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    I got this Dremel...

    I got this Dremel for heat shrinking but it's great for the job of heating up bolts. Very easy to hold and target compared to larger torches or heat guns.
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    Think all the postie's and parcel men wanted to...

    Think all the postie's and parcel men wanted to get home to watch the wedding! The bits I ordered on eBay came also the clamps I ordered from http://www.simplybearings.co.uk items look good and...
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    I managed to fit up one side of the drive system...

    I managed to fit up one side of the drive system in the ply mock up. I narrowed the chassis to 400mm but that maybe too narrow for the final build.
    Never broke and shortened a chain before, so...
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    8088 I didn't start cutting but drew what...

    8088

    I didn't start cutting but drew what could be a layout. I could go steeper but that makes the gap to the motor very small. I drew a fainter pencil line to show that angle. The darker sharpy...
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    Thats a good idea, could help if I land on my...

    Thats a good idea, could help if I land on my rear to self right but would expose the wheels to rear attacks. I'll get my saw out tonight.
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    Let's assume I narrow it to 500mm, length will be...

    Let's assume I narrow it to 500mm, length will be 550mm, height 270mm including wheel clearance.

    In theory I could reduce the width further but it will limit my weapon options and I want stuff to...
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    Yep. Hence the trial with ply. Gonna have to be...

    Yep. Hence the trial with ply. Gonna have to be careful of the weight. Doing it this way if I need to narrow it it I can work out the space.

    The height of the back panel and length of the ramp...
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    8084 Just quick update on the chassis mock up....

    8084

    Just quick update on the chassis mock up. Using 12mm ply as it's similar size to the HDPE I have but a fair bit lighter.
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    While I wait for my thicker HDPE to arrive, I...

    While I wait for my thicker HDPE to arrive, I ordered a 79mm core cutter so the hub will be bigger and more solid. Should give more fixing options.

    Going to start on a wooden prototype to make...
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    Absolutely - that would be great

    Absolutely - that would be great
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    30mm HDPE offcut

    Does anyone have a 30mm thick HDPE offcut 100mm by 200mm would be big enough. Or two of 100mm x 100mm
    Need it asap.

    PM me, will pay fair price and any postage.

    Thanks

    Simon
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    The sprockets if ordered turned up. Perfect fit -...

    The sprockets if ordered turned up. Perfect fit - thank goodness.

    Now to mount them...

    The wheel profile does not have an obvious option. My idea was to make a custom mount out of HDPE that...
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    Sounds great! May struggle for the 15th though...

    Sounds great! May struggle for the 15th though as going on holiday a few days later, but as I have family just over an hour's drive from there it will be a nice option for me too.
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    Just catching up on your build and adventures in...

    Just catching up on your build and adventures in Manchester. Took ages so much happened and so many comments.
    It was a shame how hard you got hit, when you are the most prolific contributer to...
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    I was told I'd need to glue them in. Any...

    I was told I'd need to glue them in. Any particular product I should look for - something special a thermal adhesive epoxy or good old super glue?

    I found a suitable sprocket on Robotshop, 48T...
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    Took some pictures of the sprocket. 80528053 ...

    Took some pictures of the sprocket.

    80528053

    So it's a 10T and as you see from the chain picture it fits nicely no issues despite low diameter.

    I will need to order the wheel sprocket soon...
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    Since the last post I have been trying to source...

    Since the last post I have been trying to source parts and get the layout sorted in my head. Unfortunately my son is revising for his exams and he is hogging the laptop, so not had the time I need...
  18. I think only toughened glass would be acceptable...

    I think only toughened glass would be acceptable due to safety concerns. But perhaps using a fishtank or lizard/snake tank frame would be nice option and then retrofitting polycarbonate in place of...
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    I was having a similar experience with mine. I...

    I was having a similar experience with mine. I got some with the idea to build an ant but not had time yet, but when I connect to RX and use the TX to control it the movement seems limited. I'm...
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    I put one of these...

    I put one of these in my Beetleweight - looks cool too!

    FYI - I wired it at the first opportunity after the kill-link, before any other connection. It connects on the first power connector the...
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    I am learning stuff every day! I love this...

    I am learning stuff every day! I love this hobby.

    So a 'dead shaft' would mean the shaft is fixed (not rotating) the sprocket is fixed to the wheel so when the sprocket turns the wheel does too. ...
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    I am currently thinking about a chain drive, if I...

    I am currently thinking about a chain drive, if I can fit a larger sprocket on the motor's drive shaft, I can get a 4 or 5:1 ratio.

    http://www.gearsandsprockets.co.uk seem to have lots of options....
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    I know they're heavy I hope I can get it to work....

    I know they're heavy I hope I can get it to work. Saw a pair forĀ£30 and couldn't resist!
    But I have some drill motors handy too if needed.

    Rough calculations:
    Drives x2 = 4kg (I think the ones...
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    Deathly Hallows - FW - Alligrater

    Next project in the pipeline a featherweight.

    Early stages of design - but rough concept as follows:

    MY1016 drive motors for plenty of grunt
    1/2" thick HDPE wedge body with perhaps an...
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    I would certainly not say anything is safe or...

    I would certainly not say anything is safe or not, as I am not a chemist. You can see here some info https://www.directplastics.co.uk/about_plastics/post/whats-in-those-fumes and make your own...
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