Speed Calculator

[_paralyzed_]

I don't know how you'd do it but a provision for shafts like the LST center shaft that have a CVD on one end would be nice.

Maybe the length from pin to grub screw and the size of shaft the CVD fits on? (8mm for LST)

[whitrzac]

would it be posible to start a "master spring chart" that includes EVERY spring made???

it would take a looong time, but once its done it would save loads of time


just to make it easyer on you, I think RCM users should be able to make changes/add springs without emailing you the specs

organize by TC size, 1/10 truck/buggy, 1/8 buggy, and 1/8 truggy, and oddball(revo, etc)

needed specs for springs

lb/in and metric
lenght IN and MM
brand
diamiter

[lutach]

Brian,

How are you? I sent you an e-mail (To your hotmail address listed) about something cool that would be great for everyone.

Do you know how much HP per ton your little R/Cs make?

My BPP truggy made over 600HP per ton. While my Mr. C MBX5T has made over 1200HP per ton. Isn't breaking the 1000HP per ton a great achievement in the auto industry? Does this mean our little R/Cs (Many still consider them toys) are more efficient and advanced then the 1:1 available.

Regards,

Luciano.

[BrianG]

Originally Posted by whitrzac

would it be posible to start a "master spring chart" that includes EVERY spring made???

it would take a looong time, but once its done it would save loads of time


just to make it easyer on you, I think RCM users should be able to make changes/add springs without emailing you the specs

organize by TC size, 1/10 truck/buggy, 1/8 buggy, and 1/8 truggy, and oddball(revo, etc)

needed specs for springs

lb/in and metric
lenght IN and MM
brand
diamiter

I suppose that could be done. As you said, there would be a LOT of additions. If there is enough demand, I can do it.

Emailing/posting the values is the only way for the data to get input into the calc because the whole calc is client-driven via jscript arrays. This is mostly so I can develop "offline" and people can download and use it without internet access. Having people add the values would require server-side code and would make it a whole lot more complex.

Originally Posted by lutach

Brian,

How are you? I sent you an e-mail (To your hotmail address listed) about something cool that would be great for everyone.

Do you know how much HP per ton your little R/Cs make?

My BPP truggy made over 600HP per ton. While my Mr. C MBX5T has made over 1200HP per ton. Isn't breaking the 1000HP per ton a great achievement in the auto industry? Does this mean our little R/Cs (Many still consider them toys) are more efficient and advanced then the 1:1 available.

Regards,

Luciano.

lol pretty simple really, but not sure exactly how much use it will be? Would be more of a "neat" thing to have. Your link is for PHP code, but that kind of thing would be FAR better to be done in the client. Why make a server trip just to calculate a simple value?

For HP per emperial ton: (HP/lbs)*2000
For HP per metric ton: (HP/kg)*1000

[Bondonutz]

Brian,

Would it be possible to include the new Slash 4X4 in your Calculator ?

[whitrzac]

Originally Posted by Bondonutz

Brian,

Would it be possible to include the new Slash 4X4 in your Calculator ?

it used the revo diffs...

[Bondonutz]

Where would we be without your keen observation ??

Thanks Brian !

[BrianG]

Update:

Due to my issue with the Ten-T spur; added gear pitch calculator (finds pitch with gear diameter and tooth count inputs) to the Gear Diameter Calculator page.

Added Traxxas Slash 4x4 spur options and differential ratio.

Added Losi Ten-T differential ratio.

[Bondonutz]

Your awesome Mr B., Thank You

[BrianG]

Update:

Added a new page, Dogbone Dimension Table, to help users select a possible existing dogbone for custom setups.

Currently, the only entry is a test entry just to have something there. Please post the values as shown in the page and I will add them.

[pinkpanda3310]

Originally Posted by BrianG

Update:

Added a new page, Dogbone Dimension Table, to help users select a possible existing dogbone for custom setups.

Currently, the only entry is a test entry just to have something there. Please post the values as shown in the page and I will add them.

I have a few to add. The XTM shaft was too long for my calipers hence no decimal but I will let you round of the other figures.

XTM front centre swing shaft-
D1- 182mm
D2- 175mm
D3- 5.02mm 0.97inch
D4- 3.03 0.119
D5- 7.84 0.309
D6- 13.83 0.544

LST1 axle-
D1- 143.6 5.653
D2- 135.11 5.319 CVD end
D3- 4.4 0.173
D4- 3.03 0.119 2.51mm 0.1 inch
D5- 7.79 0.306 10.75 0.423
D6- 13.75 0.541 13.93 0.548

RC8T rear centre cva-
D1- 136.91 5.39
D2- 128.12 5.044
D3- 3.7 0.146 CVD end
D4- 3.00 0.118
D5- 7.81 0.307 10.52 0.414
D6- 11.7 0.46 sorry haven't measured it yet

I hope I have done all that right

[Metallover]

I love your site Brian! I got around to using your no-spark calculator on my e-bike. I got a HUGE spark with my 18s turnigys; now I get a lil tiny spark.

