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securing weight

Discussion in 'Ask The Pros' started by JamieM, May 12, 2019.

  1. JamieM

    JamieM Pinewood Ninja

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    How do you guys fasten the tungsten cubes that allow you to use them for your next build? I have 2 scouts and this is the third set of cars we are building this year and I'd like to be able to reuse.
     
  2. Gso125 Racing

    Gso125 Racing District Champion

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    3m double face tape
     
  3. Watchitgo

    Watchitgo Pinewood Ninja

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    +1
     
  4. Chief

    Chief PWD Royalty

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    3M duct tape, the thinner stuff works pretty good but the thick aluminum stuff works great too.
     
  5. Brian Stanley

    Brian Stanley Pinewood Ninja Pro Racer

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    I'm going to move over to the tape, but I have used 30 minute epoxy before. If you need to get them out lay a hot soldering iron on them for about 10 seconds and they'll pop right out.
     
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  6. Jimmy & his 2 Kids

    Jimmy & his 2 Kids National Contender

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  7. JamieM

    JamieM Pinewood Ninja

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    Thanks guy! I've considered using 2 sided tape similar to what I've used on RC cars (also called servo tape) but thought the thickness would be an issue. Happy to hear others have had success using much thinner tape.
     
  8. JamieM

    JamieM Pinewood Ninja

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    Great suggestion. I'm going to give it a shot!
     
  9. Jimmy & his 2 Kids

    Jimmy & his 2 Kids National Contender

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    Just be careful with a hot iron. Extreme heat can cause warps in wood. Plus that’s right at the rear axle holes.
     
  10. JamieM

    JamieM Pinewood Ninja

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    Good point! Chances are though we wont be using that car again. District race was really rough and I'm concerned it tweaked the fragile wood. Headed to nationals and will build freshies.
     
  11. Jimmy & his 2 Kids

    Jimmy & his 2 Kids National Contender

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    Really can’t go wrong with the 2 sided tape. I race both Awana and also league at APR but I’m on the cheap right now and dont have the funds to buy a bunch of weight so the 2 sided tape allows me to transfer the cubes back and forth to different cars very easily. Plus the tape is easy enough to pull off and redo if it looses its stickiness after a while. And the wood remains bare with no extra weight. Plus I’ve never had a cube come loose.
    Hope that helps.
    Jimmy
     
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  12. Mojo Racing

    Mojo Racing National Contender Pro Racer

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  13. Reecedad

    Reecedad Council Champion

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    I use double sided carpet tape also. It holds my weight but allows me the chance to roll my weight around without much difficulty.
     
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  14. Scott Porter

    Scott Porter Pinewood Ninja

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    3m vhb double sided tape and as suggested your choice of tape over.
     
  15. Cubscout Dad

    Cubscout Dad District Champion

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    I just use some 100% silicon I have laying around then Silver tape over the back half of the bottom of the car. The silicon lets you just pop the cubs out easy and no tope to deal with.
     
  16. JamieM

    JamieM Pinewood Ninja

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    For they guys using the 3M VHB tape, can you share a part number? There are so many to choose from! Who knew?
     
  17. Scott Porter

    Scott Porter Pinewood Ninja

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    I will have to get back on this. I snagged some at my business and am on vacation and don't know the number of the tape (think it is 4032). I am trying to find out or get a recommendation from the 3M tech folks. I didn't realize there were so many also. Will be back as soon as I can but might be a week and half. Sorry for the delay.
     
  18. Scott Porter

    Scott Porter Pinewood Ninja

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    Sorry it has been awhile since I last posted on this. I since received a couple of 3M VHB tape samples. One was #4926 and another #4936. Also used a primer stick #94. The weight bay must be painted for the tape to stick best. 3M says VHB not designed to adhere to raw wood. So I used the #94 primer stick (it dies quickly) on top of my paint in the bay and then tested the two samples my jobber sent (his recommendations) While they both worked, I think I liked the #4936 best. Seems like you could paint the bay, primer with the 3M #94 stick and then use the tape, add weights and then your silver tape over the weights. Not saying there might not be another #VHB that works better but I tested these and it seems like it will work for racing and then you can reclaim the weights when finished with the car. My VHB samples were 1" wide, so I cut to fit. I think they even have different widths. Sorry you might have to order a lifetime supply at once? :) I look forward to hearing if someone else has a better # of VHB they use.
     
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  19. txchemist

    txchemist National Contender

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    If you first put some metal tape on the wood, and then the 3M VHB tape and then weights, it will not come off.
    I use 3m VHB RP25 a thin but super strong tape. I have seen it for sale in smaller quantities on eBay.
     

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