Go-Kart Tubular Steel Chassis

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Bounding box: 1344.0 × 608.0 × 101.0 mm
Engine: Precision B-rep
Parameters: 25
Published: November 12, 2026

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The prompt

Go-kart tubular steel chassis, units mm. X is length (rear X=0, front X=1350), Y is width (centered at Y=0), Z is up. Frame touches Z=0 and is symmetric about Y=0. One continuous hollow steel tube, 28 mm outer diameter, 2 mm wall, tube axis at Z=14. Open at the rear, closed at the front. Path of the axis, left side: (0,290) straight to (707,290), then to (1010,155), then to (1170,280), then to (1330,145), then a straight nose tube across to (1330,-145). The right side mirrors it back to (0,-290). Every bend has 52.16 mm radius. From X=1090 the tubes rise at 20 degrees up to +73 mm at the nose (Z=87). Add one 28 mm cross tube at X=773 from Y=-260 to Y=260 at Z=14. Add one 28 mm inner rail on the right side at Y=-210, Z=14, from X=140 to X=773. Add one 22 mm diagonal bar at Z=14 from (436,276) to (255,-210), at 110 degrees to the rail. Export as STEP.

Parameters

Name	Value	Range
Tube OD (28 mm tubes)	28 mm	16 – 60
Tube Wall	2 mm	1 – 8
Tube Axis Height Z	14 mm	6 – 80
Bend Radius	52.16 mm	10 – 120
Half Width (side rail Y)	290 mm	200 – 420
Straight Side End X	707 mm	400 – 1000
Cockpit Narrow X	1010 mm	800 – 1250
Cockpit Narrow Y	155 mm	60 – 280
Knee X	1170 mm	900 – 1300
Knee Y	280 mm	150 – 400
Nose X	1330 mm	1100 – 1600
Nose Corner Y	145 mm	60 – 280
Nose Axis Height Z	87 mm	14 – 250
Nose Rise Start X	1090 mm	800 – 1250
Cross Tube X	773 mm	400 – 1200
Cross Tube Half Length	260 mm	100 – 300
Inner Rail Y	-210 mm	-300 – -60
Inner Rail Start X	140 mm	40 – 400
Inner Rail End X	773 mm	400 – 1200
Diagonal OD	22 mm	12 – 40
Diagonal Wall	2 mm	1 – 6
Diagonal Start X	436 mm	200 – 800
Diagonal Start Y	276 mm	100 – 340
Diagonal End X	255 mm	100 – 600
Diagonal End Y	-210 mm	-300 – -40

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.

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