Add a Custom Print Speed Percentage Option Alongside Existing Presets

Currently we have the Silent, Standard, Sport and Ludicrous speed presets, which work well and should remain exactly as they are.

I would like to request an additional “Custom” speed option that allows the user to enter a percentage manually (for example 75%, 90%, 105%, 110%, etc.).

Some examples where this would be useful:

  • Slowing a print down for the first layer and first few layers, then increasing the speed slightly once adhesion is confirmed.
  • Increasing print speed by a small amount (e.g. 5% or 10%) where Sport mode is too large of a jump.
  • Fine-tuning print speed for difficult materials or large prints without having to edit the print profile.
  • Reducing print time slightly while staying within the capabilities of a particular filament.

The existing presets should remain available as one-touch options, but a Custom button would provide much greater flexibility for users who want to make smaller adjustments during a print.

Suggested implementation:

  • Keep Silent, Standard, Sport and Ludicrous unchanged.
  • Add a Custom option.
  • Allow entry of a percentage value (for example 25%–200%) or provide a slider.

This would be a simple quality-of-life improvement and provide much finer control than the current fixed presets.

I like this idea. I’d like to see this on bambu studio, handy, and also on the device screen.

I would also love to have options like the “sport” setting available to save as a preset.

I print a lot of TPU material and the best setting I’ve had so far for clean prints, is some adjustments to filament settings, but also using the “sport” speed mode.

I tried to mimic this by saving a custom “process”. Adjusting speeds and accelerations by 124%. But it didn’t increase the speed any. Must have been capped by the volumetric setting. Increasing the volumetric setting allowed speed to increase, but print quality went back down. i also tried modifying the g-code with M220 S124, added in several places) but again must’ve been capped, and no change.

Every printer I’ve ever used except for Bambus allows me to tailor the print speed mid-print by finer increments. In particular, slowing down by 20% if the machine has een pushed too far (whic ONLY becomes apparent mid-print if one has not calibrated for new materiasl) would be crucila. How hard can this be???