Re: Jointer finish problem

[Morris Dovey]

| [resend - first two have not gone through after 18 hours]

That's the way it should be - this is a text-only newsgroup.

| I'm pushing the lumber through at around 2" per second (the 6" | sample took about 3 seconds). The raised areas might not be enough | to cause gluing difficulties (face gluing for a work bench), but I | know this isn't right...

You're right, it's not. If you jointed knots, they might be the cause - else it could be sand/grit trapped in the wood or hiding on the surface.

I'd be inclined to check the bevel on the knives - and to perhaps add a secondary bevel to have just a bit more "meat" at the cutting edge. Even HSS will chip and break if the edge is too thin.

| | One guy at work thought the ends of the board might be dirty | (literally, dirt), and nicking the knives (I have not trimmed the | length yet). Another had no idea what might be causing the problem, | but said it wouldn't of been dirty lumber, especially from where I | got it from.

A really good source isn't a guarantee that the wood'll still be clean when you get it back to your shop - it's possible to pick up sand and grit from a truck bed, too...

-- Morris Dovey DeSoto Solar DeSoto, Iowa USA

[Rob]

My bad. I lurked for a bit and saw quite a few images going through, and thought I'd be ok.

A couple of knots, but it's FAS lumber, so not too many knots. And, I saved the knotty board for last.

I'll check with the sharp shop to see if they can do this. I tried sharpening the last set of knives on a water stone, but they were bowed slightly, so I stopped quickly, and picked up the new set.

Good point. I did load the lumber on stands in my bed, so it wasn't laying on the bed itself, but that might only mean strips of gunk. I was mindful of that issue. And it's standing up in my (clean) garage.

Thanks for the thoughts, Rob

[Morris Dovey]

| Morris Dovey wrote: || || That's the way it should be - this is a text-only newsgroup. | | My bad. I lurked for a bit and saw quite a few images going | through, and thought I'd be ok.

/My/ bad - I should have mentioned that woodworking-related binaries can be posted to news:alt.binaries.pictures.woodworking.

-- Morris Dovey DeSoto Solar DeSoto, Iowa USA

[Rob]

The sharp shop put a microbevel on the blades. Then I cut myself putting them on :-(

I cut of the ends (1/8") of each board. Ran another 60 bf through, and the first board is as good as the last.

Thanks for your advise. I suspect is was the secondary bevel that did the trick.

Cheers, Rob

[Morris Dovey]

| The sharp shop put a microbevel on the blades. Then I cut myself | putting them on :-(

Not a thing I can say that you haven't already said to yourself. I keep a tube of Neosporin and a handful of band-aids in my shop for those occasions when I've forgotten what sharp is all about.

| I cut of the ends (1/8") of each board. Ran another 60 bf through, | and the first board is as good as the last.

Isn't it great when things work like they're supposed to? :-)

| Thanks for your advise. I suspect is was the secondary bevel that | did the trick.

You're welcome. Actually I was just passing on something I learned about here on the wreck. My guess is that the initial sharpening left a slightly too fine edge - and adding a secondary bevel (to a just ground edge) was a strategy for recovery with minimal loss of HSS.

Please post pix of your bench to news:alt.binaries.pictures.woodworking when it's done!

-- Morris Dovey DeSoto Solar DeSoto, Iowa USA

[Larry Jaques]

On 18 Dec 2005 19:09:32 -0800, with neither quill nor qualm, "Rob" quickly quoth:

Get these and wear them before you replace them the next time, Rob.

or the sticky-coated (kevlar or spectra) glass-handling gloves. (HF no longer carries the type I got. Golden kevlar with a drizzle of clear rubber on the palm and fingers side.)

You are advised to write "advice" the next time you thank him.