![]() |
Quote:
|
Well I disconnected my CC BEC today from the MMM and ran it for 20 minutes of speed runs up and down the street and the MMM is still alive. Still have the fan in there with the broken blades and the ESC was around 95F after 20 minutes. The fan still blows some air however. Had to stop after 20 minutes to get ready for night shift :sleep:
|
I put a bec on my 5th MMM (3rd v2) and it works perfectly. I would keep it on there until we know the problems are sorted.
|
Quote:
|
20-25 bucks registered but not express. express was closer to 35 if i remember correctly (for a MM)
|
Drift_Buggy did the mount you have your MMM on come with the kit? Any problems with clearance when the body it on? I need to come up with something different for my 8ight. The body sits right on top of the fan I have on my mm. From the first picture in your thread it doesn't look to have too much of a bend more like an angle down towards the chassis. Is that right? Thanks.
|
Quote:
|
Quote:
|
Quote:
|
Thanks. I have a friend that owns a sign shop. He gives me the scrap lexan leftovers. I tried to make one similar to the one you have. The first attempt didn't get the esc low enough. The second one got the job done. I'm working on a battery tray made from lexan. Using the toarch to bend it into shape. First couple looked like something you'd bring home from 1st grade made out of clay. Is it an ashtray or a coin holder? Thanks for the build thread. I've looked it over a lot since I started thinking buggy. It's helped a lot.
http://i212.photobucket.com/albums/c...s/DSCF6494.jpg |
Nice work, looks pretty neat
|
Done a few changes to the buggy. Now running a Airtronics MX3 2.4ghz and throttle response is so much better with 2.4ghz. Have also changed the diff fluid from 5/10/3 to 7/10/3 and changed the MMM settings to 70% Punch Control. It seems to accelerate faster but I think that it is due to the diff fluid as I changed the MMM settings 1st and didn't notice much but after changing the diff fluid it ran better. Have now updated the MMM software to 1.2 and removed the Ext. BEC but haven't taken it for a good run yet
|
Got to finally take my buggy for a run but only in the street and the backyard. Didn't get a chance to take it to the track. It's nice not having a Ext. BEC, alot less wires. The MMM ran great with the new software. No issues at all. Only got a chance to ran it for about 1 hour until i got hungry and had to go get a pizza. The MMM temp was 120F and that is with a fan with only 3 blades.
I managed to get a set of 4 Losi Yellow Wheels and Step Pin tires for $15US off ebay which is nice as my current tires don't have much tread left. |
|
|
Nice mate , good to see the MMM is running cool with the new firmware and no external bec .
|
Well got pizza for lunch and went and did some more jumping/running in the backyard and after about 2 hours of more running disaster struck :cry: .............. I hit a jump wrong which sent the buggy flipping towards my son (21 months) who was playing in little sand pit and the buggy struck him in the head and split his head open. So trip to the hospital for the poor little guy. He was ok, but lost alot of blood.
The MMM is still going strong though, it seems to have more punch and better throttle response with the new firmware. |
more punch- how about RIDICULIOUS PUNCH. 100% seems to do nothing...
i can wheelie with 100%. struggled with 0 before. (V2 BTW) good to know everythings good. pitty about your son! hope he gets better! |
My son is fine. When I running around the yard and I flip over, he gets real angry with me if I go and flip the buggy back over as he wants to do it. He always comes with me to the track and stands in pit lane watching me.
|
Well got to go down to the track today for the first time in about 2 months. First time I have been to the track running a different setup (shocks changed, diff fluid now 7/10/3) but I ended up taking my old bold tires down to the track. I got 35 minutes out of the first battery before LVC kicked in (16.4V) and highest recording temp for the 1st run was Motor - 170F, Battery 120F and ESC was 135F. ESC was running 135F as I didn't realise that a twig got jammed in the fan and the fan was working. Took the twig out and fan starting going again. ESC temp went down to 125F once fan started working. It was hard to say if the setup was great as bold tires didn't help but even with the bold tires, it seemed to handle pretty good.
I let everything cool down and then went out for another run. Temps got a little hotter this time, Motor - 180F, Battery - 120F and ESC - 130F but that might be becuase it was now the middle of the day and was a pretty hot day. Bold tires also don't help. After 35 minutes I noticed that one of the tires was unglued but I thought that the battery would ran out soon so I kept on going. Flat out down the back straight lost control and hit the wall pretty hard and ended up stripping the thread that the screw goes into hold down the turnbuckle on the spindle. Didn't matter, didn't ruin my day as that was probably the most fun I have had with a R/C. Castle has done a excellent job with this new firmware. No issues at all and it doesn't look like stopping at all. So nice to not have a ext. bec. on anymore. |
good to know that im not the only one with a hot motor (170+F). although im getting 160+ after only 6 minutes. in the mains though it doesnt seem to get past 175 before stablising. mind you, it was a 35C day in the shade!!
|
Got to go to the track again today. I put some new Losi Step Pins on, what a difference it makes having tread, doesn't feel like you driving on ice.
