#Mini orbiter planet mods
#Mini orbiter planet plus

But from an engineering perspective, Sherpa Mini is far more optimal. The real torque edge Orbiter has over the Sherpa Mini at the same speed, rather than the same RPM is in the single digit percentages, while causing all sorts of added negatives.ĭon't get me wrong here, I have both running and love both. Oh, and we use 36/48V steppers on 24V supplies, which makes this loss of torque over the rpm range even worse.Īnd the added issue is more heat due to higher average operating RPMs.Īnd then there's inertia in the motor, higher rpm means more inertia, means more power needed for acceleration/deceleration/direction reversals, means less usable torque and more heat.Īt the exact same RPM, Orbiter has like 10-15% higher torque because of its 7.5 gear ratio, but at the same output speed, Orbiter has to run faster, causes more heat, uses more power and by getting into higher RPM ranges loses a chunk of that torque advantage. This gives you less predictable torque, which isn't great.

This causes the Orbiter to be unnecessarily stronger at low RPM (nobody has trouble extruding at low speed) and progressively getting weaker the faster it goes. The higher you go into the rpms the more torque you loose.

Steppers are characterized by fast movement and high torque, at low rpm. So any advantage the Orbiter may have does not come from using a planetary gearbox, but from using 7.50 as its gear ratio.Īnd the advantage of that is heavily debated as the higher gear ratio makes the stepper move higher into the RPMs and higher RPMs on steppers are not good. Orbiter with it's planetary gearbox is setup for a 7.5 reduction. On a 10 gear motor a reduction of 5 (it uses the default 50 tooth BMG wheel). The Sherpa Mini with an 8 gear motor has a 6.25 reduction. What matters for grip is how well the pressure mechanism works that pushes the geared wheels together, it's entirely independent from the gearbox used. What matters for power and speed is the gearbox ratio you may use produces, a gearbox ratio can be achieved with any kind of gearbox. Orbiter loses in every respect there because of its use of the planetary gearbox.

#Mini orbiter planet plus

The planetary gearbox plus and downside has nothing to do with power, speed or grip.īoth extruders have a gearbox, what kind it is doesn't matter for power, speed, grip or anything like that, the gearbox types only values are how light it allows you to be with a given gear ratio and how low wear and easy maintenance are. Not per se in the eventual result (although those are still heavily debated), but in why each has their strength and weakness. However, the Sherpa mini can move faster because of its lower weight. So I know that, because of its planetary gear, the orbiter can grip filament better and extrude it faster. Non-reddit communities are listed in our getting started guide We welcome community contributions to this wiki! Related Communities

#Mini orbiter planet mods

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