Bonus ToleranceWhy a hole made away from its worst size earns extra position tolerance.Mechanical EngineeringAt maximum material condition, a feature madeaway from its worst size earns extra positiontolerance.Bonus = difference from the MMC size · total = stated + bonusHole 10.0 to 10.5MMC is 10.0Least clearance.Hole made at 10.3Bonus is 0.3The hole is bigger.Stated position 0.2Allowed 0.5 total0.2 plus 0.3.THE COMMON MISTAKETaking MMC as the largest size of every featureMMC is the most materialFor a hole the most material is the smallest hole. For a shaft it is the largestshaft. Getting it backwards inverts the bonus.Bonus applies only where the drawing calls MMC on the tolerance.Educational reference; ASME Y14.5 governs.Bonus Tolerancelearnposters.com
Bonus Tolerance — printable engineering wall chart from LearnPosters. Free vector PDF, US Letter and A4.

What’s on the Bonus Tolerance poster

The rule, 3 worked examples, and the mistake everyone makes.

Bonus applies only where the drawing calls MMC on the tolerance. Educational reference; ASME Y14.5 governs.

Questions about the Bonus Tolerance poster

What’s on the Bonus Tolerance poster?
The rule, 3 worked examples, and the mistake everyone makes. At maximum material condition, a feature made away from its worst size earns extra po…; Bonus = difference from the MMC size · total = stated + bonus; Hole 10.0 to 10.5 = MMC is 10.0; Hole made at 10.3 = Bonus is 0.3; Stated position 0.2 = Allowed 0.5 total; Common mistake: Taking MMC as the largest size of every feature → MMC is the most mat…. Bonus applies only where the drawing calls MMC on the tolerance. Educational reference; ASME Y14.5 governs.
Who is the Bonus Tolerance poster for?
Bonus Tolerance belongs to the Mechanical Engineering section rather than to a school year, because engineering is not something one grade owns. Anyone learning cad & drawing can pin it up — a beginner, a student mid-course, or someone revising years later.
When should you use the Bonus Tolerance poster?
Reading or writing a position tolerance called at maximum material condition. A wall chart earns its place by being glanceable from where the work is happening, so Bonus Tolerance belongs on the wall where that engineering work actually happens, within glancing distance, rather than filed away.
What other posters go with Bonus Tolerance?
Assembly Drawings, Auxiliary & Detail Views and Choosing Views sit alongside Bonus Tolerance in the Mechanical Engineering section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Assembly DrawingsAuxiliary & Detail ViewsChoosing Views
Is the Bonus Tolerance poster free to download and print?
Yes. Bonus Tolerance downloads as a free PDF with no account, no email and no watermark, like everything else in the Mechanical Engineering section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
What size does the Bonus Tolerance poster print at?
Bonus Tolerance is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Bonus Tolerance loses nothing.Printing guide

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