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  1. ajward

    The Eggtimer Apogee - A Very Simple Apogee-Deployment Altimeter

    It's the other way round on balance plugs there is a negative attached to the negative of the first cell, then there is a positive attached to the positive side of each cell. (i have check this with the cells i have using a multimeter) so it should definitely be possible to power it this way...
  2. ajward

    The Eggtimer Apogee - A Very Simple Apogee-Deployment Altimeter

    Yes, but if you wire it like the diagram above, using the negative from the switch then use just the positive from the first cell (you just have to be careful not to take the positive from the second cell otherwise you will get full voltage) on the balance port to power the apogee it should work.
  3. ajward

    The Eggtimer Apogee - A Very Simple Apogee-Deployment Altimeter

    you could in theory take the power from a single cell of a multi cell battery through the balance port. You just have to be aware you are then intentionally unevenly discharging it.
  4. ajward

    The Eggtimer Apogee - A Very Simple Apogee-Deployment Altimeter

    Built my first Apogee up this afternoon, nice little kit to build!
  5. ajward

    The Eggtimer Apogee - A Very Simple Apogee-Deployment Altimeter

    got my shipment yesterday! under two weeks to the uk is pretty good!!
  6. ajward

    Octolapse and Prusa MK3 help

    yes i have printed items that do large moves without time-lapse. I actually haven't yet played with Octolapse simply because i don't have a permanent place to set my printer up right now. So i would start with a retraction test like you posted or there are plenty on Thingiverse. Dial everything...
  7. ajward

    What did you do rocket wise today?

    Designed and 3d printed protective storage cases for my Eggtimer flight Computers. Quantum: https://www.thingiverse.com/thing:3325818 Proton: https://www.thingiverse.com/thing:3325801 Quark: https://www.thingiverse.com/thing:3324060
  8. ajward

    Octolapse and Prusa MK3 help

    The stringing is probably more apparent because the extruder is moving away from the model, pausing than returning, resulting in some oozing from the nozzle and stringing. I would try dialling in your temperate, maybe increase retraction slightly and ensure that you non printing moves are done...
  9. ajward

    Soyuz 1/50 build

    A proton in the same scale as the Soyuz would be fun!
  10. ajward

    Soyuz 1/50 build

    Its been a fairly productive weekend on the 3d printing front. I have been able to print what hopefully will be the final pieces used for the rocket as well as a full second set as spares. You can see from the pictures that once we fit checked the 3D printed parts with the tubes being used...
  11. ajward

    Soyuz 1/50 build

    So we decided to have a bit more fun with 3d printing and have a play at modeling some of the smaller parts to add detail to the build. For this we have started with the grid fins. These posed a bit of a challenge! As you can see from our first effort on the left the frame printed fine but...
  12. ajward

    Soyuz 1/50 build

    So to introduce myself i am the brother with access to a laser and 3D printer! While i have a fair amount of experience with 2D cad programs and laser cutting this is my first proper foray into the world of 3D modelling and 3D Printers. After a phew hours playing round yesterday i was able to...
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