2015, 07:41 AM
Awesome images and videos of rc crawlers. I also bought a cool rc crawler from http://www.thehobbyworx.com/rc-cars/electric-cars/1-8-scale/hsp-1-8-radio-controlled-off-road-rock-crawler-24-ghz.html , at reasonable price of $249.99. I will do some modifications with its body to install a camera, and post photos and videos.
+1 for 1/8, the bigger the better:) I got RedCat 1/8 and it was still not big enough for me so I rebuilt the body, inverted wheels and did other mods. More info here: http://fpvlab.com/forums/showthread.php?31462-ROBOCRAWLER. It is sitting on the bench atm and I can't find any time to finish it completely...

FPV_Enthusiast
1st March 2016, 12:45 AM
I added too much weight to my mad torque and accidentally ran into a piece of rebar sticking out of the ground and with all that weight it snapped the plastic axle. While the mad torque is great on it's own when you start adding all that weight you are just asking to break something. If I could do it all over again I would have gone with a Gmade rock crawler.


HAL is back with all steel Super Bully Axles, dual RC4WD ESCs, dual RC4WD 45T motors, aluminum side and roof panels, and a 2000mw 1.2ghz VideoTX and 2000mw Sunhanz 2.4ghz booster. The booster works great on my Dx5e. I have an RP SMA cable ran out to the top of the controller so I can affix a directional antenna or the booster. I like the capability of not having to use the booster if I don't have too.

The range is great. I'm waiting for Daemon to come flame me for the amount of power I'm using :-) but I just ditched an 800mw Partom AV transmitter because this 2000MW is giving me about 4 times the video range.

Directional antennas just don't cut it with ground pounders. Need raw power. Too much multi-pathing I think.

Right now I'm past a half mile without issue.

I just ordered 1.2ghz bluebeam antennas for testing as while the dipole combo (or yagi on my roof if I'm at home) gives me great range, every time the crawler leans away from vertical the signal flashes in and out. I'm hoping I can sacrifice some range for a clearer picture with the bluebeam cloverleafs.

I'm just not sure how to protect a cloverleaf from being bent up during FPV crawling sessions, without interfering with or blocking the signal.

Here's some new videos testing out the new setup. I'll post some pictures soon.



https://www.youtube.com/watch?v=MW-FwuOIzKw



https://www.youtube.com/watch?v=KgdhUBYSZqM

FPV_Enthusiast
11th March 2016, 03:01 AM
http://i.imgur.com/ZiKPEzIh.jpg


My servo camera mount came loose and the servo started to develop play leaving my last video really shakey. I've since replaced the servos and locked the tilt axis.

Also added extra suspension to get more fluid video

Now I have 3 FPV cameras and a switcher to change between the views.

http://i.imgur.com/kHBfQg2h.jpg

http://i.imgur.com/2t72vHuh.jpg






https://www.youtube.com/watch?v=Jt-KNcFm4x4

CongoSavanne
22nd March 2016, 12:19 PM
I would like to try out some ground vehicles, is it possible to set these up with a Taranis? Are there any tutorials you might recommend for use a standard TX?

FPV_Enthusiast
23rd March 2016, 02:29 AM
I would like to try out some ground vehicles, is it possible to set these up with a Taranis? Are there any tutorials you might recommend for use a standard TX?

The FRSKy Taranis is a whole different beast. It can accept 433Mhz modules if I'm not mistaken. There's someone on youtube called Bluestreak who used dragonlink in the UHF range and got really far with their crawler. Much farther than I was able to get with 2.4GHZ @ 2000 Milliwatts .

I would look for UHF modules for the Taranis. But make sure whatever you buy it has enough power. Dragonlink if you can swing it. It is very good.

CongoSavanne
23rd March 2016, 12:26 PM
The FRSKy Taranis is a whole different beast. It can accept 433Mhz modules if I'm not mistaken. There's someone on youtube called Bluestreak who used dragonlink in the UHF range and got really far with their crawler. Much farther than I was able to get with 2.4GHZ @ 2000 Milliwatts .

I would look for UHF modules for the Taranis. But make sure whatever you buy it has enough power. Dragonlink if you can swing it. It is very good.
Thanks for the info, I was just wondering about using a stick contyroller instead fo the standard "wheel and trigger".

I had a Ruckus truck and the controller lost signal after ~50 feet, I tried using a orangetx module on the taranis but never got it bound, I lost interest in ground vehicles after that, but watching some of these videos makes me want to try it again.

Is driving a ground vehicle doable with a stick controller?

FPV_Enthusiast
23rd March 2016, 12:43 PM
Thanks for the info, I was just wondering about using a stick contyroller instead fo the standard "wheel and trigger".

