Sorry about this. FDM printers sometimes struggle with printing holes of this small. When this happens, I usually wrap a small amount of masking tape around the shaft. This will increase the diameter enough to center it.
I fixed it. Thanks for spotting the error!
You could modify the files to use metric dimensions if you desire, but I most likely will not. I have already poured over 50 hours of work into this project and I am still consumed with the power issues. I got these brass tubes from a local hobby store. I would have bought the tubes in metric dimensions if I could trust amazon, but alas, there are too many reviews saying "this came too wide" or "this came too short." It was easier to determine their functionality when I could test it before buying. Why are you unable to have the tubes delivered?
Thanks to the helpful explanations from parallyze and Jan5412, this now works with the 9V battery on the VIN. A small edit to the code was required, which has now been uploaded. Thanks parallyze and Jan5412!
The VIN pin does not work. I have tested it. Is there a way to lower the voltage to just above 5V?
You can use a program that continuously rotates the motor. Here is an example of that code.
Very interesting, I created an alternate version of the part, which is listed in step 4.
USB plugs output 5V. The clock requires 9V to run. I have tested this multiple times, it cannot run on 5V. In step 15, I have added a photo showing the connections to the battery, which should help. I'm looking for a power source that connects to a standard wall outlet and has an output of 9V.
To be honest, i'm not the best at circuits. I do encourage you to explore on your own, but I only have but so much time. I tried VIN and it didn't work at all, so i'm going to stick to what i've got.
I would highly recommend the MP Voxel as almost no assembly is required out of the box. But you should read the article I posted a link to. Deciding what printer to buy is your choice.
Triangulum - 3D Printed 3-Hand ClockView Instructable »
Here is a modified version of the code, i'm not sure if it works any better but you're welcome to try. Please let me know what happens.
Well, as it turns out, the ratios of the gears within the motor are quite arbitrary and produce a terrible ratio (between 63 and 64 with many decimals). Therefore, it is impossible to properly use this motor. After some calculations, I discovered that the clock is behind by .02 seconds each second. I thought that the timing from my watch was accurate, but apparently not. My best advice is to learn more about the motor or use a different one. It’s the best I can do. Thank you.
Lego RC Tatra 815-7 8x8
Lego RC Tatra 815-7 8x8View Instructable »
Originally that was the plan, but the rings work just fine with the rollers glued in.
I'm sorry, but I don't think I could make much of an explanation other than this. I used stretched spheres to make the front. I used mostly boxes and cylinders to make the frames. And I used wedges cylinders and boxes to make the tail parts. You make copy my tinkercad design and ungroup the shapes if you would like. This is the best I can do, thank you for your interest.
No problem! Glad to see it worked out for you!
I might, but I tried to make a very small one. That's why I struggled.
You have it built correct. Are you sure it rotates wrong? Try running it for 15 minutes and take a picture before and after. See how that works. I have included an edited version of one of your photos showing the rotational directions of the gears. In my photo, you see the two rings rotate clockwise.
Could you please send me some photos of the clock? I need to see why the hands rotate wrong. My best guess is you built it wrong, because it works fine for me. Thank you.
Nice. I tried to build a quadcopter a while back, never finished it though.
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Cool! Might make my own hovercraft one day.
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RC Helicopter Made in Tinkercad
RC Helicopter Made in TinkercadView Instructable »
Thanks. Please post a make when you're finished.
50t-10t should be replaced with 30t-10t24t-10t should be replaced with 30t-24t50t-12t should be replaced with 50t and 12 #2If you need anymore help, let me know.
All updates for the clock are complete. You may look through the instructable to see what has changed. I look forward to seeing how it turned out for you.
Nice work. The idea for the button is good, and I will consider that when I learn more about ardiuno. All updates for the clock are complete. You may look through the instructable to see what has changed.
I set the time by running a program that just rotates continuously. Yes, there are other ways to do this, but keep in mind that I have never made anything like this before. This project was mostly learning for me.
I see the problem, and it will take a long time to fix. I am going to post this to thingiverse when i'm done fixing it. For now I suggest that no one build this. Sorry for the problem.
3D Printed Holo Clock With Arduino
There are videos in steps 2 and 13.
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Added large roller stl. Fixed the names. Frame D is the same as frame C, but I changed it. So go reread that step. Thank you so much for helping me fix my instructable.
You are quick! I'm excited to see how it turns out.
Thank you for noticing. Roller shaft x6 stl has been added.
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So sorry, updated to include the cases.
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You are correct about the boards, but I used what I had. I think i'll update it in the future.
You are absolutely correct. I only used brass tubes because it's what I had, and also it is very easy to cut. I found these tubes in a hobby store while and thought they would be useful in the future. I would have used a 3mm tube or shaft if I had one.
I am very new to using circuits, but I have been thinking of using a Arduino Nano. Though I will consider using that board once I learn more. Thank you.
I tried what you said and when I uploaded the sketch, it rotated forward then backward continuously rather than rotate in one direction. This part of the program tells it which way to rotate at the end of a cycle, so if both direction 1 and 0 are set to ++, the shaft of the motor will rotate in one direction.
3D Printed Holo Clock With ArduinoView Instructable »
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What is the exact time elapsed after a 360 degree turn of the stepper motor?
You should try making a biplane, I think that would look cool. Keep up the good work!!
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AMAZING!! Never seen such a clever use for recycling ;)
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Nice job!! Very creative costume.
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