• @papacorn In a broad sense bearings are simply rated by load and speed, so as long as they meet the desired criteria they will be fine. It is however worth considering that the spherical bearing housings commonly used, allow the bearing to change orientation a little and so make alignment and assembly much easier than a fixed rigid housing which…[Read more]

  • Yes the RHS frame that the grinder is mounted to slides within the larger RHS mounted to the slide allowing for the grinder position to be adjusted.

    The grinder can also pivot a little on its mounting bolt to compensate for any angular deviation between the wheel and workpiece as the grinder frame pivots.

  • I had some time to mount the grinder today (after I fixed my welder 🙁 ). I ended up having to raise the auger up from in-between the rails of the base as the cutting wheel did not engage deep enough into the workpiece. So I used this opportunity to simplify the ‘nut’ design. It is now a simple round bar sitting across the top of the auger. It…[Read more]

  • @antoinex Good work.

    The CERN license is definitely more appropriate. Specifically the way in which it deals with derivative works. It’s very much like a GPL for Hardware.

    I’m surprised it’s not more widely known / used.
    /DM

  • Nice work. I’ve had some more progress on my own development that I will share…

     

    The second cutting action on the underneath is very important and often overlooked. The first pass through from the top of the blade(s) cuts the plastic up, but it is the second blade underneath that cuts the shards to size so that it can fit through the screen.…[Read more]

  • Yes, I think that any grinder could be made to work. It’s just a case of presenting the workpiece to the wheel in the correct orientation.

     

    I’ll try and make some time this weekend to mount the grinder

  • Ahh cool, the post is fixed 🙂

    Just noticed that the N/C contact on the first line is unmarked, it should be T1

     

     

     

     

  • My plan is to use an angle grinder – either 4 or 5 inch size – just a small hand held one. These are available everywhere. They also mostly all have screw mounts on the sides for the handle (also usually on both sides for left and right handed people), so it should be possible to make a mount that holds it. I plan to hold it in a vertical…[Read more]

  • Cool. One thing that I was planning when I get the time to make the rest of the device is to angle the grinder wheel so that it aligns with the angle of the flights, and also to choose a wheel that matches the width of the channel (if possible). If the wheel is narrower than the desired channel width then the wheel or workpiece will need to be…[Read more]

  • Mick Percy replied to the topic Forum issues in the forum Community talk 2 months ago

    Thanks for the clarification.

     

    I’m going to comment on each of your points.

     

    Recycling – PP is never going to fix the issue of plastics pollution on its own, it is just one contributor in amongst the many that are trying to do something rather than nothing. But why knock someone for trying? It’s a great idea, even if it’s little more than a…[Read more]

  • Mick Percy replied to the topic Forum issues in the forum Community talk 2 months ago

    This is interesting.

    This popped up as the advert at the beginning of the PP video when I watched it.

    https://4ocean.com/

    These guys sell plastic bracelets and invest that money into actual plastics cleanup. How is it that this is possible? Just look at the infrastructure these guys have. Boats, cars, ocean vessels, geesh, that’s a lot of…[Read more]

  • Mick Percy replied to the topic Forum issues in the forum Community talk 2 months ago

    If you’d build that stuff for their users you may start understanding

    Not sure what you mean.  I sense a lot of contempt in the way you talk about the PP project, but I am yet to understand why.

    After watching the video and reading the comments there’s a few things that stand out to me…

     

    – I think that they have done quite a lot with the 15…[Read more]

  • Mick Percy replied to the topic Forum issues in the forum Community talk 2 months ago

    I have yet to watch the video where they explain what they have done with the first half of their funding, Maybe I should. Maybe that would cause me to judge (I’m sure I will have an opinion lol).
    Of course everyone has perfect clarity of vision in hindsight. It is very easy to be critical of the work of others, but the truth is that given the…[Read more]

  • Mick Percy replied to the topic Forum issues in the forum Community talk 2 months ago

    Managing any project is easy, if you know how. It just takes a few simple tools and a few basic management strategies, but project direction does need some vision & direction to set the path, and this usually comes from above.
    I actually think that the project direction for PP is not too bad, they are trying to overcome the shortcomings with a…[Read more]

  • Mick Percy replied to the topic Forum issues in the forum Community talk 2 months ago

    Yeah I’m just ranting. It’s not my project, they can do as they please. But it is a shame to see so much energy being wasted on something that is essentially unnecessary. Seems like a lot of misplaced effort to me.

    I don’t really see the value in these project kamp / one army / phoneblox / story hopper / etc projects. PP has really struck a…[Read more]

  • Mick Percy replied to the topic Forum issues in the forum Community talk 2 months ago

    Actually, I’ve just taken a look at the GitHub repo for OneArmy. They are indeed trying to fix this issue, but the solution is basically scratch writing an entire platform. That path is folly. Been there. Done that. The amount of time that is needed to maintain a custom platform like that is immense. It’s a full time job and a management…[Read more]

  • Mick Percy replied to the topic Forum issues in the forum Community talk 2 months ago

    s2019

    creating offline and pasting in any significant content is what I’ll do going forward.

    I already do this, it’s force of habit, the issue is when it doesn’t post correctly. WordPress detects your second attempt at trying to post the same content as a duplicate post and refuses to post it. It is a ‘feature’.

    plastichub
    Not sure I u…[Read more]

  • Mick Percy started the topic Forum issues in the forum Community talk 2 months ago

    On numerous occasions I have posted replies to topics that have not displayed. It gives me no error message, no indication of what the issue is, nothing. I have then tried to repost only to be told that I have already posted the same thing. This is getting pretty frustrating. I’m at least 110% sure I am not alone in this issue.
    I’ve just spent…[Read more]


  • Most inverters have programmable outputs. You can use this with simple relays to create automatic reverse function. There should be the possibility to trigger an output at a defined torque or current level. You can use this to monitor if the motor has stalled.

    Here is how to make it work…

    Program inverter output to switch at defined…[Read more]

  • Is delrin a thermoplastic? could be a good way to create the nut if it can be molded.

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