I had a Ruckus truck and the controller lost signal after ~50 feet, I tried using a orangetx module on the taranis but never got it bound, I lost interest in ground vehicles after that, but watching some of these videos makes me want to try it again.

Is driving a ground vehicle doable with a stick controller?


Ever play a playstation game where you had to drive a car?

The left stick is for my pan and tilt. The right stick is for throttle and steering.

The only thing I noticed was the steering adjustments at high speeds are very sensitive.

For crawling it works well. I don't know how well it would work on something really high speed.

I purchased a hobbyking servo slow down controller and it makes steering at high speeds with a stick controller a lot more fun and easy. You can throw the stick all the way to the right and it only moves to the right a little at first. Otherwise I would be at full throttle and I'd move the stick left or right just barely off axis and the crawler would veer hard off course.

CongoSavanne
23rd March 2016, 05:24 PM
Ever play a playstation game where you had to drive a car?

The left stick is for my pan and tilt. The right stick is for throttle and steering.

The only thing I noticed was the steering adjustments at high speeds are very sensitive.

For crawling it works well. I don't know how well it would work on something really high speed.

I purchased a hobbyking servo slow down controller and it makes steering at high speeds with a stick controller a lot more fun and easy. You can throw the stick all the way to the right and it only moves to the right a little at first. Otherwise I would be at full throttle and I'd move the stick left or right just barely off axis and the crawler would veer hard off course.

Any recommendations on a decent entry level 4 wheeler or crawler?

Crawling looks fun, I like fast though.

edin508
23rd March 2016, 07:46 PM
My first 1/8 scale RC cars were stick controls, they didn't have the wheel style back then and it worked great.

FPV_Enthusiast
24th March 2016, 02:20 PM
Any recommendations on a decent entry level 4 wheeler or crawler?

Crawling looks fun, I like fast though.



Everyone likes the 1/8th exceed crawlers. They are fun, and crawl well. But they are also plastic and if you are FPVing for miles you will eventually brake that plastic. And not to say exceed crawlers are bad. I find them better than the redcats.

Gmade R1 Crawler is a 1/10th scale. But I do like it. You can get it for about 250. That is an investment that won't brake like a plastic crawler.

Gmade had a 1/8th Spider crawler but it looks like it's been discontinued.

The great thing about moa crawlers is that a lot of the parts are compatible. My crawler is made from parts of 5 different crawlers!

CongoSavanne
24th March 2016, 04:47 PM
Everyone likes the 1/8th exceed crawlers. They are fun, and crawl well. But they are also plastic and if you are FPVing for miles you will eventually brake that plastic. And not to say exceed crawlers are bad. I find them better than the redcats.

Gmade R1 Crawler is a 1/10th scale. But I do like it. You can get it for about 250. That is an investment that won't brake like a plastic crawler.

Gmade had a 1/8th Spider crawler but it looks like it's been discontinued.

The great thing about moa crawlers is that a lot of the parts are compatible. My crawler is made from parts of 5 different crawlers!

Thank you!

CongoSavanne
30th March 2016, 11:41 PM
Holy crap!
I've been checking these things out and they are way more elaborate than multirotors.

That Gmade R1 is like a real "manned" vehicle with all those parts.

FPV_Enthusiast
31st March 2016, 01:55 AM
Yeah I really like ground FPV because it gets you safely familiarized with the aspects of FPV without freaking out that you've lost your rig mid air.

Integy makes two 1/8th RTR kit

http://www.integy.com/st_prod.html?p_prodid=7221#.Vvy8_XrOnZ4

http://www.integy.com/st_prod.html?p_prodid=5843#.Vvy-vXrOnZ4 (http://www.integy.com/st_prod.html?p_prodid=7221#.Vvy8_XrOnZ4)

I finally forked over the cash to get some Super Bully (1/8th size) Axles from RC4WD which aren't even in stock anymore but the quality of the axle was well worth it. I don't see how it could ever brake. It's made from billet grade zinc.

If you want to set up your own custom ground FPV crawler, I'd start with some 1/8th MOA axles like this (there a few brands with metal axles, Integy, RC4wd to name a few ).

http://www.integy.com/st_prod.html?p_prodid=16339&p_catid=197&ratesortby=New#.Vvy8hnrOnZ4

You'd need the front and rear axles, a body maybe from an Exceed madtorque/maxstone 1/8th (RC recycler always has different crawler bodies in stock)

Measure how much linkage you need after you get the axles and body and search for that size. I got lucky when using Super Bully axles on an Exceed body, I needed 138mm suspension links which happened to be from a redcat crawler.

I did start with a RTR but I quickly started hacking away at it with different parts. I enjoy building it just as much as driving it.

Jake Bullit
31st March 2016, 03:02 AM
I used to use a Taranis with my trooper.If I remember correctly I had throttle on the pitch stick because it self centred(fwd/rev esc) and steering on the rudder stick.
That was using 2.4g D4R2.

