Project: YellowJacket A co-worker introduced me to this hobby a few months back. I have absolutely no experience with crawlers and very little experience with RC vehicles in general. This will be a pretty basic kit build with some commonly used modifications, nothing fancy or truly original. Futaba 3PM-X Tekin FXR ESC Tekin T35 Pro Handwound HiTec HS-7955TG (steer) HiTec HS-5645MG (Dig) RC4WD Aluminum Axle Front/Rear (Black) RC4WD Aluminum Axle Truss (silver) Ballistic Fabrications Aluminum Diff Covers RC4WD Resistance 2.2 internal beadlocks HR Aluminum Diff Cases HR Aluminum Bottom Shock Mounts HR Hard Steel Transmission Gears Axial HD Ring and Pinion gears Axial Aluminum Steering Knuckles Axial Tube High Clearance Links Axial Aluminum competition (heh-heh) Shocks Axial DIG Upgrade set CKRC Suspension Lowering Kit CKRC Hood hinge kit CKRC 32p Spur/Pinion gears MIP Spline Center CVDs Integy Alloy Steering Linkage As you can see by my list, I have no idea what I'm doing. |
Re: Project: YellowJacket Lets see if we have everything: Kit... http://i211.photobucket.com/albums/b...hBuild/046.jpg Check. Guts... http://i211.photobucket.com/albums/b...hBuild/045.jpg Check. Upgrades... http://i211.photobucket.com/albums/b...hBuild/044.jpg Check. Guess the thing isn't going to build itself, lets get on with it. |
Re: Project: YellowJacket http://i211.photobucket.com/albums/b...hBuild/047.jpg Here you can see a comparison between the stock ring and pinion and the Axial HD spiral cut gears. I wanted to do a OD/UD setup but I could never get a straight answer from distributors as to whether the Axial HD spiral cut gears had the updated drilled pinion shafts so I just ordered two sets of HD Ring and Pinions AX30395 in the stock ratio (38T/13T) and hoped that they were drilled. http://i211.photobucket.com/albums/b...hBuild/048.jpg http://i211.photobucket.com/albums/b...hBuild/049.jpg The only stock components in these assemblies are the axle shafts, bearings, lockers, and the spacing gasket; and yes, I greased the gears before putting on those spooky diff covers. I'm using "Green Grease" from AutoZone |
Re: Project: YellowJacket Shocks...yeah...I'll keep it short http://i211.photobucket.com/albums/b...hBuild/050.jpg http://i211.photobucket.com/albums/b...hBuild/051.jpg I'm Going to run 80wt shock oil in the rear and 30wt in the front. Do I really need to? You're asking the wrong guy, I'm just making this stuff up as I go along. BTW do you like my work bench? I'll have you know, that is 100% genuine cardboard...imported...from my garage. |
Re: Project: YellowJacket Links and Shafts http://i211.photobucket.com/albums/b...hBuild/052.jpg As you can see (I didn't at the time) the upper links are awful short. The aluminum tubes are the correct length but the link ends are the smallest ones in the kit. There are longer link ends on the parts tree but they are straight instead of angled, I may be forced to use the stock plastic upper links until i can get the right size ends ordered. http://i211.photobucket.com/albums/b...hBuild/053.jpg http://i211.photobucket.com/albums/b...hBuild/054.jpg servo and linkage installed |
Re: Project: YellowJacket Transmission http://i211.photobucket.com/albums/b...hBuild/057.jpg Upgraded to steel gears and going from 48p spur and pinion to a 32p setup. The spur gear is larger than stock and will require some modification to the cover (Dremmel to the rescue) I have a feeling that the nine tooth pinion is going to be to small, the drive ratio is going to be (pardon my math, I was in the Marines) 6.6:1, quite a bit longer than the stock 4:1. Won't really know until I run it, can always get a larger pinion. http://i211.photobucket.com/albums/b...hBuild/058.jpg http://i211.photobucket.com/albums/b...hBuild/059.jpg http://i211.photobucket.com/albums/b...hBuild/060.jpg Tekin 35T Pro handwound http://i211.photobucket.com/albums/b...hBuild/061.jpg http://i211.photobucket.com/albums/b...hBuild/064.jpg DIG installed, transmission mounted on skidplate http://i211.photobucket.com/albums/b...hBuild/066.jpg http://i211.photobucket.com/albums/b...hBuild/068.jpg http://i211.photobucket.com/albums/b...hBuild/067.jpg Everything married together. In the above photo you can see that I'm using the straight link ends. They fit, but these will only be a temporary band-aid until my angled link ends arrive. Also, it's nice to finally see the ceramic saki cups that i got in Okinawa put to good use. “Kam-pai!” |
Re: Project: YellowJacket doesn't look like a noob build. Looks like your off to a good start."thumbsup" |
Re: Project: YellowJacket Great start BTW!!!! You dumped a ton of money into this, Unless you whored yourself out. That will be my next step for sure. My question is on that 9T pinion, Its a little tall for a rig like that.... Even on my Comp rigs I use a 12 to 14T pinion. that's just my .02 But it is really lookin good. Keep up the good work Devil Dog. |
Re: Project: YellowJacket Thanks for the comments! Thankfully, there is a resource like the rccrawler.com, I must have read every Wraith build thread there was before I attempted my own. Lots of great ideas and advice, I really wanted to do this build right the first time. Quote:
