Compiled printable upgrades

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Is there a compiled list of the best 3d printable upgrades for this printer? I'm looking at bringing it online to add to my print capacity during the current situation, and I was thinking of having my other printer make upgrades while I'm assembling and calibrating this one.

In particular, I have a preference for stuff that I can hopefully make out of PLA and attach without having to order additional parts for now. I do have some screws, but I'm not sure they'd be the right size.

Second priority would be starting at the low cost end of upgrades that I would need to order parts for and move up. In particular, I think at the very least the z axis end stop sensor is faulty and needs a replacement so the nozzle doesn't keep ramming into the build plate.

These are the upgrades I have tried and would advise. There are a bunch of things I have designed myself, did not get round to publishing them here (yet?). Note that this is not the order in which I installed them.

  1. always have the fan on the heater running. It is not the cooling fan it looks to be.
  2. the filament holder: the machine is too flimsy for the friction it causes. Print a spacer [1] (I did not have much luck with that) or print a new one [2];
  3. upgrade the Z-axis, either by printing something to stick on top [3] which has moderate success or by printing a new connector with bearings and all in it [4] which is better. I did have to bump the voltage on the Z-axis a TINY bit so it would not skip.
  4. bearings and rods: my rods were bent, I god sliding bearings but I think you could go with 3d printed bearings too! The original bearings are bad for me (not sure if this is due to use).
  5. fan, I created a part for a 50mm fan because that's what I had and they push okay. These produce nice output. Printed in ABS in a few iterations [5], did not simulate air-flow yet but it feels very very uniform.
  6. better spacing for the carriage belt [6]. (might be worse here due to my heated bed setup?)
  7. better power supply (mainly for the next step, I did not notice the power supply to drop voltage more quickly than my current one, but you will need headroom for the next step. Comparing a pre-2000 Power Supply Unit with a new Chinese 3D printing unit, I saw no difference in voltage drop (there is voltage drop when the heated bed powers, it's just the same drop). Old capacitors go bad so it is wise to get a new PSU.
  8. heated bed and glass printing panel. I got this early on, tried various electronic components to control the heat outside of the board, ended up using the original board for heating it and it worked fine for me. Either I was lucky with my board, or it can handle it just fine.
  9. extra fan on the board. They say the board is rubbish. I can't evaluate. I did add a stand-alone 40mm fan with bat-cave look [7].
  10. new RAMPS board. These are fairly cheap. I upgraded the steppers too.
  11. Upgrade some plastic parts before they break [8] (you can do this whenever you'd like, as long as it prints nicely). Did not change the clips holding the bed, but they are flimsy too.
  12. Upgrade the extruder [10] (did not notice a huge difference to be honest, but did not push the old one either.

Next steps for me:

  • I am going to check the effect of a different print head (fake E3D) still (got a wrong temperature sensor so it has to wait)
  • will hopefully (not but likely) try to finish the design of and ABS print the carriage for the heated bed at some point [9],
  • convert to a Bowden setup and compare (I have the parts but this is not a priority at all),
  • get a completely different extruder for the bowden comparison.

[1] https://cad.onshape.com/documents/538aa1f430bd8585ee358023/w/ae4915a7d6f5f81f2fcb473d/e/84612c2507fc3649dacab371
[2] https://cad.onshape.com/documents/c71749d564f24d73fa79da76/w/d9eeb1fd0d2ab02aa5d767d7/e/05676a7b490eae11f95005a8
[3] https://www.thingiverse.com/thing:1210643
[4] https://www.thingiverse.com/thing:2527890
[5] https://cad.onshape.com/documents/732c5de5efb654eff2e30329/w/48833a671c834ff6ea7c90fd/e/533bd87a302902fcc06da8c3
[6] https://www.thingiverse.com/thing:1586578
[7] https://cad.onshape.com/documents/6c07257a8dedd96bba5c8b3b/w/8b6196e6f7596290f4157f46/e/28bb7275e2291c3b71356bd7
[8] https://www.thingiverse.com/thing:1586712
[9] https://cad.onshape.com/documents/ba964535fa77cecbb1c525ec/w/881c12dd169f06b728c7fd04/e/5fb9fade411c5b4e5abc2943
[10] https://www.thingiverse.com/thing:1548736

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