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-   -   Viper RC - (https://www.rctech.net/forum/radio-electronics/455152-viper-rc.html)

Bob Barry 02-09-2013 04:10 PM


Originally Posted by JJay03 (Post 11794662)
Alright 1 more time lol. It appears to have a shiny look to it now. Hope this is up to viper standards. I could use a better iron also im just using a weller 80watt non adjustable. Thanks for the help
http://i99.photobucket.com/albums/l2...10/SC10076.jpg

looks good. And my iron is an 80 watt weller that I bought in 2003 ;)

JJay03 02-09-2013 04:21 PM

Only prob with it is that the tip is 3/8 wide. I tried the 1/4" tip and it did not work very good.

zipperfoot 02-09-2013 08:32 PM

***

Wildcat1971 02-09-2013 08:53 PM

Zipper, you pull the trigger on a viper yet?

dbracn 02-09-2013 09:57 PM

Team,
Could anyone recommend boost settings for a 10.5? I usually run a 7.5 on our high bite clay layout but the new layout is more technical and i have no use for the 7.5 besides going faster towards breaking parts. When i ran tekin, i used boost with a 10.5 but is there boost on the viper? Is it motor power?

Thanks,

nikos2002 02-09-2013 10:14 PM

start with gearing down a few teeth. put the esc in race open mode. add some acceleration and top speed timing, start low to start with 15º each, slew rate low as well maybe 3. Start rpm around 6000, finish around 19800. test it out, see where you want more adjustment - bottom end, maybe top. Every driver likes it a little different, so you are going to have to test a little to see. As always keep an eye on temps to be sure (both motor and esc).

nikos2002 02-09-2013 10:18 PM


Originally Posted by rcq (Post 11794122)
Hello
Need quick help for 17.5T and vtx-10R. I miss top speed. Now I am running it in Team-c tm2 buggy gears 26/85, esc profile 5 and have 170-180 F on motor. I have good grip on track. Can somebody help with VTX-10R setup and what timing on motor should I use? By the way ESC on Blinking mode.

Thanks

Is the gearbox ratio for the TM2 the same as the regular buggy? Is yes, your spur is way to big. timing on the motor itself in blinky mode can be all the way up to 45º. My guess without knowing the ration of the gearbox is that your under geared. I know that car has a different gearbox set up so it may be a bit different.

nikos2002 02-09-2013 10:20 PM


Originally Posted by Kane-o (Post 11793922)
I just put a Viper in my Tekno for the DNC. Hopefully it fairs better than the pics above. I thought servo horn too. My speedo is rotated 90 degrees CCW from your position.

Best of luck. Viper.....please keep us posted regarding possible causes. The product looks solid but it doesn't seem like there is a lot of support for this speedo yet (team driver's setups, etc).

-Kane

I traded some information with Chris, we will see when we get it back. Haven't seen one go up like that in 8 months of testing, so we will have to see. Pretty rare for one of ours to go like that. But if you going to go - a blaze of glory is the way!!!!

All-Star 02-10-2013 12:38 AM


Originally Posted by nikos2002 (Post 11779846)
The VTX1 has the added function of running on a 1s battery. Its slightly lighter than the VTX10 series. Runs on the same exact software, as all of the other VTX's.

As for the BECs they are really quite similar. Just wired different - so you have mounting options. Some don't mind external caps and others like the way the package fits in a car.

I had this same question about choosing between the VTX1 and VTX10 black series as well. Sounds like the VTX1 has the advantage in being lighter then? I like how the caps are mounted on the speedo for a cleaner look. If there is not really any difference in BECs, then would the VTX1 be suitable for my SC10 2wd? Is the only main difference the way the external caps are wired?

Foosmatrix 02-10-2013 10:13 AM

I was adjusting a few things on my VTX8 through the pro gauge and while in the BEC menu I noticed that the pro gauge allows you to adjust it up to 8.0v. Now everything I've read about the VTX8 says it has an adjustable BEC up to 7.0v. Anyone have any insight on this ? Is it safe for the ESC to run the BEC at 8.0v ? (I run KO RSx power servo)

macke 02-10-2013 01:56 PM


Originally Posted by Bob Barry (Post 11793796)
Redo B. See how it's dull compared to the other two? That's a cold solder joint compared to a hot joint. Definitely looks like you are getting the hang of it though.

Now when you 'redo' it, make sure you remove the wire, then remove as much of the built up solder from the tab and the wire as you can and start over. Re tin it and you should be good to go. Remember to keep the tip of the iron clean and let it heat back up each time after you clean it.


Originally Posted by JJay03 (Post 11794662)
Alright 1 more time lol. It appears to have a shiny look to it now. Hope this is up to viper standards. I could use a better iron also im just using a weller 80watt non adjustable. Thanks for the help
http://i99.photobucket.com/albums/l2...10/SC10076.jpg


Originally Posted by Bob Barry (Post 11794907)
looks good. And my iron is an 80 watt weller that I bought in 2003 ;)

Now it looks much better but I think you are using too much solder on the U-tabs. I would leave it for now but if you are going to remove the motor cables in the future for some reason I would use a desoldering pump to get rid of some of the excess.

And for the soldering iron. Weller makes really good soldering irons. In fact, I ordered a Weller W101 with an optional 3.2mm tip earlier today :) Not cheap but I guess you get what you pay for...

JJay03 02-10-2013 04:03 PM

Thanks for the tip I got some soldering wick that would clean it up if I ever need to resolder.

DaveG28 02-11-2013 12:58 AM

Hi guys,

For those of you who've run the vtx8, have anyone had to use extra capacitors or an external bec to prevent brownout?

macke 02-11-2013 03:57 AM


Originally Posted by Krafcik (Post 11794397)
Here are the pictures of the same exact setup in my Tekno SCT410. Of course, they are the exact same chassis so the distance on the servo horn to the wires is the same distance. Clearly the servo horn was no where near the wires.

http://i953.photobucket.com/albums/a...pseb3b462e.jpg

I don't know how the Tekno SCT410 is designed but I would suspect there was a spring loaded servo saver mechanism in the right steering post. If the servo saver was trigger it is more than likely the servo the arm would hit the soldering posts/wires.

symmetricon 02-11-2013 04:43 AM


Originally Posted by macke (Post 11800499)
I don't know how the Tekno SCT410 is designed but I would suspect there was a spring loaded servo saver mechanism in the right steering post. If the servo saver was trigger it is more than likely the servo the arm would hit the soldering posts/wires.

The servo saver arm sits at least 15 mm above any solder posts.... he used a HB or serpent arm which sites much higher than a standard servo arm... I saw his car, and I think it was a case of bad luck.


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