Log Cutting Pattern Samples 

Cutting Pattern Samples

Cutting Patterns

Log Cutting Optimization for Sawmills, the Pitago

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Cutting logs to timber in the best possible way has always been a challenge. Sawmills employ every means to recover as much yield as possible from each log. The extra footage can be the difference between a profitable and a nonprofitable log.
Today the cutting is often optimized online after laser scanning of logs. However, you may need to check your ideas at the office before/without affecting the production.
The solution is the Pitago, a tool for quick and advanced analysis for sawmill production planning.
Its key features are: ❶timber cutting patterns, ❷cutting list, ❸timber volume, ❹timber price, ❺log yield, ❻wood waste volume, ❼report in Excel, ❽waney edge timber, ❾conversion between imperial and metric units.
Pitago is a web application.

Currently Pitago consists of three optimizers:
Pi1: Two-stage optimization algorithm
Pi2: Cutting a log to 1 timber dimension
Pi3: Batch Optimizer
Only a couple of hours of training is required. Clear, powerful and flexible software.
Explore Pitago Optimizers by watching
short instructional videos
IMPORTANT
When we at Pitago optimize log sawing, we assume that the log is perfectly round and perfectly straight. When you deal with real production, you may want to be aware of approximate calculation values. The combination of both the calculations and your experience gets you being close to the correct value.
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Cutting Patterns

The Pi1 Cutting Optimizer

Pi1 gives you estimates of log yield and revenue for milled pieces. ◯ → □ + □ + □
This is a tool that generates maximum log yield through calculating optimal sawing pattern.
The Pi1 calculations are performed in two stages.
Stage 1 - Live Sawn. Cutting a log into timber of the different thicknesses.
Stage 2 - Getting the final timber sizes from the ones pre-calculated in Stage 1.
Only a couple of hours of training is required. Clear, powerful and flexible software.

Pi1: Go for it here
Explore Pitago Optimizers by watching
short instructional videos

Cutting Patterns

The Pi2 Cutting Optimizer

Breakdown simulations lets to improve volume yield by handling logs as single individuals during the breakdown rather than as parts in a batch. Optimal volume yield can be achieved from every log by applying optimal sawing pattern.
Pi2 is a timber cutting simulator enabling you to see what you get at the end of sawing operation.
Calculations can be performed in both metric and imperial unit systems. Calculation reportss in Excel enable simple real data import. It can be integrated into your specific IT environment.
Immediate access to all new features and enhancements.
Pi2: Test it out today
Explore Pitago Optimizers by watching
short instructional videos

Cutting Patterns

The Pi3 Log Batch Cutting Optimizer

How to choose what timber to cut from what log ?
Easy to fall into the trap of cutting small dimensional timber out of large logs ?
1. Pi3 finds the optimal log diameter for each specific timber size. To reach the goal, series of log sizes are being recalculated and the highest percentage of timber yield is set. The process of finding the corresponding log is repeated for each timber size specified by the production program.
2. The optimal cutting pattern for a given timber for a given log is calculated.
All batch calculations are displayed in an overview list. Do all your measurements for a batch of logs and then start cutting.
Waste nothing!
Pi3: Multiple calculations in one pass
Explore Pitago Optimizers by watching
short instructional videos

Cutting Patterns

Free timber?

Pitago Optimizers:

Improving Timber Yield Recovery

Thus, free timber can be extracted if the sawyer develops a sawing plan for each log that minimizes the potential yield loss.

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Explore Pitago Optimizers by watching
short instructional videos