Jump to content

BDA780

Members
 View Profile  See their activity

  • Posts

    3262

  • Joined

  • Last visited

  • Days Won

    5

 Content Type 

Posts posted by BDA780

    Carbon parts via 3D printing, thoughts, ideas, info

    in General Car Chat

    Posted

    Is friend went to a marine expo in witch he found a company that got given a task from a boat team. They needed a knife that their guys could wear on them, could cut through any top with ease and be light.

    They 3D printed the knifes from some sort of metal, they were sharp from the get go (sharp edge was printed) and it came with a printed sheath they could wear as a necklace. And while thing weighed not much more then I lighter.

    Can be done, time vs effort vs materials

    It's seeming more like wood molds CNC'd would seem like less hassle but it's still costly

    I'll see what else comes up

     

    titanium%2Bsls%2B3d%2Bprinted%2Bknife%2B

    Link - http://www.victoryknives.nz/

    • Like 1

    Carbon parts via 3D printing, thoughts, ideas, info

    in General Car Chat

    Posted

    Ive seen acetone vapour being used to smoothen the surface of 3D printed parts.

    The issues with it are controlling the level of smoothening (defined edges are lost as are small details) and the biggest issue is inhaling the vapour.

    I think your best bet would be with applying an epoxy coating.

     

    The other thing to consider is the softening temp of the 3D printed plastic. If you apply a heat gun to remove the mould there is a risk of distorting the mould.

    You can resolve it by using a specialised high temp 3D print plastic.

     

    The more important question is what size parts are you making? Machine bed sizes are limited in 3D printing with the largest accurate machine I know of being 600x600x600mm

    • Like 1

    Auckland Monthly Meet - 17 February

    in Upper North Island Region

    Posted

    The Auckland Monthly Meet!

    Wednesday 17 February

    7:30pm onward

    A chance to catch up with fellow club members, talk some shit and eat some lush foodstuffs.

    Burgerfuel and Mexicali Fresh

    cnr of Robert St and Hurst St, Ellerslie

    See map.

    OSMMmap1-1.jpg[/url]


    The DEAL$:

    Burgerfuel.jpg

    FREE Drink with Burger and Chips Purchase

    (From the COKE range , excluding mini burgers)



    FIRST MEET??If you are new to these meets here are a few points that may help,Most people usually show up between 730 and 8 ish,We roll down to get burgers sometime around 8 / 8:15 ish. Or whenever you feel like really.We sit around either at burgerfuel or back up top and continue the yarns.Remember its always a casual affair , a place to yarn to mates and make new ones.An oldschool car is not required at all, of course if youve got one on the road then bring it and show it off!! Doesnt need to be flash or special.SOME OF THESE ARE NEW, MOST OF THESE ARE COMMON SENSE. WE WILL PROVIDE A FEW GENTLE REMINDERS WITH THE NEW RULES BUT REPEAT OFFENDERS MAY BE ASKED TO LEAVE.

     

    RULES AND THE BORING STUFF!!

    Basically these are in place so we have a fun and friendly meet and leave the carpark clean and tidy like we were never there.

    • Take your rubbish away with you or put it in a bin, (Use the public bins downstairs not the private ones belonging to the business up top
    • Smokers please don't dispose of your butts on the ground!
    • Please limit the ALCOHOL consumption. Its a public place and the Police/security regularly stop in and we don't want want anyone getting in trouble, We also don't want people leaving empties around.
    • You are welcome to invite a few mates, but please note you are 100% responsible for their behaviour
    • If you belong to other clubs and feel they might be keen to come check out our meet then that's cool but please see BDA780, Threeonthetree or 73crownwagon for permission before inviting them.
    • NO Skids or Reckless/Dangerous driving
    • Please leave a space near the fenced off area clear for the cleaners and don't block them in if they are there.
    • Park in a proper carpark! If its full then just use a bit of common sense and try not to park to many people in.
    • Newschool cars please park to one side and be prepared to move if we get short on space.
    • If its raining and we have to park downstairs then new cars park upstairs or out of the way. The covered carpark is very small and needs to be OS only,

    If you have any suggestions or input for the meets then PM BDA780 , Threeonthetree or 73crownwagon Thanks!!

    • Like 5

    Kumeu Hot Rod Festival - 16-17 January 2016

    in Upper North Island Region

    Posted

    I'm planning to be there tomorrow. So how does it work getting in? Do I park outside and walk in or can I drive in with my E28? I haven't been before so not sure how it works.

    Go in through the gate nearest Kumeu township for display cars.

    Best route there if coming from the shore is to go left at the roundabout to taupaki and then go around the back of the showgrounds to the entry.

    • Like 1
    • Popular Post
    • Popular Post

    BDA780’s Miniature Twin Rotor Wankel Engine project

    in Other Projects

    Posted

    Since the beginning of this project O.S. decided to discontinue production of the Wankel engine, this in turn has obviously been met with an increased demand for second hand engine and parts.

    As the Type II engine is the rarest on auction sites, I decided to purchase a used condition Type I (first of the PP engines) and use that as a base for the project.

    The first step was to dismantle the engine to see its condition.

    19598980080_d6b4f4b2db_c.jpg

     

    19791777401_376fed4950_c.jpg

     

    19786992755_9c1fc7b902_c.jpg

     

    Disassembly proved quite a challenge with one main setback. Whilst removing the rotor gear the head of my 2mm hex bit broke off into the cap screw proving a pain to get out, only for me to cock it all up and loosen the rotor from the vice chipping part of the rotor where the apex seal sits. The rotor could be reused but I have since bought a replacement.

    19430992074_0a346fa5e6_c.jpg

     

    Unsurprisingly the engine is simple in architecture with no side seals just apex seals held in by two mini leaf springs. The beauty lies in the finish of the parts. Without side seals the rotorhousing, rotor and end plates are all surface ground to ensure the engine has compression.

    20058997581_9d0fd844f3_c.jpg

     

    20053651315_d30d8f6abb_c.jpg

     

    20027365286_1feae51589_c.jpg

     

    19865632190_25ccf9ec38_c.jpg

     

    As I have two generations of peripheral port O.S. Wankels I got rotorhoe to take some extra images images of the differences between generations.

    20058977551_a6dbfdbf16_c.jpg

     

    19865627260_1f01ac211f_c.jpg

     

    From what I have read and can be seen in the image above the Type II has a machined rotor housing and rotor as well as a newer glowplug, carburettor and cap screw fasteners. The remainder of the parts carry over from the Type I.

    Thus, I aim to improve the Type I where possible and encompassing some of the Type II upgrades.

    • Like 19

    Auckland Monthly CHRISTMAS Meet - 16th December

    in Upper North Island Region

    Posted

    Sorry mate, we're all sold out at this stage. I'll try and get some more but it won't be quick.

    Also, come and introduce yourself. I saw you at Drag day but come and get amongst it, make yourself known (like your car haha). It's kind of the prerequisite before we hand out stickers

    Do you know what happened to the ones i was meant to be sent?

     

    I have stickers PM me for deets Caylum

×
×
  • Create New...