Why is my jointer not cutting straight?

Why is my jointer not cutting straight?

In some cases, this can be caused by infeed and outfeed tables that aren’t parallel. But a more common (and easier to fix) cause is an outfeed table that is just a bit higher than the jointer knives.

What should the cutting depth be set to on the jointer?

Cuts should be no deeper than 1/8 inch per pass. To use the jointer to smooth edges, feed the wood into the tool with the rough edge facing down. Feed the wood through the jointer as many times as needed to achieve a straight edge. This process is useful for straightening a warped board.

What causes ripples to be formed on a board when it is run through the jointer?

Two things cause ripples (also known as scallops, shown above) when machining boards on a jointer with straight knives, Bill: excessive feed rate or a misaligned knife. Check your jointer knives with a straightedge resting on the outfeed table. Adjust each knife so at its peak it just touches the straightedge.

Why is my jointer cutting concave?

When a jointer produces a concave shape in the surface being jointed make sure that you are not pushing down too hard and flattening the wood out during the cut. When the pressure is released the wood comes back up.

Can scroll saws make inside cuts?

One scroll saw feature is that it can be used to make curved cuts on the interior of a workpiece without breaking or cutting through the edge or perimeter of the board. To cut interior patterns in a workpiece, remove the blade as explained below and then: Drill a 1/4-inch hole in the workpiece.

What type of stock Cannot be used on the jointer?

What should you avoid when using a jointer or planer? Do not cut stock that has loose knots, splits, defects or foreign objects (e.g., metal stone) in it. Do not leave the machine running unattended. Shut off the power and make sure that the cutting head has stopped revolving before leaving the area.

What part of the board should never be used in the jointer?

Never run materials containing nails, screws or other metallic objects. Always stand at the side of the jointer by the cutter head. All setups other than edging and facing must be approved by supervisor. If machine is malfunctioning stop immediately and report to supervisor.

What part of the board should never be jointed?

If grain runs in several directions, position the board so that most of it runs in that direction. End grain generally should not be jointed because the knives will shatter any unsupported portion of it.

Why won’t my jointer cut evenly?

The first is that I’m pressing too hard, or keeping pressure on the wrong part of the jointer table, on each pass. I usually keep my push blocks somewhere above the cutterhead, but have also tried keeping them on the outfeed table once I’ve passed the cutterhead with them.

Why does my jointer table droop?

Sandor Nagyszalanczy: If all the boards you joint end with their leading ends significantly narrower than their trailing ends, then it’s likely one or both of your jointer’s tables droop: The outer end of the table is slightly lower than the middle part, next to the cutterhead.

What happens if a jointer is not checked for coplaner tables?

If they aren’t, you can end up with one of a number of problems, from tapered cuts to cuts that are concave or convex. Ideally, a jointer is checked for coplaner tables before it leaves the factory. However, over time, it’s possible for the infeed and outfeed tables to sag out of alignment.

How do you fix a jointer table that is too low?

If the table is too low, simply raise it using the adjustment knob. When properly adjusted, a jointer should leave a straight, smooth surface that doesn’t need any sanding or touching up. But it’s not unusual to discover a series of scallops or ripples along the freshly jointed edge of a board.