Search found 1014 matches

by Vitamin K
Fri Feb 16, 2018 3:33 pm
Forum: Car & Semi-Truck Construction
Topic: Best placement for 3/8" lead wire weights
Replies: 12
Views: 476

Re: Best placement for 3/8" lead wire weights

VK, Said as seen above .. that you were allowed to move the axle holes. (and asks for suggestions on weight placement ) I asked about moving the last weight pocket hole higher up in the design.. And with what Speedster said I applaud him for talking about the 3/8 lead weight & getting more weight b...
by Vitamin K
Fri Feb 16, 2018 3:32 pm
Forum: Car & Semi-Truck Construction
Topic: Best placement for 3/8" lead wire weights
Replies: 12
Views: 476

Re: Best placement for 3/8" lead wire weights

I was wrong. I thought my friend told me the lead came from Bass Pro Shop. It is not lead. It is steel. VK, you said you filled up the holes. That should amount to about 4 ounces. How deep are those holes? They're drilled deep enough to accomodate a 1.5" length of wire. I drill down as far as I can...
by Vitamin K
Fri Feb 16, 2018 1:04 pm
Forum: Electronics
Topic: Bluetooth Track timers
Replies: 2
Views: 121

Re: Bluetooth Track timers

Cables = Dependable Bluetooth = Occasional dropped communications Maybe Bluetooth is more reliable these days, but when I tested a Serial to Bluetooth device a few years back, it would occasionally drop communications. You don't want that happening in the middle of running a heat. Maybe if the time...
by Vitamin K
Thu Feb 15, 2018 9:39 pm
Forum: Car & Semi-Truck Construction
Topic: Best placement for 3/8" lead wire weights
Replies: 12
Views: 476

Re: Best placement for 3/8" lead wire weights

VK, The very last drilled weight pocket in the end of the car.. could you change up your COG even more by drilling it a little bit higher up from the bottom of the car body? I have seen some larger car designs where the last weight pocket in the end of the car is drilled a little higher up from the...
by Vitamin K
Wed Feb 14, 2018 7:59 pm
Forum: Car & Semi-Truck Construction
Topic: First real derby race... wheel advice
Replies: 12
Views: 274

Re: First real derby race... wheel advice

Also we drilled weight holes like the ones in the PDF.... I bought a mixed set of tungsten weights.... should I be using tungsten rods instead or does that make any difference? For drilled holes, tungsten rods will fit most easily. Depending on the shape of your weights, you may need to cut differe...
by Vitamin K
Wed Feb 14, 2018 11:06 am
Forum: Car & Semi-Truck Construction
Topic: First real derby race... wheel advice
Replies: 12
Views: 274

Re: First real derby race... wheel advice

How much difference does extended wheelbase make over the standard axle slots? Not a huge difference. IMO, an extended wheelbase makes the car more stable and easier to tune. Also, moving the rear wheels back gives you better weight distribution and energy transfer. That said, it's a minor consider...
by Vitamin K
Wed Feb 14, 2018 10:44 am
Forum: Car & Semi-Truck Construction
Topic: First real derby race... wheel advice
Replies: 12
Views: 274

Re: First real derby race... wheel advice

Good to know! I was prepared to try to take weight off of the wedge by drilling some holes in it or figured out a way to hollow out the center. I found this website and was intrigued. http://boysdad.com/archives/3306#_Toc301429867 Routing is hard (IMO). I have never been up to doing that. If I want...
by Vitamin K
Wed Feb 14, 2018 9:47 am
Forum: Car & Semi-Truck Construction
Topic: First real derby race... wheel advice
Replies: 12
Views: 274

Re: First real derby race... wheel advice

Hah, looks like a rather serious typo in the rules here: https://i.imgur.com/ZizZ7f3.png May want to point that out to the race organizers. Anyhow, I think you'd be in your rights to purchase a set of wheels that had only been trued on the outer tread, e.g.: http://derbyevolution.com/Precision-Turne...
by Vitamin K
Mon Feb 12, 2018 8:34 pm
Forum: Planning, Preps & Running the Race
Topic: Best Design Voting
Replies: 9
Views: 336

Re: Best Design Voting

Ugh. Personally I would do all I could to keep the Derby from being a time where kids were on phones. Just personal bias. :)
by Vitamin K
Mon Feb 12, 2018 10:11 am
Forum: General Car/Truck Racer Topics
Topic: Aerodynamics ?
Replies: 23
Views: 709

Re: Aerodynamics ?

:agree: Same here. one of the last things I do. It can be tricky making sure you don't temporarily warp the car in drill setup and then it will look like you can't drill straight when you check the drill job. i think this is going off topic, but being that the intent of the thread was mislead by th...
by Vitamin K
Sat Feb 10, 2018 6:44 am
Forum: Scheduling Methods
Topic: How to guide for spreadsheet
Replies: 8
Views: 291

Re: How to guide for spreadsheet

bobcatbrown520 wrote:
Fri Feb 09, 2018 9:13 pm
Is there any guides for how to make a race schedule in a spreedsheet program so I can import it as a csv file?

Sent from my LG-H810 using Tapatalk
Do you mean creating a roster in a spreadsheet and then importing it into GPRM?
by Vitamin K
Fri Feb 09, 2018 3:42 pm
Forum: Planning, Preps & Running the Race
Topic: Best Design Voting
Replies: 9
Views: 336

Re: Best Design Voting

I don't know that I'd trust Scouts to only choose three to vote on if it was by push-button.

If the beads are a uniform weight, couldn't you tally by weight?
by Vitamin K
Fri Feb 09, 2018 12:09 pm
Forum: Planning, Preps & Running the Race
Topic: Storing and Transporting impounded Cars?
Replies: 8
Views: 1626

Re: Storing and Transporting impounded Cars?

Oh hey, this is an old thread. :) I actually came up with a solution involving the stackable boxes they use for fruits and vegetables at Costco. I put a cardboard insert inside with 1.5" strips of foam insulation bonded to it that the cars rest on. Beneath each car, I push a section of bamboo skewer...
by Vitamin K
Thu Feb 08, 2018 9:41 am
Forum: Car & Semi-Truck Construction
Topic: Rail Riding - First Attempt (failure, sort of)
Replies: 5
Views: 296

Re: Rail Riding - First Attempt (failure, sort of)

Here are my opinions on the subject: - Railriding can be done with bent rear axles, but having a method of alignment is crucial. I would point you to Stan Pope's "camalign" system that uses weights to isolate performance of each rear wheel to make tuning a lot faster: http://stanpope.net/bentaxleali...
by Vitamin K
Mon Feb 05, 2018 7:36 pm
Forum: Car & Semi-Truck Construction
Topic: Can I have some help?
Replies: 24
Views: 1052

Re: Can I have some help?

ah8tk wrote:
Mon Feb 05, 2018 6:15 pm
If you are looking to build a full rendered car, here is an article I wrote a few years back.

http://www.maximum-velocity.com/pinewoo ... tm#feature
Andy,

Wow, that's an incredible write-up! Very detailed! I wish I had a small fraction of your woodworking ability.