JVAN technical journal

Airsoft Gearbox Guides & Technical Articles

Practical guidance for comparing gear ratios, checking V2 and V3 compatibility, selecting supporting bushings, and planning dependable airsoft gearbox builds.

AEG Air Volume: Match the Compression Assembly

AEG Air Volume: Match the Compression Assembly

By JVAN PRECISION0 comments
An AEG does not gain consistent compression from one part alone. The piston head, cylinder, cylinder head, nozzle, bucking and barrel must work as a matched system. Before buying parts, find the leak or...
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AEG Cylinder Polishing: Inspection and Safe Limits

AEG Cylinder Polishing: Inspection and Safe Limits

By JVAN PRECISION0 comments
Cylinder polishing is not a default AEG upgrade. First clean and inspect the cylinder. If the surface is coated, plated, deeply scored, out of round or otherwise damaged, replacement may be safer than removing...
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AEG Gear Ratio Tuning Checklist

AEG Gear Ratio Tuning Checklist

By JVAN PRECISION0 comments
This checklist starts after you understand the basic meaning of AEG gear ratios. For the full explanation of 12:1, 13:1, 16:1, 18:1 and the JVAN 100:200 notation, read the main AEG gear ratio guide....
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AEG Pistons: What to Check Before an Upgrade

AEG Pistons: What to Check Before an Upgrade

By JVAN PRECISION0 comments
An AEG piston is the moving body that carries the tooth rack engaged by the sector gear. It is separate from the piston head. Material alone does not determine whether a piston suits a...
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Helical Airsoft Gears: What Must Be Checked

Helical Airsoft Gears: What Must Be Checked

By JVAN PRECISION0 comments
Helical gears use angled teeth instead of the straight tooth form seen on many AEG gears. That changes the contact pattern between mating gears and can introduce axial loading. A helical set therefore has...
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AEG Gearbox Bushings: What to Measure and Check

AEG Gearbox Bushings: What to Measure and Check

By JVAN PRECISION0 comments
A gearbox bushing is a plain support for a gear axle. It is not the same component as a ball bearing. Before choosing a replacement, measure the gearbox-shell opening and inspect the gear axle,...
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How to Rewire an AEG Safely

How to Rewire an AEG Safely

By JVAN PRECISION0 comments
Rewiring an AEG is an electrical repair, not a universal performance upgrade. The new circuit must match the gun’s battery, motor, trigger or electronic control unit, connector and available routing space. If the existing...
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