Jigsaw problem on downward cut

Ginger83

When cutting the jigsaw vibrates and chatters on downward cut but fine on upward cut.

Any advice?

looksee

Have you tried a new blade - are you sure you have the correct blades, correctly inserted?

colm_mcm

Can you explain upward cut/downward cut?

The high horse brigade

Most jigsaw blades cut in the upward stroke, not down

jhenno78

Sounds like you're not supporting the material properly (and maybe not holding the jigsaw firmly against the work).
On the upward part of the cycle* the piece is pulled into the jigsaw, and on the downward it's pushed away - so if the stuff isn't stable it'll jump. Pushing forward too hard can make this worse too, but that won't be the root cause.

*(yes, that's the cutting part, but whether it is or not isn't really relevant. FWIW, some blades do cut on the downward swing or on both, but they're pretty uncommon.)

jack of all

If the jigsaw has a pendulum action (more expensive jigsaws only tend to have this feature) it may be possible to turn this off. Pendulum facility allows for faster, more aggressive cut in wood but this can result in poor finish and chatter in some materials.

Ginger83

Thanks all, they are new bosch blades

dk1345

Are you using a downward cutting blade by any chance

Ginger83

dk1345 wrote: »

Are you using a downward cutting blade by any chance

Yes

The high horse brigade

Ginger83 wrote: »

Yes

These are the wrong type of blades for general cutting, downward cutting are for precision work on veneered materials with the pendulum disabled.

Ginger83

The high horse brigade wrote: »

These are the wrong type of blades for general cutting, downward cutting are for precision work on veneered materials with the pendulum disabled.

oh i see thanks

dk1345

Why not use the jigsaw upside down with a normal blade

The high horse brigade

dk1345 wrote: »

Why not use the jigsaw upside down with a normal blade

It's less precise as your guiding line is further out on the blade, can be ok with thin material

dk1345

Far from it use this method every day scribing fillers and worktops to walls never have any issues with it

The high horse brigade

dk1345 wrote: »

Far from it use this method every day scribing fillers and worktops to walls never have any issues with it

Yeah I've used it too, but it's not straightforward, there's a knack to it that takes a bit to get the hang of. Downward blades are easier manage. This is the DIY forum, not the Expert forum

dk1345

The op asked for advice I gave mine just trying to help sorry it didn't meet your standards I won't post anymore on it