Search found 1077 matches

by Vitamin K
Sat Jun 23, 2018 7:48 pm
Forum: Electronics
Topic: Need help with miscjunk.org timer!
Replies: 3
Views: 296

Re: Need help with miscjunk.org timer!

If it were me, I'd use a breadboard to get everything working, and only solder the final stuff after the bugs were ironed out.
by Vitamin K
Fri Jun 22, 2018 2:30 pm
Forum: General Topics
Topic: BSA wheels
Replies: 5
Views: 481

Re: BSA wheels

Derby Evolution posted a photo of the new wheels. Imagine the white wheels with graphite all over them. :eek: https://scontent.fapa1-2.fna.fbcdn.net/v/t1.0-9/36176078_1080989785388176_7742285567357878272_n.jpg?_nc_cat=0&_nc_eui2=AeGB8RdOrHzebqajizg30ASUxAoEsv2RAgb-wMCsTcq90-r4gSKqyYwigNlqNSlq6ByqgR...
by Vitamin K
Sun Jun 17, 2018 8:03 pm
Forum: General Topics
Topic: Red Rocket ?
Replies: 8
Views: 732

Re: Red Rocket ?

I would go with the Rejex.

You can also get a can of Max-Pro Heavy Duty Silicone spray. It works great on the axles (for use with krytox) and you can also spray it on a swab, wait 30 seconds for the propellant to evaporate and use it as a bore prep. For scout level stuff, it is great.
by Vitamin K
Thu Jun 14, 2018 2:51 pm
Forum: General Topics
Topic: Red Rocket ?
Replies: 8
Views: 732

Re: Red Rocket ?

Hi paulg, I have heard from more than one source that Red Rocket is just Rejex brand wax, with some kind of colorant added to it. https://i.imgur.com/lDFVzjEm.png Whether or not this is true, I can tell you that Rejex makes a fine wax for wheel bores. Liquid Glass works well too. Either should do yo...
by Vitamin K
Mon May 28, 2018 6:44 pm
Forum: Cool Websites
Topic: Community Pinewood Derby Day.
Replies: 2
Views: 562

Re: Community Pinewood Derby Day.

    whodathunkit wrote:
    Mon May 28, 2018 4:20 pm
    City of Manhattan Beach California... Community Pinewood Derby Day.
    http://www.citymb.info/departments/park ... -derby-day
    So...I guess that was today? :)
    by Vitamin K
    Tue May 15, 2018 6:06 am
    Forum: General Car/Truck Racer Topics
    Topic: Adding alcohol to graphite
    Replies: 5
    Views: 941

    Re: Adding alcohol to graphite

    Adding alcohol to graphite doesn't seem like a worthy road to pursue. That said, there may be some potential for using an alcohol/tungsten-disulphide (WS2) mixture for coating the bores and hub surfaces prior to a graphite lube. https://www.lowerfriction.com/howto.php The key would be applying the p...
    by Vitamin K
    Thu May 10, 2018 8:02 pm
    Forum: General Topics
    Topic: DFW wheel angle and edge
    Replies: 9
    Views: 837

    Re: DFW wheel angle and edge

    Vit K, have U been able to test run the different angles of dfw degree on your car? If so, how much of a difference has it made in your times? Just curious as I have much to learn. Thank U . I haven't really. I have theories on why a lot of bend is better than a little, but I haven't been able to d...
    by Vitamin K
    Thu May 10, 2018 5:28 am
    Forum: General Topics
    Topic: DFW wheel angle and edge
    Replies: 9
    Views: 837

    Re: DFW wheel angle and edge

    I usually run about 7-9 degrees on the DFW.

    What I've heard the league racers say is akin to "As much bend as you can put on the front axle and still be able to get the wheel on."
    by Vitamin K
    Wed May 02, 2018 3:14 pm
    Forum: Electronics
    Topic: Need replacement switch for RaceMaster timer
    Replies: 11
    Views: 1522

    Re: Need replacement switch for RaceMaster timer

    We have a four lane Grand Prix track with a RaceMaster timer, but our starter switcher thingy (sorry for the technical lingo) is not working. The small piece of metal that triggers the timer when the cars are sent down the track does not start the timer. Any suggestions for a replacement part? Any ...
    by Vitamin K
    Fri Apr 27, 2018 9:25 pm
    Forum: General Car/Truck Racer Topics
    Topic: Practice Track Plans
    Replies: 4
    Views: 767

    Re: Practice Track Plans

    I gotta say, if you're gonna invest all that time and energy into making even a simple track, why not spend a few bucks for an actual car kit, with real wheels? I think the metal washers might eventually damage a wooden track.
    by Vitamin K
    Wed Apr 25, 2018 10:45 am
    Forum: General Car/Truck Racer Topics
    Topic: Practice Track Plans
    Replies: 4
    Views: 767

    Re: Practice Track Plans

    I'm hoping to finally build a practice track this summer, but I thought I'd crib off of these plans here:

    Image
    by Vitamin K
    Wed Apr 18, 2018 6:50 am
    Forum: General Topics
    Topic: BSA axle ridges
    Replies: 13
    Views: 1482

    Re: BSA axle ridges

    AaronS, I think I am starting to gravitate more to that way of thinking regarding BSA axles. I used to carefully file the ridges down, but now I just remove the flashing and polish the crimp marks smooth. Some folks on the league forums who race in the "Box Stock" division have suggested this is pre...
    by Vitamin K
    Thu Apr 12, 2018 5:13 pm
    Forum: Tracks
    Topic: Lanes width for none center guided tracks?
    Replies: 2
    Views: 396

    Re: Lanes width for none center guided tracks?

    The Super Track site says each lane is 3.4 inches wide.

    https://www.supertimer.com/track/supertrack.html
    by Vitamin K
    Thu Apr 12, 2018 6:22 am
    Forum: Tracks
    Topic: Derby Magic Test Track
    Replies: 3
    Views: 791

    Re: Derby Magic Test Track

    Have you had any issues with track straightness? I have heard some folks complain of a lack of rigidity from the plastic, so the track tends to meander.
    by Vitamin K
    Wed Apr 11, 2018 1:28 pm
    Forum: Car & Semi-Truck Construction
    Topic: Testing your car on a guided track,when racing on a lane track
    Replies: 41
    Views: 3111

    Re: Testing your car on a guided track,when racing on a lane track

    MJThurston wrote:
    Wed Apr 11, 2018 12:51 pm
    Correct, my first idea is to get some thin ply wood and use if that can be attacked to the frame.
    Along all 32 feet???

    That sounds like quite the project.

    Honestly, just build a tuning board and go with that.