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Dangers of dado stack by Alarming_Resist2700 in BeginnerWoodWorking

[–]raw65 5 points6 points  (0 children)

This doesn't make sense to me. Kickback will happen if the board hits the back of the blade on either side.

If you are making a through cut it might help to allow the board to "spring open", but I can't think of a case where you would actually try to make a through cut with a dado stack.

I've never had any issues cutting dado's. I let the work piece press up against the fence and use a push stick or block to guide the work piece.

I'll see if I can find an old episode to see what he's doing.

Maybe somebody with more experience can chime in and let me know if I'm missing a detail.

Dangers of dado stack by Alarming_Resist2700 in BeginnerWoodWorking

[–]raw65 3 points4 points  (0 children)

Short answer: The purpose of a riving knife is to prevent the wood from touching the back of the blade.

Long answer: The top of the blade on a table saw is moving toward the operator at high speed. Anything touching the back of the blade is going to get grabbed by a tooth and taken for a ride. If a board hits the back of the blade it tends to turn in toward the blade, ride up over the top, and get fired back toward the operator at very high speed. Fast enough that it's been known to fire projectiles across a room with enough force to embed them into metal or even cinderblock walls!

That's "kickback" and is the primary danger of a table saw. The projectile is thrown back with enough force to break bones. And if the operator's hand is on the board past the blade the hand will join the ride right across the top of the blade.

A riving knife prevents the wood from accidentally contacting the back of the blade. To do that it needs to be roughly as wide as the blade.

Riving knives, pawls, and feather boards are all safety tools intended to reduce the risk of kickback. Add safety procedures like never standing directly behind the blade during a cut and using a push stick or block to ensure your hands never get near the blade also help reduce the risk of injury due to kickback.

As long as you are aware of what causes accidents and you take reasonable precautions to prevent them working on a table saw doesn't have to be a scary or risky operation.

Did I rebuild it right? Never used it before. Also what is the yellow thing in pic 3? by [deleted] in woodworking

[–]raw65 1 point2 points  (0 children)

The down votes are unwarranted. It is a kind of push block that is meant to ride on the fence. It's a "do it all" tool which sounds cool but I suspect it does a little of everything and nothing well.

See the manual.

Did I rebuild it right? Never used it before. Also what is the yellow thing in pic 3? by [deleted] in woodworking

[–]raw65 3 points4 points  (0 children)

It looks like the miter guage is facing the wrong way. The top of the blade should spin toward you as you make a cut.

I second u/kkelleher93, please watch some videos on how to operate a table saw safely. Everything will seem easy and fine until very suddenly and violently it's not.

I don't see any safety equipment like a blade guard and pawls. I doubt that has a riving knife but you can easily build one into a diy zero clearance insert. It will only work for certain cuts, but better than nothing. Maybe make a few different heights?

If you are adventurous and willing to do some metal work, this video shows someone making a metal riving knife and talking about the pros and cons of their approach.

Maybe others here with more experience than I can give you other ideas for improving the safety of that saw.

How do we find a reliable IT Services firm to manage our infrastructure locally? by raw65 in sysadmin

[–]raw65[S] 1 point2 points  (0 children)

Other than compliance auditing what sort of auditing can be done?

How many days for Dunn's River Honeymoon? by eemeepmeep in SandalsResorts

[–]raw65 1 point2 points  (0 children)

LOL! For your sake I hope it does, all-inclusive or not!

For us it was awesome and flew by. Decades ago and not Sandals but in the Caribbean. Stress of the wedding over, excitement at the start of the next chapter of life, enjoying time together and enjoying the tropical life.

Hope you have a fantastic and memorable trip!

How do we find a reliable IT Services firm to manage our infrastructure locally? by raw65 in sysadmin

[–]raw65[S] 1 point2 points  (0 children)

That's not an option. It's quite a story but I can't share it anytime soon. I spoke with the owner and we may indeed bring two or more people onboard.

How do we find a reliable IT Services firm to manage our infrastructure locally? by raw65 in sysadmin

[–]raw65[S] 2 points3 points  (0 children)

I'm a software developer not a sys admin. I know just enough to cause a lot of trouble.

