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Re: Team Car Runner build (Carbon Fiber braces machined/moun

Posted: Tue Jun 15, 2010 9:18 am
by m_vice
markt311 wrote:Any chance you could make some rear arms that are 1/8th" to 3/16" longer than the stock arms? That would help me out a ton!
These are 1/8th" longer that the standard RPM world's arms or the dynotech arms. :wink: , they work with B4 CVD's.
:D

Re: Team Car Runner build (Machining new TI Turnbuckles)

Posted: Sun Jun 27, 2010 11:13 pm
by Seabass
Got most of the car done. I finished the steering assembly, finished up a way to secure the lipo batteries in the car. I have my B4 CVDs, bearings, and a servo on order. Those are the last peices needed to finish the car.

I have the RCPS??? turnbuckles on the the car and I am not very happy with them. I ordered some TI a few weeks ago with intentions on machining some turnbuckles but that stuff is a bit harder to machine than what I an used to.

I finally took the time to figure out how to machine the TI and below is the result. I still need to make 5 more of these and I will be set. I hope to have several finished pitures very soon :D .

Jake

Image
Image

Re: Team Car Runner build (Machining new TI Turnbuckles)

Posted: Mon Jun 28, 2010 12:23 am
by m_vice
:shock: They look really cool man, love it. You are making some good stuff and this is one of those parts that i have not seen a lot of people tackle, specially in TI.

The car is looking great. :D

Re: Team Car Runner build (Machining new TI Turnbuckles)

Posted: Mon Jun 28, 2010 12:35 am
by Seabass
Thanks Miguel.

Beleive it or not, threading the TI was easier than working with aluminum. Turning the TI is difficult because the small diameter rod deflets from the tool. I have to choke up on the rod to keep it from delfecting from the tool.

I have not figured out how to use the lathe dog on my lathe so I have to do it the hard way. They still turn out fantastic.

Jake

Re: Team Car Runner build (Machining new TI Turnbuckles)

Posted: Mon Jun 28, 2010 8:26 am
by jwscab
is that grade 5 Ti? nice job! I finally got my lathe bench, I can really start moving on getting it done!

the whole car is fantastic, great job!

Re: Team Car Runner build (Machining new TI Turnbuckles)

Posted: Mon Jun 28, 2010 9:00 am
by Ruffy
Awesome job as usual bigjeepz!

Re: Team Car Runner build (Machining new TI Turnbuckles)

Posted: Mon Jun 28, 2010 10:20 am
by Seabass
Thanks, it is grade 2 TI. I ordered it instead of grade 5. I figure might as well use it for something. Later down the road I will order some grade 5. I am not sure how much of a difference it will make but I will see once the car is running.

Jake

Re: Team Car Runner build (Machining new TI Turnbuckles)

Posted: Mon Jun 28, 2010 10:27 am
by mikedealer
jake looks awesome! love the ones on the javelin u made for me, and these are awesome too!

Re: Team Car Runner build (Machining new TI Turnbuckles)

Posted: Mon Jun 28, 2010 10:36 am
by jwscab
well, grade 2 is commerically pure Ti, and about as strong as T6 aluminum. The grade 5 is 6Al4V alloy, the common Titanium you see that is used to make all the high performance stuff. I beleive it's a bit tougher to machine, but obviously it's done everyday. It might actually be easier becuase the material may not try and deflect as much while machining, since it's stronger. just check into the right tool bit for the job, HSS will probably work, but carbide might be preferred....not sure.

if you have a tailstock with a chuck set-up, you might be able to machine a small tail on the end of the shaft that can be chucked to support it while you machine, then part it off after the threads are cut. obviously, you've gotten it to work, just throwing out a suggestion......

Re: Team Car Runner build (Machining new TI Turnbuckles)

Posted: Mon Jun 28, 2010 7:10 pm
by Seabass
I am going to pick up some grade 5 soon, but I need to use up the three ft of Grade 2 I already have.

I hear you on the tailstock but I don't have a live center for my tailstock. I need to buy one so I can make life a bit easier. I am going to make a few extras to throw in my box in the event I do bend or break one. I am using carbide tools to cut the material. I have read HSS will cut TI but will dull the tool very quickly.

I saw the thread about your lathe. Post up some pics man, I love seeing what others have.

Thanks for the tips on the metals. I do appreciate it.

Mike, those TI turnbuckles are pretty much the same os the ones I did for you.

Jake

Re: Team Car Runner build (Machining new TI Turnbuckles)

Posted: Mon Jun 28, 2010 8:15 pm
by vintage AE
amazing job! I really like all the personal touches you are adding to it. I would make a custom carbon fiber battery strap to match the chassis braces. The plane battery cup in the middle of custom car just stands out.

Re: Team Car Runner build (Machining new TI Turnbuckles)

Posted: Mon Jun 28, 2010 8:51 pm
by jwscab
yeah, i already mentioned to build a battery brace like I did.

if you want any info, dimensions, or parts for that, let me know.....

what kind of lathe do you have? do you know what size the tailstock is? littlemachineshop and micromark have dirt cheap machine tools, a live center is less than 20 bucks.

Re: Team Car Runner build (Machining new TI Turnbuckles)

Posted: Mon Jun 28, 2010 8:57 pm
by vintage AE
yeah, you should do something with the battery strap if I were you. I don't have anything to machine anything, just saying that if I were you I wouldn't use the stock one.

Re: Team Car Runner build (Machining new TI Turnbuckles)

Posted: Mon Jun 28, 2010 9:02 pm
by Seabass
vintage AE wrote:amazing job! I really like all the personal touches you are adding to it. I would make a custom carbon fiber battery strap to match the chassis braces. The plane battery cup in the middle of custom car just stands out.
The battery strap has already been done. I was going to make one out of CF but for the time being I went with some Nylon 6/6. I don't have enoguh CF to make a cool looking strap so that will have to wait.

I am running a Seig 7x12. I have bought alot of stuff from both of those places. I have also found another place online http://www.victornet.com/

They have really good customer service and prices are comparable to many others. They have a great selection of tooling.

Re: Team Car Runner build (Machining new TI Turnbuckles)

Posted: Mon Jun 28, 2010 10:28 pm
by jwscab
wow, thanks for the link, nice place.....

I've got an atlas 6" I'm in the middle of restoring. it was in a flood so i need to change the headstock bearings, some general cleanup, some new tooling, and I can start turning some metal. I've got a 12" one too that needs a ton of restoration, plus it's still in my grandfather old house, I've got to go retrieve it soon....that one is good for make 1:1 size parts, which will come in handy.