EP Savage X build - RC-Monster Forums

Joey · 03.18.2009, 06:51 PM

I got the front CD mount braced in, and Im really happy with how its turning out. The spur gear will hang out the underside of the chassis a bit, but I can make a skid plate to protect it. Before you ask, yeah I know the plastic piece is crooked, it had to be that way to get the screws how I wanted them. There is JUST enough clearance between the cd cups and the braces to be comfortable. Cant wait to get the last 2 braces and finish this up.

BL_RV0 · 03.18.2009, 08:52 PM

Looking good. How much have you spent to date?

Joey · 03.18.2009, 09:38 PM

Close to $200.... I anticipate total cost (everything but motor/esc) to be around $230 or so.

Joey · 03.27.2009, 01:02 PM

Well I hit the jackpot today. First off the last parts I ordered are in and I think I pretty much have everything now. Driveshafts/dogbones, axle cups, and 17mm hexs came today.

Now, I live on campus at Georgia Tech. I am a senior and next semester I will be in senior design class and have access to this amazing workshop and lab full of goodies. I know they have anything and everything a geek could want for any kind of project, so I stopped by today to see if I could get some scrap metal for a motor plate. I went up to the lab coordinator and before I could even finish saying "Hi, is there any scrap metal I could have for..." he said "Yep top drawer in the blue cabinet." Well much to my delight I open the top drawer labeled "aluminum/copper" and find a JACKPOT of scrap metal. I obviously found the perfect sheet to use for a motor plate, and he said that since Im an electrical engineering senior I have full access to the lab equipment AND power tools any time I want. Were talking a lab and workshop that takes up 3 classroom sized rooms. I nearly shit my pants! He said hed show me how to use the tools when I need them and Im good to go. So it looks like when I have time Ill be going over to cut up the aluminum I got and have myself a motor plate!

This lab is so amazing... cabinets full of electronics, tools, scrap material... Spools and spools of bare, insulated, and magnet wire... Cabinets full of batteries, speakers, test equipment... Power tools galore... Lab stations with all the goodies (magnifying lamps, oscilloscopes, soldering station...) Im really looking forward to next semester now!

While I was there, a student was working on a RC vehicle that had a sheet of lexan bolted across the chassis (no body was in it). On the lexan was all kinds of electronics - microprocessors, data ports, FPGAs....I started asking him about it and it turns out its a Tamiya Hummer model, looked to be something like 1/12 scale. Dont know exactly what it did as I didnt have much time to talk, but it looked awesome!

Anyway, sorry for the huge digression, just thought Id share. I hope to have this build pretty much finished within the next 10 days or so.

Joey · 03.27.2009, 01:03 PM

The center is now COMPLETELY finished! I worked for 5 hours in the senior design workshop to get it done.. painstaking measurements paid off, everything fit pretty much perfectly on the first test fit! YAY! I just threw on an esav motor to see how it looked. Since I cant spend any more money I may just run it with the single brushed motor geared way down until the 2 of them burn out just for fun heh... Here are some pics, the drill press I had to use pretty much sucked, so the cuts arent exactly pretty...

Joey · 03.27.2009, 01:03 PM

Joey · 03.27.2009, 01:06 PM

Hmm, seems like the smallest pinion Im going to be able to use is probably a 17T due to the screws that are just underneath the motor... Cant bring the motor down far enough to use any smaller pinions. Hadnt forseen that when I made the motor mount... Right now I can get a good mesh with an 18t pinion on the brushed motor, with a brushless I think I could get 17t because they have no flux ring on the can and that will give me another millimeter or so to drop the motor.