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Re: Project: YellowJacket Starting to construct the chassis. I'm going to go ahead and put most of the cage together, body and interior will come later. I want to use this opportunity to mock out the electronics placement and from other threads it appears that the hood will have to be cut to fit the new upper shock mounts. It will be easier to mark those cuts with the lexan still clear. http://i211.photobucket.com/albums/b...hBuild/070.jpg I had read in other threads that the CKRC lowering kit had fit issues http://i211.photobucket.com/albums/b...hBuild/071.jpg used a Dremmel to file the upper part of the passthrough hole on both front mounts and also ground out the spur cover to fit the larger spur gear. http://i211.photobucket.com/albums/b...hBuild/072.jpg Here we see the rear shock mount bracket. I know that a lot of people are flipping the rear shock mount to get the rear end lower. I won't be doing that, I figure that with the adjustable lowering kit and the inverted lower link mounts on the axles (forgot to point that out in the earlier post) I'll have a low enough COG. I also reinforced the rear mount with a 55mm stand-off (Axial AXA1428 ) this is probably overkill, but figured it couldn't hurt. http://i211.photobucket.com/albums/b...hBuild/073.jpg http://i211.photobucket.com/albums/b...hBuild/074.jpg http://i211.photobucket.com/albums/b...hBuild/076.jpg |
Re: Project: YellowJacket Mounted the body to the skid plate http://i211.photobucket.com/albums/b...hBuild/077.jpg http://i211.photobucket.com/albums/b...hBuild/078.jpg this should give me a good idea how I want to run the electronics. Starting with the essential Wraith mod: battery forward. I'll be using a cut-down battery tray rather than the CKRC plate. http://i211.photobucket.com/albums/b...hBuild/079.jpg http://i211.photobucket.com/albums/b...hBuild/080.jpg Dremmel got a workout today http://i211.photobucket.com/albums/b...hBuild/081.jpg http://i211.photobucket.com/albums/b...hBuild/082.jpg Like a freakin glove http://i211.photobucket.com/albums/b...hBuild/083.jpg Here's what I have in mind for the rear compartment. That is just a cardstock mock-up, the real one will be either aluminum or styrene. http://i211.photobucket.com/albums/b...hBuild/084.jpg looks like I'm going to need a servo extension |
Re: Project: YellowJacket i ran a 62/10 with my 35 turn and it was perfect. your gearing also depends on the weight. if its a lite rig you can gear it a bit higher, if its heavy you will be happier with a smaller 9 or 10 tooth pinion. my guess is with all of theat aluminum you'll end up pretty heavy, so i think you made a good choice with the gearing. |
Re: Project: YellowJacket Damn! Nice stack of parts! "thumbsup" Quote:
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Re: Project: YellowJacket I just completed my battery forward mod last night. I did basically the same thing as you except I left my electronics block in the stock location and just moved the esc to the rear. This config fits without having to change any wiring. I attached my chopped up battery tray using one screw on the tab just below the electronics. I also mounted it 180° different than yours with the opening facing the front. I got my aluminum rear tray from Carter Fab. That's where I mounted the esc using a single hood pin. I have pictures and will post them pretty soon... Good luck! Looking great so far!"thumbsup" Quote:
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Re: Project: YellowJacket Not a lot done today, pics of today's progress to follow. To answer some of your comments and questions: trialbuyfire wrote: Quote:
red_13 asked: Quote:
HRDROKN said: Quote:
If you all want to see some no holds barred, seat of the pants fabricating; check out HRDROKN's Venom Creeper build. |
Re: Project: YellowJacket Electronics and rear compartment http://i211.photobucket.com/albums/b...hBuild/002.jpg From dream to reality. I used a sheet of 1.5mm styrene, would have preferred aluminum but I don't have the tools or skill to attempt it (I'm using my wife's desk and some cardboard as a workbench for crying out loud!) styrene is a little more noob friendly. Why doesn't Dremel (look I actually spelled it right this time) make a dedicated counter-sink bit? http://i211.photobucket.com/albums/b...hBuild/003.jpg Control wires laid in. Those Tekin FXR ESC's are HUGE!!! (Oh...and kids...don't smoke.) http://i211.photobucket.com/albums/b...hBuild/005.jpg Measured out the wiring harness. I was originally going to use 4mm bullet connectors between the ESC and motor, but they seemed too large for the 14ga wire that I'm using. Shouldn't be much issue with using a set of Dean's plugs instead, should there? http://i211.photobucket.com/albums/b...hBuild/006.jpg completed wiring harness. OK boys and girls, if there is one piece of wisdom I can share with my fellow builders out there, it's this: Do Not Go Cheap on a Soldering Iron!!! I found out the hard way that a cheapo RadioShack soldering iron will not do for this kind of work. I know I'm preaching to the choir here, but get yourself a quality Iron. One that is solidly constructed, has adjustable power, preferably with a narrow "chisel" style tip. Lesson learned...moving on. http://i211.photobucket.com/albums/b...hBuild/007.jpg http://i211.photobucket.com/albums/b...hBuild/008.jpg Power cables laid in. Tried as best I could to route power cables down one side and control cables down the other to minimize cross-talk (that is a thing right?) |
Re: Project: YellowJacket Too funny! I too am using my wife's desk with cardboard on it to work on my Wraith! You're work is looking really good! I love the detailed pics and cleanliness! This is a very well organized build, so it's easy to follow. Thanks also for the soldering iron tip. Care to share specifics like what iron you like and in your experience what price range are we talking about for a "good" soldering iron? Quote:
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Re: Project: YellowJacket Perfect, thank you! That helps a ton. I've been struggling with my cheapo soldering iron and this confirms the fact that having the right tool for the job is essential to success! I am in the process of changing all my batteries and RCs to Deans. With 3 cars, a helicopter, a tank and about a dozen batteries I've got a bunch of soldering to do... Quote:
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