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Forum topic by rogerw posted 02-24-2011 06:35 PM 1900 views 0 times favorited 40 replies Add to Favorites Watch
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262 posts in 2716 days

02-24-2011 06:35 PM

Topic tags/keywords: question jigsaw cutting

Over the years I have owned several jig saws. I am on my third now, all different brands. The first was a craftsman, the second a black & decker, and now a ryobi.

What is the secret to making a vertical cut? I have learned that following the line is directly proportional to a straight cut but why is the cut always undercut or overcut on the other side? Is there a secret to these saws I haven’t figured out yet????


-- >> my shop teacher used to say "do the best at everything you make for your mom because you're going to see it for the rest of your life!" <<

40 replies so far

View Jack_T's profile


623 posts in 3058 days

#1 posted 02-24-2011 06:42 PM

Well the first two saws that you mention are the problem themselves. I have seen but not used the Ryobi (at least a fairly new one). I use the Bosch 1590 and get good cuts. Have you checked to make sure that your blade is 90 degrees to the base plate. I don’t mean making sure that the saw is set to 90 degrees but rather verifying that the saws scale is accurate by checking with a known square?

-- Jack T, John 3:16 "For God so loved the world that he gave his only Son, so that everyone who believes in him might not perish but might have eternal life."

View chrisstef's profile


17428 posts in 3033 days

#2 posted 02-24-2011 06:44 PM

My assupmtion is due to the flexibility of the blade … its drifting on you. Im not sure that there is a way to cure it other than buying a band saw but i could be wrong. just my opinion. You can always try a hand saw or coping saw for tight cuts.

-- Its not a crack, its a casting imperfection.

View childress's profile


841 posts in 3568 days

#3 posted 02-24-2011 06:44 PM

First, get yourself a GOOD saw. Then use good quality blades and last try not to push the saw. You need to let it do the work. When you find yourself pushing hard it’s because the saw and /or blades suck and you end up putting sideways pressure which deflects the blade. This is what I’ve learned over the years and to be honest, I still have a little bit of a problem with this some of the times. When I do, I realize I’m not letting the saw do the work, I’m pushing too hard…..

Look into the bosch models. one with stroke control and orbital action like this one.

-- Childress Woodworks

View Lee Barker's profile

Lee Barker

2170 posts in 2877 days

#4 posted 02-24-2011 06:46 PM

Quality blade is #1. Test a brand new name brand (not drug store) blade, straight cut. If the cut is not square, check the blade-to-shoe angle. (Not easy to do because there’s so little shoe there.)

Are you saws oscillating? That is a feature that keeps the blade cooler.

Heat is the enemy of the cutting edge of the blade; heat can be generated by too-tight radii and by too rapid a rate of feed.

Whenever the “what jigsaw to buy” question comes up here, the overwhelming winnah in the responses is the Bosch.

My tool repair guy says the first Bosches with the clip top blade replacement feature had frequent failures of those parts. This suggests that an older, not-abused Craigslist unit might be a good option. I do not know if this failure-prone model has been improved in the newer ones, but I’d suspect so.

I have a top handle Bosch I bought about 20 years ago and it’s never been to the repair guy. It is soooo oooold that you need a narrow screwdriver to change the blade. I also have a barrel grip, knob-on-top newer model that has been to the shop once (failure of the blade release screw).

But as for cutting, they tend to be square and true. I buy Bosch blades only. And I don’t mind having this cute narrow screwdriver in my install tool box as well as handy in the shop.



-- " his brain, which is as dry as the remainder biscuit after a voyage, he hath strange places cramm'd with observation, the which he vents in mangled forms." --Shakespeare, "As You Like It"

View Nomad62's profile


726 posts in 2985 days

#5 posted 02-24-2011 06:55 PM

I’m not too keen on jigsaws, but I did watch a guy use a Festool jigsaw (with their blade) cut thru a 3” piece of walnut like most saws go thru fir. It was fairly amazing. While I cannot point you towards a new saw to fix a problem I can say that that saw did work perfectly.