Beachflyer
31st March 2016, 08:54 AM
I have a Traxxas Summit set up with Futaba 14SG and Crossfire Tx with diversity RX.
Here here is how I have it set up.
Left stick(rudder/throttle) is used for steering only. There are 2 steering servos and I have them set in Tx both on rudder channel.
Right stick(aileron/elevator) is Foward/backward, brake, and speed control. Using (elevator) function only.
Summit has low/high speed transmission. I have that on 2 position switch SF.
Summit also has locking front and rear differentials. Unlocked/front locked/both locked. I have that on 3 position switch SE.
I have front camera pan on the left slider.
I have a 3 position camera switch(front camera, rear camera, top camera) set on 3 position switch SG.
And the all important horn on momentary switch SH.

7147271473

FPV_Enthusiast
31st March 2016, 12:50 PM
I have a Traxxas Summit set up with Futaba 14SG and Crossfire Tx with diversity RX.
Here here is how I have it set up.
Left stick(rudder/throttle) is used for steering only. There are 2 steering servos and I have them set in Tx both on rudder channel.
Right stick(aileron/elevator) is Foward/backward, brake, and speed control. Using (elevator) function only.
Summit has low/high speed transmission. I have that on 2 position switch SF.
Summit also has locking front and rear differentials. Unlocked/front locked/both locked. I have that on 3 position switch SE.
I have front camera pan on the left slider.
I have a 3 position camera switch(front camera, rear camera, top camera) set on 3 position switch SG.
And the all important horn on momentary switch SH.

7147271473


Nice!

The Summit was on my list when I was looking at ARTR off road vehicles. Although not technically a crawler it's still great off road and a lot of fun.

I like how you have the stick controller set up. I just purchased an 8 position toggle adapter to read the trainer switch on the Dx5e as a 6th channel.

FPV_Enthusiast
8th May 2016, 09:48 PM
testing out the new 3 channel video switcher.

https://www.youtube.com/watch?v=rzSveQoYz9Q

The capture device I used is horrible but just what I had laying around at the moment

slappomatt
13th May 2016, 01:28 AM
not sure of your current setup but the antenna on the back of the crawler should really be straight up and down. the antenna radiates a pattern like a donut with a hole on the top and bottom inline with the antenna stalk. angling it back like that makes it have poor signal when going away from yourself. Also surprised that you are getting the range you are with 2.4 and 1.2 do you have the IBC notch filter for using them? even with that I only got 1000' or on in the air with clean line of sight. really need UHF with 1.2

FPV_Enthusiast
13th May 2016, 03:44 AM
not sure of your current setup but the antenna on the back of the crawler should really be straight up and down. the antenna radiates a pattern like a donut with a hole on the top and bottom inline with the antenna stalk. angling it back like that makes it have poor signal when going away from yourself. Also surprised that you are getting the range you are with 2.4 and 1.2 do you have the IBC notch filter for using them? even with that I only got 1000' or on in the air with clean line of sight. really need UHF with 1.2


I have a 1.4GHz cut off filter now. It does help. Maybe get 30% more range. Yes I would say interference between 1.2 and 2.4GHZ was a limiting factor on range. With 2 watts going each way there is plenty of power so I do get far.

Yes I do realize the antenna should be up. But thanks for pointing that out. I keep flipping the crawler and squishing the poor antenna. But I've managed to mend it back in place.

Not sure how I will protect it going straight up. But either way as it is I lose control before I lose video Tx

FPV_Enthusiast
19th May 2016, 02:37 AM
Real world testing has shown me I need to have the bluebeam antenna pointed up. It works with my yagi on the roof the way it is but only because of the height of the antenna.

I also got a new Lemon Rx with the longer antennas and when pointed up away from the body (with the satellite away from the video Tx) I now get more control range than I get video range

So I'll have to experiment with ways to protect the video tx up high.


https://www.youtube.com/watch?v=5WVHSnUiaXI

FPV_Enthusiast
20th May 2016, 11:39 PM
Just having fun today. Tomorrow I will do a range test. Currently for some reason the cockpit camera's internal flash memory isn't working right so I'm unable to obtain the onboard HD recording.


https://www.youtube.com/watch?v=fJkktJENMIU&

FPV_Enthusiast
26th May 2016, 12:36 AM
Started to go far yesterday and lost place as to where the crawler was. Flipped it and Had to go searching for it. I ordered a Tarot OSD so I will have GPS heading Voltage and distance/direction from home. I'm thinking maybe some sort of alarm is needed in case I get to the area and can't find him. I usually have to spin the motors to hear it to actually find the thing when I do lose it.

Looks like as long as I have line of sight I can traverse the whole valley.

https://www.youtube.com/watch?v=dfPogljdgFM