2.3.5 Oval Cut 'Move' Direction — V/H, H only, V only, or None

Oval Cut 'Move' Direction — V/H, H only, V only, NONE

2.3.5   oval

The Oval Cut MovementMove Direction setting controls which directional components of an oval cut Spectre Cloud calculates and displays.displays when outputting oval cut values. Depending on your drill press type and drillinghow technique,you cut ovals, you may work with both vertical and horizontal movement, one direction only, or prefer to handleenter movementthe values outsidemanually ofwithout Spectrethe Cloudcalculator's entirely.guidance. This setting ensures the oval calculator output matches exactly what your press needs.

🔄 The Four Options Explained

V/H

—Verticalandcalculatesdisplaysboth

Option	WhatHorizontal Spectre Cloud Displays	Bestand For
V & H	Boththe vertical (V) and horizontal (H) movement values	Pressesneeded to cut the oval along the hypotenuse of the desired triangle. This is the standard method for most drill presses with independent X/Y axis control;digital fullreadouts. oval specification needed
V Only	Vertical movement value only	Presses that move in one axis; drillers who handle horizontal manually
H Only	Horizontal movement value only	Presses that move in one axis; drillers who handle vertical manually
None	No movement values shown	Shops that calculate movement independently or use a tethered device that receives values directly

Note: This setting affects what is displayed in the oval calculator output — the underlying oval width calculation is performed in full regardless of which direction option is selected. Switching options at any time will not affect saved spec sheet data.

📐 Understanding Vertical vs. Horizontal Movement

When drilling an oval hole, the bit must travel beyond a simple round cut in one or both directions. Spectre Cloud breaks this movement into two components:

• ✅ Vertical (V) — movement along the axis running toward and away from the bowler's wrist (up/down the ball when positioned on the press). This corresponds to the forward/reverse pitch direction.
• ✅ Horizontal (H) — movement along the axis running across the span, toward or away from the adjacent finger hole. This corresponds to the lateral direction.
• ✅ Together,The V and H values are the two sides of the right triangle formed by the oval cut path — together they define the full shape and orientationdirection of the oval cut.

Note: The exact axis orientation depends on how your drill press is set up and how the ball is positioned. Confirm V and H axis assignments with your press documentation if you are unsure. ⚠️ Verify with your Spectre team: confirm the standard V/H axis convention used within Spectre Cloud's oval calculator.

🛠️ Changing the Oval Cut Movement Direction

1. Navigate to Settings from the top menu.
2. Locate the Bit/Edge Settings section.
3. Find the Oval Cut Movement Direction option.
4. Select your preferred option: V & H, V Only, H Only, or None. ⚠️ Verify with your Spectre team: confirm whether this is a dropdown, radio button group, or segmented control.
5. The change takes effect immediately in the oval calculator. ⚠️ Verify with your Spectre team: confirm whether this setting auto-saves or requires an explicit save action.

🖥️ How Each Option Affects the Oval Calculator Display

The oval calculator output panel updates in real time based on this setting. Here is what to expect for each option:

• ✅ VThe &most Hcommon setting for standard drill presses with digital readouts
• ✅ Full oval specification — theboth outputaxes shows two movement values side by side, onedisplayed for eachevery axis.cut
Use
• ✅ thisRequired when your press requiresneeds both figures to execute the cut.cut sequence
• ✅ VMatches Onlythe cut tables shown in the four scenarios on page 2.3.2

H — Horizontal only

Spectre Cloud displays the horizontal (H) movement value only. Used mostly when you have an Ovalmatic press or similar equipment where you can swing the ball to a desired degree on the vertical movementaxis. valueFrom there, you cut in one direction only — horizontal — and the oval shape is shown.achieved through the combination of the swing angle and the single-axis cut.

• ✅ Designed for Ovalmatic-style presses that swing the ball to set the vertical component
• ✅ Reduces displayed values to only what your press needs
• ✅ The horizontalV component is calculated internally but not displayed,shown
reducing

visual

V clutter— Vertical only

Spectre Cloud displays the vertical (V) movement value only. The mirror of H only — used for presses that onlyoperate needon onea single vertical axis value.for oval cuts, where the horizontal component is handled separately or is not required.

• ✅ For presses that cut ovals on a single vertical axis
• ✅ The H Onlycomponent is calculated internally but not shown

None — mirrorManual ofinput

V

No Only; only the horizontal value is surfaced.