1st battery went good, got 37 minutes on it before LVC kicked in. Temps were; Motor - 175F, ESC - 130F & Battery - 130F. I let it cool down and then ran the next battery. After 22 minutes I bought the buggy into the pits to check the temps and the motor was 195F :oh: (ESC 135F and Batter 120F) It was another hot day but I have never cleaned the motor/bearings. So ill clean and check over the motor and hopefully get another run tommorrow. |
jeez, and your in sydney! im screwed in brizzy running a hotter motor, smooth can, heavier car and ambient temps cracking 40 regularly in summer!!!
hope you get it under control, sounds like alot of fun though! |
Quote:
|
Quote:
|
Quote:
|
Quote:
Are you going to try the AKA tires out , you won't go back to any other brand . |
Quote:
Here is a shot of my current MMM settings. I only recently changed the punch control from 50% to 70%. http://i34.tinypic.com/28018w1.jpg I won a set of 4 premounted Losi Step Pin Tires (off new Losi 8ight) off ebay america for $15US. Currently using them which is better than nothing. I will try out the AKA City Blocks for sure. Haven't had to luck in Australia but most of my orders I do from Amain or Impakt anyway. |
Well put the 14T pinion in and after 15 minutes the temps of the ESC was 140F and the motor 185F. I then set the punch control back to 50% and put the 13t pinion back in and after another 15 minutes which is when the lvc kicked in the temps were 130F for the esc and 175F on the motor. I'll hopefully get a chance to run another battery and check the temps again. Surely the thicker diff fluids aren't making the motor run hotter. I only went 2000wt thicker in the front and 1000wt thicker in the rear
|
Quote:
It's getting hotter in Melbourne and was 28 today my temps went up about 10 degrees across the board from last run but all well within acceptable temps . I run medium timing on my Medusa as i was told by others and Medusa recommends medium timing on 4 pole motors so maybe you can try that. Check your bearings in the motor as well and your whole driveline as something could be binding . With AKA couldn't find any in OZ either ,A Main is the best bet or Imapkt ( i do most of my business with them as well )or try ebay for a bargain . Kyosho MP9 comes standard with medium compound City Blocks so look for one that is being parted , there a few at the moment :wink: |
Quote:
I clean my bearings yesterday and put oil on them. Might check out the drivetrain but all seems fine. Might purchase a 12T and see what happens then. 13T (what I am not running) seems just right though (41mph) Know of any where in Australia that sell Mod 1 pinions? |
Sorry , wish i did .
I have bought all mine from Mike RCM or at Impakt for Robinson pinions . I have from 14t - 21t but destroyed my RCM 15t last week . |
Ended up ordering a 12T and a 11T. Can never have to many size pinions. Tekno are bringing out their 1512 Size Motors next week, depending on what they are like I might look at going down to the 1850KV motor
|
All I know is my medusa v2 60mm 2000kv is PERFECT in this 8t tekno v3 buggy.. runs good on 4s and is a beast on 5s, 6s is crazy.. motor temps are never over 130, 150max during summer after like 3 hours of non-stop running.
|
Checked through my drivetrain and seems to be alright. I did notice that the front centre cvd shaft is rubbing on the steering servo mount but it pretty much always has. I did also remove the plastic front diff mount bearing adaptor and now running the optional aluminum apator but can't see how that could do anything bad. What happens if you add to much diff fluid to the diffs.
|
Well I think I worked out why the centre cvd shaft hits the servo mount. Because of the 46T Spur and the RCPD rear diff mount, the front diff mount has to run spacers to sit level which makes the shaft sit higher which causes it to hit the servo mount. I'll just use a dremel and cut it off to it no longer hits and test the buggy out tomorrow to see if it helps any
|
Here is some more photos I finally uploaded onto the computer
http://i110.photobucket.com/albums/n...T/IMG_4280.jpg http://i110.photobucket.com/albums/n...T/IMG_4298.jpg http://i110.photobucket.com/albums/n...T/IMG_4315.jpg http://i110.photobucket.com/albums/n...T/IMG_4231.jpg http://i110.photobucket.com/albums/n...T/IMG_4223.jpg http://i110.photobucket.com/albums/n...T/IMG_4293.jpg http://i110.photobucket.com/albums/n...T/IMG_4311.jpg |
Great photos. Looks like he is having fun.
|
The question is, who had more fun? Dad or son?
|
| All times are GMT -4. The time now is 09:18 PM. |
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.