Search results

Date Relevance Most replies

  1. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    Keep in mind that most of you use a 50xx <1600 watt version, the motor I'm using is capable of outputting 2000+ watts, it's the longest and torquiest of the 50xx series. It's too long to fit two of them on one truck
  2. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    It has been a blast for me, not a single hill it couldn't conquer. That's probably due to my weight (60kg) but it was a perfect match on 12x36 setup Regards
  3. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    Thank you for expressing your interest in my ESC I will post a detailed thread as soon as I finish writing the firmware, which will be in a few days So far I've been tuning the start-up timings and power for the best possible start Here's a video of the motor spinning up without load, it...
  4. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    I can also recommend the MDF piece, it soaks up some vibrations the router creates, I've found it more reliable than mounting metal on metal
  5. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    The programming is the easy bit imho. There are loads of tutorials and free software out there. The thing that bites you the most is being in a rush. I can't count the amount of times I broke £10 tools or almost drilled through my work bed due to stupid mistakes My recommendation would be to...
  6. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    They seem to cope quite fine, obviously not as good as a dedicated CNC mill but it's perfect for hobby use Here's a video of one: KVmf_dac8gY
  7. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    @longhairedboy The 4060/6040 CNC should cost no more than $1800, you might want to dig deeper in your search -> http://www.amazon.com/Sanven-Engraver-engraving-Drilling-Professional/dp/B00C5WEXZO/ref=sr_1_3?ie=UTF8&qid=1432760969&sr=8-3&keywords=6040+cnc The above linked machine also has the...
  8. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    My recommendation would be finding a 4060 CNC router on ebay, changing the spindle to a 1.5KW one (£150). It would result in a very similar rigidity to my machine costing about the same as well Regards
  9. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    I did a quick weight check today, the entire board weighs in at 6.5kg with 15A 6S worth of batteries How does that compare to other boards?
  10. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    I'm using the turnigy aquastar 120a which surprisingly doesn't even get hot without a heatsink. The microcontroller it uses is different from the common atmel chips, it's a silabs one, I've managed to program blheli software onto it after heavily modifying the way it senses the motor fases...
  11. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    I've finally came up with an idea on how to finish this board the right way! The aluminium sheet started to show signs of wear and metal fatigue after ~ 120 miles of travel. The plan is now as follows: - Remove the metal sheet - Reinforce the deck with a couple carbon fiber tubes / strips -...
  12. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    I did it !!!! After two days of struggles I've managed to port one of the existing ESC firmwares to this little tricky device! I am now able to fully program custom breaks and a better start-up routine L6zQm_X6Z4w Updates will follow :)
  13. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    There hasn't been much progress lately as I am still rethinking the entire project I have however started to minimize the footprint of my electronics and started integrating them into one of my trucks, this way I can make the board look a little bit sleeker. I have also started modifying the...
  14. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    Thanks you everyone for your amazing input! Yesterday in class I've had someone ride my board that is considerably heavier than me, and the board did bend uncomfortably much, I have temporarily added a stainless steel support bar through the middle of the board, adding quite a bit of weight...
  15. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    This weekend I've made a lot of progress, I even test-rode the board for 18 miles around in central London (It was a blast!) I've discovered one thing so far; London streets are dirty, and by dirty I mean really dirty: The pictures above were taken when I've started disassembling the board...
  16. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    @sl33py; Thank you for your suggestion. I'm afraid that cutting the sheet smaller would not be a good option, the deck would snap since the sheet is now the main support structure. The sheet itself weight just a little over 400g, which is almost unnoticeable. So far it seems that I will...
  17. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    Today my 1mm thick sheet of aluminium arrived, so I've started working on the bottom panel. After a quick assembly I have realized that due to the curved shape of the sheet, the deck is more sturdy than it was originally, so I have decided to skip the supports in the battery slot. Drawing a...
  18. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    @Freshair A BMS would be a dream, but I am lacking space for anything more. I'll have a discrete connector on the underside of the board bringing out 3 cells per pin (6 in total) , which I will charge using a LiPo balancer. I am slightly concerned about having 3 cells in series x 6, might cause...
  19. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    @CSN 3 out of 9 Regards
  20. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    @Freshair; There will be double sided mounting foam on both sides, similar to this but thinner: http://hobbyking.com/hobbyking/store/__8999__Peel_n_stick_foam_double_sided_tape_10x5inch_4mm_thick.html Each row of batteries will also be separated by either a 3D printed plastic or CNC cut wooden...
  21. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    Thanks for following guys! I went ahead and started wiring the batteries. LiPo cells are known to be hard to solder because they have aluminium terminals, setting my soldering iron to 450 degrees C, applying liquid flux and soldering the point as fast as possible seems to have resulted in the...
  22. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    The board has arrived today! After a short cruise I have disassembled it and started carving out the battery slot, quite pleased about the result. I will now start adding support struts in between the batteries before I make the bottom aluminium panel
  23. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    @Beto, it does have a brake, I've tested it. It does seem a bit harsh, not sure how it will translate into stopping a 60kg object but the worst case scenario would be writing a custom firmware for it and integrate the remote receiver to the ESC, omitting the arduino. Upon taking the ESC apart...
  24. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    Thanks Sami, good luck with the CNC! I am going to modify this ESC quite a bit to make it bolt-on to my deck making the aluminium sheet act as a giant heat-sink. Apart from that, this ESC does have a brake, we'll see how that goes Cheers
  25. Marcin

    DIY Stealthy Longboard Build Log (Integrated batteries)

    =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= RESERVED =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Back
Top