Search found 234 matches
- Mon Feb 23, 2015 12:53 pm
- Forum: Car & Semi-Truck Construction
- Topic: Car setup for wood track, no center rail
- Replies: 4
- Views: 6265
Re: Car setup for wood track, no center rail
This is my son's first derby and he's really excited. I've read all the tips through the forums, weight in back, thin body, work on axels and wheels. I just found out that the track his pack uses is all wood with no center rail, just side rails. What would be the best way to set his car up? Run as ...
- Sun Feb 22, 2015 6:54 pm
- Forum: Car & Semi-Truck Construction
- Topic: Blocks out of alignment in the BSA boxes
- Replies: 11
- Views: 13151
Re: Blocks out of alignment in the BSA boxes
Drill your holes on the opposite side and take a coping or hack saw and just saw up to your holes.
- Fri Feb 20, 2015 1:49 pm
- Forum: Car & Semi-Truck Photos
- Topic: Nellie faye / Mod
- Replies: 23
- Views: 20134
Re: Nellie faye / Mod
You should have the wheel hole or slot location relieved ahead of installing fenders. Use a spare axle the get the holes loose enough that you can just push them in with your thumb when installing the wheels after you're done with the fenders. Sporty, when I build a car without fenders I push agains...
- Sat Feb 14, 2015 7:45 am
- Forum: Car & Semi-Truck Construction
- Topic: Mitigating negative cant problems for taller bodies
- Replies: 27
- Views: 31117
Re: Mitigating negative cant problems for taller bodies
Just aluminum HVAC tape.
- Fri Feb 13, 2015 4:42 pm
- Forum: Car & Semi-Truck Construction
- Topic: Pinewood Derby Car Mini-Lathe
- Replies: 20
- Views: 18202
Re: Pinewood Derby Car Mini-Lathe
Whoa. Never knew about the RC lathe units. They even have wheel truing lathes. They seem to lock in the wheels with mandrels that slide on the spindle and secured with a screw.
- Wed Feb 11, 2015 11:58 am
- Forum: Commercial
- Topic: Anyone manufacturing Wood Tracks for sale?
- Replies: 5
- Views: 14192
Re: Anyone manufacturing Wood Tracks for sale?
I think derby magic is your cheapest track option for a personal track. It is plastic though so it can build up static and collect debris. I read that can somehow also damage the wheels. Not sure if anyone has come up with a solution for plastic tracks to discharge any static build up. I think the s...
- Wed Feb 11, 2015 5:59 am
- Forum: Car & Semi-Truck Construction
- Topic: Wheel rules question.
- Replies: 8
- Views: 8843
Re: Wheel rules question.
If you already have holes done I think giving the back wheels a very slight bend will be fine. Depending on your axles they may already have a slight bend that you can work with to tune the rear wheels so they travel to the axle head when rolling forward and back. If not, giving them a slight bend t...
- Tue Feb 10, 2015 10:35 pm
- Forum: Car & Semi-Truck Construction
- Topic: Wheel rules question.
- Replies: 8
- Views: 8843
Re: Wheel rules question.
Are you using the slots or do you have a setup to drill axle holes? IdeallyII would use a drill press with a "silver bullet" block and use a smaller pin to get the hole drilled at a 1* angle. If using slots I would just push them in at a very slight angle. For the rears you could take a sm...
- Tue Feb 10, 2015 9:51 pm
- Forum: Car & Semi-Truck Construction
- Topic: Pinewood Derby Car Mini-Lathe
- Replies: 20
- Views: 18202
Re: Pinewood Derby Car Mini-Lathe
Properly turned wheels are cut to be true to the bore. Not sure how this tool locks all 4 wheels together. When finished they may all be the same diameter but the runout relative to the bore could end up worse then before. Maybe using the jig with 1 wheel at a time and a gauge pin properly sized for...
- Tue Feb 10, 2015 3:04 pm
- Forum: Car & Semi-Truck Construction
- Topic: Wheel rules question.
- Replies: 8
- Views: 8843
Re: Wheel rules question.
I would not recommend trying to sand your wheels true. You are most likely to cause more harm then good. Giving them a light sanding to remove any flaws is fine, I would do that at around 1k-2k grit. Trying to spin them on a drill to sand them true to the bore is not going to give you much better wh...
- Tue Feb 10, 2015 7:04 am
- Forum: Car & Semi-Truck Photos
- Topic: Bj & the bear, semi build
- Replies: 5
- Views: 6514
Re: Bj & the bear, semi build
will we be seeing some Sporty and Sons big rigs at the MA derby?
- Tue Feb 10, 2015 7:00 am
- Forum: General Coordinator Topics
- Topic: Which of the rules "in the box" prevents use of lathe?
- Replies: 13
- Views: 21180
Re: Which of the rules "in the box" prevents use of lathe?
No. The list I made was mainly for examples. Having a wheel weight minimum isn't necessary. A 2.4g weight limit barely leaves enough room for turning the outside of the wheel on a lathe and removing the double step. Most lightening is pretty obvious just checking visually or by feeling the inside of...
- Mon Feb 09, 2015 8:50 pm
- Forum: General Coordinator Topics
- Topic: Which of the rules "in the box" prevents use of lathe?
- Replies: 13
- Views: 21180
Re: Which of the rules "in the box" prevents use of lathe?
No. the rounding is for reshaping the tread surface to make it round, like a motorcycle tire. The tread shape needs to remain parallel to the bore. The box rules won't stop someone from turning wheels on a lathe to fix any imperfections in run out. Yes wheel weight is not something most want to do. ...
- Mon Feb 09, 2015 8:30 pm
- Forum: General Coordinator Topics
- Topic: Custom Spark Plug and Hotwheels Topper Trophies
- Replies: 7
- Views: 18924
Re: Custom Trophies +Gold Paint Advice Needed
Lol. Thanks for sharing that. This all started to try making something unique and for less then the $40ish it would cost for trophies at a store.
- Mon Feb 09, 2015 3:45 pm
- Forum: General Coordinator Topics
- Topic: Which of the rules "in the box" prevents use of lathe?
- Replies: 13
- Views: 21180
Re: Which of the rules "in the box" prevents use of lathe?
I would suggest adding more details to remove the vagueness. *No removing material from the inside. Min weight ~2.4g *minimum tread width ~7.5mm *removing outside hub double step allowed? Etc. Decide where you want to draw the line. What I listed so far I think allows for basic mods without complete...