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Cake day: July 1st, 2023

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  • From what I’ve seen, middle of the road 300 mm Voron V2.4 kits are around $1300. I believe the lowest I’ve seen was around $950, excluding printed parts (which the same company was selling separately for over $200). When I tried compiling a BOM with self-sourced high quality parts, the total reached over $1700 before I gave up on that idea. Where have you seen $600 kits? If these are still available, I may consider one. However, I’m hesitant to go with a kit that may have lower quality components. Personally, I’m really excited for this new Prusa and will probably pick up a kit once they are available. Unless, of course, Vorons are really that affordable.



  • This is not their first core XY and they redesigned the hotend with the PrusaXL and MK4. As far as I’ve seen, they are the only printer company using a strain gauge in the hotend for bed leveling, that they also use for detecting clogs while printing. Also, the new printer’s price is comparible to the similar model from Bambu with a metal frame and enclosed print bed (X1C). And, as you pointed out, they always maintained the same serviceability (I’ll add upgradability). Therefore, I definitely don’t agree that they are playing catch up.









  • From your source:

    {The upper flow is faster and from Bernoulli’s equation the pressure is lower. The difference in pressure across the airfoil produces the lift.} As we have seen in Experiment #1, this part of the theory is correct.

    Sure, it might be more complicated and there are other forces at play. Also, top and bottom air molecules may not reach the backside of an airfoil at the exact same time, but that doesn’t diminish the effects of this pressure differential on lifting force.


  • That lift explanation is innacurate/incomplete. While there may be some equal and opposite forces depending on the angle of attack, the primary reason for lift is due to Bernoulli’s Principle. Airfoils have a rounded upper surface with a longer path for air to take, relative to the underside. This requires air to move at a higher velocity over the top, and since A1 x V1 x P1 = A2 x V2 x P2, pressure over the airfoil decreases. It is this pressure differential that creates lift.

    In regards to aircraft, Newton’s third law of motion applies to thrust from a propeller or jet engine.