04 Spec Sheets
Measurements · Drilling · Records
4.1 — Terminology & Concepts
4.1.1 Acronyms Used in Spectre Cloud
📐 Acronyms Used in Spectre Cloud Beyond the three primary span type acronyms, Spectre Cloud uses...
4.1.2 Span types explained: F, C, O, H
4.1.2 concept The span type setting on a Spectre Cloud spec sheet defines the measurement conv...
4.1.3 Grip type definitions: Finger Tip vs. Conventional
4.1.3 concept A bowler's grip type defines how deeply their fingers are inserted into the ball...
4.1.4 Pitch terminology
4.1.4 concept Pitch is the angle at which a finger or thumb hole is drilled relative to the ba...
4.1.5 Bridge: standard bridge sizes and their purpose
4.1.5 concept The bridge is the distance between the near edges of the middle and ring finger ...
4.1.6 Insert OD: drill bit sizing for STD and VACU grips
4.1.6 concept When drilling finger holes for bowlers who use inserts, the drill bit must match...
4.2 — Creating a Spec Sheet
4.2.1 Creating a blank spec sheet for a bowler
1. Access Bowler Profiles Click "Bowlers" to open the list of bowler profiles in Spectre Prosh...
4.2.2 Naming a spec sheet
4.2.2 step-by-step When you create a new spec sheet, Spectre Cloud lets you give it a plain-En...
4.2.3 Selecting grip type on the spec sheet
1. Access Bowler Section Click "Bowlers" to open the bowler management section in Spectre Pr...
4.2.4 How to identify the type of grip from measurement sheet
4.2.4 step-by-step Before entering span and pitch measurements, you need to identify which gri...
4.2.5 Cloning a spec sheet
4.2.5 TIP step-by-step When you need to make an adjustment to an existing fit, and you want ...
4.2.6 Printing a spec sheet
4.2.6 TIP step-by-step Once a spec sheet is complete, you can print it directly from Spectre...
4.3 — Span
4.3.1 Entering span measurements (F, C, O, H)
4.3.1 step-by-step Span measurements define the distance between the thumb hole and each finge...
4.3.2 The four span types: F, C, O, H
4.3.2 concept Spectre Cloud supports four span types — Full Span (F), Cut to Cut (C), Outer to...
4.3.3 Ring finger 5/16" rule
4.3.3 measurement The ring finger span is often derived from the middle finger span rather t...
4.4 — Finger Measurements
4.4.1 Round finger holes, no inserts
1. Select Customer Account Click and select the bowler 2. Hole size Click on hole size ...
4.4.2 Finger inserts
4.4.2 measurement When a bowler uses finger inserts, the spec sheet needs the insert type, the...
4.4.3 STD vs. VACU
4.4.3 concept Finger inserts seat in one of two ways — STD (Standard) or VACU (Vacuum). The in...
4.4.4 Oval fingers, no inserts
4.4.4 measurement For a bowler who wants an oval finger hole without inserts, Spectre Cloud ...
4.4.5 Inputting pitches
4.4.5 measurement Finger pitch is entered directly into the pitch tiles surrounding each finge...
4.4.6 CLT (Center Line Transformation)
4.4.6 measurement CLT (Center Line Transformation) is a fitting measurement that captures ho...
4.5 — Thumb Measurements
4.5.1 Selecting the thumb hole shape (Round or Oval)
4.5.1 thumb The thumb is the largest hole on the ball and the primary control point for the re...
4.5.2 Entering thumb hole size
4.5.2 thumb For a round thumb, the hole size is a single value entered on the spec sheet. The ...
4.5.3 Entering vertical and lateral pitch for thumb
4.5.3 measurement Thumb pitch works exactly like finger pitch — you enter it into the pitch ...
4.5.4 Thumb insert type and size
4.5.4 thumb Many bowlers use a thumb slug or thumb insert rather than a bare thumb hole. This ...
4.6 — Oval Thumb
4.6.1 Selecting an oval thumb: starting bit, oval width, oval degree, and taper
4.6.1 oval An oval thumb hole needs four inputs beyond the standard thumb measurements. Togeth...
4.6.2 Entering the oval inputs (step-by-step)
4.6.2 oval This page is the step-by-step companion to 4.6.1. The four oval inputs — starting b...
4.6.3 How the system calculates the oval cut from your inputs
4.6.3 oval Once the four oval inputs are entered, Spectre Cloud calculates the drilling instru...