R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road

Thread Tools Search this Thread
Old 03-23-2002, 02:22 AM   #1
Tech Elite
Trips's Avatar
Join Date: Aug 2001
Location: 360 Speedway
Posts: 2,251
Trader Rating: 16 (100%+)
Default Rollout and Pinion calculator program

On the chance that someone might find this useful, I'm putting this up. If you've got a Texas Instruments graphing calculator, you might find this little program handy. It does two things... IN rollout mode you input your spur, pinion, tire size and final drive ratio and it will calculate your rollout. In Pinion mode, you input your desired rollout, spur gear, tire size and final drive ratio and it calculates what pinion to run to get that rollout.

I haven't programmed anything in maybe twenty years, and I did this in a hurry at the track tonight, so don't be offended at the ugly code...

Click the link below to download the program if you've got a Ti GraphLink cable, otherwise, here's the source code:

Lbl rm
Disp "1-Rollout"
Disp "2-Pinion"
Disp "0-End"
Input m
If m=1 Then
Goto r1
ElseIf m=2 Then
Goto r2
Goto r3
Lbl r1
Input "Spur",s
Input "Pinion",p
Input "Tire Size",d
Input "Final Drive",f
Disp d*/(s/p)/f
Goto rm
Lbl r2
Input "Rollout",r
Input "Tire Size",d
Input "Spur",s
Input "Final Drive",f
Disp s*r*f/(d*)
Goto rm
Lbl r3



Last edited by Trips; 03-23-2002 at 02:30 AM.
Trips is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
Offline Rollout Calculator Evilstealth Electric On-Road 53 05-07-2010 04:49 AM
Rollout Calculator mike ivy Electric On-Road 4 07-14-2004 09:32 PM
Rollout Calculator Sexray Electric On-Road 3 05-15-2004 06:45 PM
Rollout Calculator Stickboy Electric On-Road 12 03-28-2004 03:09 AM
Pocket PC Rollout Calculator Software dr_hfuhuhurr R/C Items: For Sale/Trade 1 12-12-2003 09:14 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off

All times are GMT -7. It is currently 07:34 PM.

Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net

SEO by vBSEO 3.5.0