✅ None —directional movement values are hiddendisplayed by the oval calculator. This option allows you to manually input your cuts and bypass the oval calculator's directional output entirely. The oval width isand degree are still shown;used onlyfor reference, but Spectre Cloud does not output V or H values — you determine and enter the directionalcuts breakdownyourself.

is

suppressed.
• ✅ For experienced drillers who prefer to work from their own calculated values
• ✅ Useful for tetheredshops using external reference charts or custom cut tables
• ❌ You do not benefit from Spectre's automatic V/H calculation in this mode

📊 Quick Reference

Press Type / Workflow	Recommended Setting	Reason
Standard drill press setupswith whereX/Y digital readouts	V/H	Both axes needed — Spectre calculates the full V and H move sequence
Ovalmatic or swing-style press	H or V	Ball is swung to set one axis — only one directional value needed from Spectre
Manual entry, external charts, or custom cut tables	None	Bypass the calculator output and enter your own values

📐 The Math Behind the Cut Directions

Spectre Cloud sendsuses valuesthe directlyoval difference (Oval Width – Starting Bit) as the hypotenuse of a right triangle, and the oval degree as the angle. It then applies trigonometry to determine the precise V and H displacement for each cut:

• The V value is calculated using the sin of the oval degree applied to the device, or for shops that use printed reference cards for movement.difference.

The

🔌H Tetheredvalue Drillis Presscalculated Considerations

using

Ifthe yourcos shopof usesthe oval degree applied to the difference.

Spectre displays cuts in 32nds at most — cutting in 32nd increments produces a tetheredsmooth drilloval presshole connectedwith tominimal Spectrechatter Cloud,on the movementball surface.

No matter which direction setting mayyou interactuse, withSpectre howalways valuescuts arein transmitteda tolinear direction from the device.top Consultof yourthe tetheringoval setupmoving documentationtoward tothe confirmbottom, whichminimizing axestable yourmovement pressfor expectsgreater totime receivesavings and setconsistency.

this option

Note: accordingly.All ⚠️four Verifydirection withsettings your Spectre team: confirm whetherproduce the tetheringexact systemsame sendsphysical V,oval H,hole. or both regardless of this display setting, or whether thisThe setting alsoonly controls what is transmitted.

displayed

on
• ✅screen Tethered presses: confirm axis transmission behavior with— the Spectreunderlying team before changing this setting mid-season.
• ✅ Non-tethered presses: change freely — thiscalculation is aalways display-onlyperformed preference.
in

full.

☁⚙️ Scope ofChanging This Setting

1. Open Spectre Cloud at cloud.spectrebowling.com and log in.
2. Select Settings from the menu.
3. Navigate to the Thumb Hole Preferences section.
4. Locate the Oval Cut 'Move' Direction field and select V/H, H, V, or None.
5. Changes are saved automatically.

ThisNote: Like all system defaults, this setting iscontrols storedonly the pre-selection on new spec sheets. It can always be changed on a per-sheet basis without affecting your shop default.

🎬 See It in Action

Watch Mark Buffa walk through the full oval cutting process including how V and H cut values are used at the accountpress: levelHow to Cut an Oval Thumb! | Full Pro Shop Tutorial!

For the complete tapering process and syncsa acrossdeeper look at how the oval calculator generates cut values: Oval Calculator — Tapering Process

A full reference presentation covering all devices,four consistentoval withcut otherscenarios, Bit/Edgethe Settingsmath preferences.behind ⚠️the Verifycalculator, withand yourdetailed cut direction diagrams is attached to page 2.3.2: Cutting Ovals — Spectre team:Pro confirmShop per-user vs. per-account/shop scope, consistent with findings from 2.3.3 and 2.3.4.Software.

Related Sections

• 2.3.42 — DiffInitial (Decimal):pitch auto-calculatinginside the difference from starting bit tototal oval width— Edge vs. Center & Pitch Included Yes/No
• 2.3.3 — Oval widthWidth calculator:Calculator — Bit SizeSize, vs.Decimal, Decimalor displayDifference input method
• 2.3.6 — Bit/EdgeFlip Settings:V/H nexton settingoval (ifcuts applicable)— configuring your drill press orientation
• 5.x05 — Oval Calculator:Calculator Using(full thebook dedicated to oval widthhole calculator on a spec sheet
• 5.x — Oval Calculator: Tethered drill press setupmeasurement)

Tip: Not sure which option your press needs? Start with V & V/H — it gives you the full picture. Once you'veyou have confirmed which axis or axes your press uses for oval cuts, you can narrow the display to just that direction to keep the calculator output clean and unambiguous at the press.

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