-- Power tools put us ahead of the monkeys

View Pop's profile


427 posts in 3973 days

#6 posted 02-24-2011 07:03 PM

I to like Lee have an older Bosch top handle saw, and I like my little screwdriver. I use only Bosch blades. The new Bosch “Progressor wood & metal blades seem to be the best for my general work.

Even the Bosch blades will bend if overheated. Trying to feed too fast is my main cause of this. As Lee said slow down and let the saw do the work.


-- One who works with his hands is a laborer, his hands & head A craftsman, his hands, head & heart a artist

View ken_c's profile


323 posts in 3189 days

#7 posted 02-24-2011 07:17 PM

BOSCH – That is the secret – get a Bosch – I had a crapsman – never got a good cut. After I got the Bosch I literally took a sledge hammer to the crapsman…

View dbray45's profile


3320 posts in 2803 days

#8 posted 02-24-2011 07:40 PM


-- David in Damascus, MD

View devann's profile


2246 posts in 2719 days

#9 posted 02-24-2011 07:55 PM

Go with a quaility tool and that includes blades. Bosch appears to be what most like around here. They’re good. I’ve used them before. I own a Porter Cable and I’ve been useing it for several years now and it seems to be holding up quite well. I purchased it because the foot doesn’t tilt and it was made in the USA. I tend to prefer American made anything, but that’s just me. The saw is listed has a bayonet saw not a jigsaw I guess that’s the difference, looks like a jigsaw to me. Porter Cable blades have a “T” top making them sturdier and a liitle harder to break. Drawback to this is they’re getting harder to find. The saw will still accept a standard jigsaw blade. Still, it makes nice square cuts even in thicker material and in the end that’s what counts.

-- Darrell, making more sawdust than I know what to do with

View lanwater's profile


3111 posts in 2960 days

#10 posted 02-24-2011 07:56 PM

After I bought the Festool, I no longer have that problem.

-- Abbas, Castro Valley, CA

View Brrman's profile


65 posts in 2699 days

#11 posted 02-24-2011 07:57 PM

The saws you are buying is the issue. Makes all the difference. I have both a Black and Decker and a Bosch. The difference in the two is like a Kia to a Mercedes. I managed to get the B&D to get acceptable results by putting Bosch blades on it, but its doesn’t even approach the quality of cut and ease of use I get from the Bosch saw.

Now I use the B&D just for junk work on 2×4’s and metal cutting.

-- "Being a perfectionist does not make one perfect..."

View TheBossQ's profile


100 posts in 2719 days

#12 posted 02-24-2011 08:03 PM

I’ve never used a jig saw for anything other than bulk material removal where the edges of the cut are going to be cleaned up with another tool(s). Typically a router.

Out of curiosity, what kind of cuts or cutting operations require a jig saw to make clean accurate cuts?

View Dennisgrosen's profile


10880 posts in 3142 days

#13 posted 02-24-2011 08:11 PM

Lee that modell isn´t that old mine is only 35 years still have the orginal paperbox to it
and my screwdriver live in the box with the saw and only me use it and only for changing blades
geting a small head screwdriver with that length is difficult

take care

View Tomoose's profile


422 posts in 3400 days

#14 posted 02-24-2011 08:19 PM

I have an old Crapsman that belonged to my dad – best place for it is in the drawer. I only take it out when I want to ruin something. A good carpenter friend of mine also swears by his Bosch.


-- “I am always doing that which I cannot do, in order that I may learn how to do it.” Pablo Picasso

View rogerw's profile


262 posts in 2716 days

#15 posted 02-24-2011 09:25 PM

Tomoose—thats where my crapsman came from, my dad’s tool stash. I inherited a couple things when he died and that was one of them. the other was a sears router, which i still use mounted in my router table.

TheBossQ—i am using it to cut out doors and windows in the dollhouse walls i am building.

the shoe is square to the blade. I have decided to use my scroll saw for the remainder of this project and continue my practice with this thing on scrap another time. :^)

i appreciate the answers i have gotten so far. I asked a question a while back and it turned out that these tools are a tom-a-to / tom-o-to type thing. just to be sure we are all on the same page i have uploaded a pic.


-- >> my shop teacher used to say "do the best at everything you make for your mom because you're going to see it for the rest of your life!" <<

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