I used a tiny resistor off an old futaba tx board; I didn't expect it to work.... It worked perfectly!




I only have one question/concern

Should I have a diode wired in or disconnect my no-spark circut after I get the main leads plugged in? Someone on another forum suggested it saying my resistor would burn out if I left it plugged in.

[BrianG]

When you hook the main leads together, you are effectively bypassing the resistor so all the current flows through the main leads. The only way the resistor would burn up is if the main leads became disconnected during use and all the current tried to flow through the resistor. However, there are a number of reasons why this won't happen with anything larger than ~50 ohms, but won't get into that here. If you were using something like a 1-5 ohm resistor, then yes, there exists a chance it could burn out, but again, only if the main leads became disconnected.

[BrianG]

Panda: Thanks for that info! I assume the LST1 and RC8T are CVDs, and the XTM is a true dogbone?

Looks like I'm gonna have to add a seperate center CVD and CVD axle sections or pages. Otherwise, those measurements won't make much sense when applied to the current dogbone picture. Does anyone have a good clear picture of a center CVD and an axle CVD? All of mine are in vehicles and are not in "picture condition". Ideally, a clear, large (bigger is better for me to edit), well-lit image with a white background. PM me if you have pictures and/or can take some and I'll supply my email addy to send them to.

BTW: I am adding the following as a note to myself since my development PC is off and I don't feel like turning it on just for this:
Ofna Hyper 7 F/R:
D1: 97/104
D2: 90/97
D3: 4.8
D4: 3
D5: 7.9
D6: 12.7

[Aero]

Hello BrianG, its great to see added shock and dogbone info to the calculator/pages, part#'s would be great as well. The designation(?) numbers look to be somehow misplaced but that could be my computer..? I'd like to add more dogbones and maybe shocks, i have a few(..), and also got a few to add that i got emailed from generis once. No secret that i've been looking for some certain dims of dogbones, but now rather end up 'fetching' dogbones to suit the purpose, which Neo and others from esav.com began to do in practice.

And I like to add nitro ruster+nitro stampede 32p gearings (conversion-related), 1 HW motor, and maybe some more stuff. The motor spec listing is great too, as always you do awesome stuff, but the best thing is you are keeping up the good work!! I can add the data here, or thru email, after easter holidays..2+ weeks

I contacted David Gray from progressive rc to salute him on his earlier work, they have a nice and huge comprehensive list of specs on a-z stuff, that also can be sorted, and has a mighty-fine capacity/cost column. I suggested a sort of slight teaming up with you, he was hm intrigued ? when i suggested he contacted you, but hesitated as the amounts of work to ask/do was a big pile as well, that noone deserve. He see obstacles when it came to the web interface/design, and i have a hint that you're great with that part

the things i had in mind (to sugest) was a database look-up connection, and i was thinking of the option for people to ADD info to the listing, preferably only by having a log-in(..).or whatever in between, a mix of a calculator and a database. As i recall you writing too much data would not be wishable to a point ? Even though progressiverc's data maybe isnt all up to date/relevant, that would be a giant leap in usefulness, and probably end up as the most comprehensive listing of rc data and calculations possible..just venting some ideas thats all. so you could think about contacting him, if you wish or not, no probs..i just saw some potential thats all (consider it passed on from here ). Sorry I can't really myself add help in this matter, so to speak not really my fields.

feel more than free to remove the quote below, after you read it. (and get into a .com fight.. ) . I may remove it myself, if i get told to do so by david. It serves as display honest intentions only.

aero


"Thanks for the kind and detailed response.

I have certainly seen and used this very handy and well done calculator. I appreciate the idea and may look to contact Brian, but it is hard to ask for such large favors J.
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I am glad you have found the data useful.

We think alike, but unfortunately my web programming skills are tapped, and the current incarnation represents the limit of my ability/time at the moment. I am waiting for the right opportunity or volunteer to make the next logical step to a database system that would be easier to update and add to, hopefully with member logins to update for multiple editors.

Thanks for your recommendation and best wishes!

Regards,
David Gray
ProgressiveRC"
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http://www.progressiverc.com/index.p...d=13&Itemid=18