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Front 22.5 degree caster block for the Traxxas Bandit.The stock caster blocks on these vehicles have no angle, and therefore match the chassis kickup angle of 30 degrees. Generally speaking, most newer R/C vehicles are running caster angles of less than 30 degrees - for improved high speed steering response. This has become more necessary with the advent of tracks with greater traction than those in the late 80's/early 90's which could be typically dry or slick/loamy. This caster angle, in combination with the trailing axle design is an easier to drive design, but does not lend itself to an aggressive steering feeling. Try both, you may find that you prefer the original 30 degree. These are also printed, so they may not hold up as well as stock design.You need to mount these so that the angle tilts forward (making the hub flatter). I guess you could increase it to 32.5 degrees if you wanted to, but I don't know why anyone would do that.Some interesting notes, the stock caster blocks actually have a slight interference with the stock steering hubs (15.1 vs 15.4). This is designed to clear the hubs so they should rotate freely (based on the tolerances from my setup).Ream the hinge pin holes with a 1/8" drill bit. Tap the mounting hole with a M3 tap.NOTE: I have not printed and fit this up. This may require some further tuning for appropriate placement in the arms.This is designed for the Bandit only (which has larger hinge pins). If you want to use this with a Rustler/Slash, I would suggest using the other model that I have listed as a remix. Alternatively, you could ream out your hinge pins on the arms to 1/8" - but you would need a new hinge pin as well.
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Click the "View on Thingiverse" button above to visit the original model page on Thingiverse. You can download the STL file directly from the creator's page for free.
This model is compatible with most FDM 3D printers (Creality Ender 3, Prusa MK3S+, Bambu Lab, etc.) and resin printers (Elegoo, Anycubic). Check the original page for recommended print settings and materials.
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Check the license (see original page) on the original Thingiverse page. Most STL files can be modified using free software like Blender, TinkerCAD, or Meshmixer.