The numerous cutting techniques achievable with the swingblade.
Opening cut.
The saw is aligned to the log for the first cut in vertical orientation. The saw is then driven towards the
operator while performing the first cut. The blade is pivoted at the operator end and driven through the
log again while in horizontal orientation. The board return unit springs back into its normal position and
the saw is returned while pulling the sawn timber back to the operator.
The process may be reversed. The first cut is aligned at the operator end while in horizontal orientation.
The saw is driven through the log moving away from the operator. At the other end the blade is pivoted
and the saw is returned finishing the cut while in vertical orientation.
|
|
|
|
 |
|
 |
|
|
|
Sawing big beams in sectional passes.
This method is very useful when up against hard tensioned wood. Sawing this way prevents tension
building up against the saw blade while sawing. This is a problem often found when using conventional
twin blade sawmills. The sawn timber will bow out and bind against the blade while attempting the cut
in one big bite.
The swingblade does have the obvious advantage of cutting one edge at a time which releases tension
as you saw. But it has the added advantage of cutting it in sectional passes as well.
The saw begins the process by sawing a partial horizontal cut. At the other end the blade is pivoted and
moved over the additional increment to complete the width. The saw is then returned toward the
operator while cutting the vertical. The blade is pivoted and the saw is then powered forward finishing
the cut. The board return unit springs back to its resting position and the beam is pulled back to the
operator.
This process may be reversed. The first horizontal partial cut is performed. The saw is returned while in
the same orientation and the final partial cut is performed. The blade is then pivoted at the other end
and the vertical completes the sequence.
|
|
|
|
 |
|
|
|
 |
|
 |
|
|
|
Double cutting.
Our swingblade has the added ability of double cutting. This means the saw is able to cut on the right
side of the horizontal blade going and on the left side of the blade coming. Effectively means the saw is
able to cut a beam double the width directly off the log. A 12" x 24" is achievable. In most cases the
beam is able to be returned via the board return unit. Obviously there will be a limit to the size that is
returned simply because a 12" x 24" beam is pretty heavy.
The saw starts the cut performing a max 12" wide horizontal while moving away from the operator. At
the other end the blade is pivoted to vertical orientation and moved over the desired increment to
achieve your wide board (Example. Additional 12"). The saw is then returned to the operator while
initiating the vertical cut. The blade is then moved to the right out of the log in the same orientation.
While in idle the saw is fed to the other end. The blade pivots into horizontal and is then returned while
cutting on the left side of the blade. The saw idles forward to the opposite end and the final horizontal
reverse cut frees the beam.
This process can be reversed. The horizontal reverse cut is performed first. The normal horizontal side
finishes the cut allowing the board return unit to drag the beam back.
Notes:
It is preferable to retrieve the double cut from the far right of the log to simplify the operation. If the
double cut is required from the left side of the log, a series of vertical cuts will be required from the
right side first.
When double cutting large beams; wedges prevent the beam from binding on the blade while
performing the last cut.
|
|
|
|
 |
|
 |
|
|
|
 |
|
|
|
 |
|
|
|
|
|
 |
|
|