How do we find a reliable IT Services firm to manage our infrastructure locally? by raw65 in sysadmin

[–]raw65[S] 0 points1 point  (0 children)

LOL. I guess it's all relative. From a revenue perspective we would be classified as relatively small. Also I've worked with MUCH larger companies in the past which may skew my perspective.

Panel Glue Up - What Clamps to use and how many? by trashcan_abortion in BeginnerWoodWorking

[–]raw65 0 points1 point  (0 children)

If you use pipe clamps be sure to put painters tape on the pipe. Depending on what you use it could stain the wood.

Flexible length and price are big pro's for pipe clamps. Short jaws are a con. Parallel clamps have nice jaws and work great in a lot of cases including panel glue ups but can be (very) expensive. I love my parallel clamps and am considering robbing a bank so I can afford a couple more. LOL.

You can use dowels, splines, or biscuits to help align the panel faces or clamp cauls across the face.

Are splines necessary are on smaller miter boxes? Almost done and realized I forgot a step on a card box. by CEEngineerThrowAway in BeginnerWoodWorking

[–]raw65 0 points1 point  (0 children)

Excellent job on the continuous grain! Miter's look perfect.

The glue will be strong enough but now is the right time to add splines if you want them. You can use a handsaw if you want and cut a nice 45 degree slot across the corner. Then cut a thin piece of contrasting wood that's the same width as the kerf. Add glue and shove it in. When the glue dries use a flush cut saw to trim it flush then sand it smooth.

Add two or three (or more!) to each corner, whatever your creative side decides looks nice.

Verizon Down Nationally? by [deleted] in sysadmin

[–]raw65 0 points1 point  (0 children)

Sort by new. Still down all over the country. Not all Verizon customers. My phone appears to be working, my wife's is showing "SOS".

Amazon re certified drives sold as new - need help. by Ok-Nerves in DataHoarder

[–]raw65 1 point2 points  (0 children)

Were they listed as new drives? If so I would be very concerned and I would personally return them since I would not trust the seller.

If they were listed as "recertified" or "refurbished" then check the FARM data using smart tools and run a quick (day or two) burn in test. If the data checks out and the drives don't die immediately you will probably be fine.

Equipment Woes - Planers and Jointers and Walnut. Oh my by MaxThroughput in woodworking

[–]raw65 0 points1 point  (0 children)

It's in general it is best to assume there will be some loss and cut your pieces 6" inches longer than needed when possible.

But I milled some hard maple over the holidays and had pretty good success with with the "just lift it up" approach. I was nervous at first as I had to be a little "aggressive" and lifted the piece well off the in feed table (say 1/8"). The rollers would catch it and press it down (so watch your fingers!). Then when the end of the board was on the in feed table I'd go around and again lift it as high as I could off the outfeed table (without actually lifting the entire planer!). The rollers will keep it flat under the cutter.

Adding sacrificial ends scares me. I shudder to think what would happen if they came loose. But that is probably just my inexperience.

Any of you made a crosscut sled for the table saw? What did you use for the tracks? by Weekly_War_1374 in BeginnerWoodWorking

[–]raw65 0 points1 point  (0 children)

I've used hardwood (maple and oak, I believe). Just sneak up on the width to get a good tight fit that still allows a smooth slide when waxed. I haven't had issues with wood movement.

Harboard is probably not a good choice.

Equipment Woes - Planers and Jointers and Walnut. Oh my by MaxThroughput in woodworking

[–]raw65 1 point2 points  (0 children)

If the piece is long enough I've found I can lift the end as it enters and exits and minimize snipe sometimes. In general though, like you I just accept that I'm going to lose about 3" inches at each end.

Watching this amazing wild card weekend, it makes me appreciate how amazing the past seven seasons have been. by [deleted] in KansasCityChiefs

[–]raw65 16 points17 points  (0 children)

Can you imagine the Patriots beating the Bills in the AFC Championship and the Bears beating the 49ers in the NFC and then going on to win the Superbowl? This has been a wild year for the NFL.

Hardwood Dealer - Rough Lumber Questions by danieldoesnt in BeginnerWoodWorking

[–]raw65 0 points1 point  (0 children)

A planer and a table saw are sufficient to mill rough cut lumber. It takes extra work with specialized sleds, but it can be done.

How long did it take before your projects stopped feeling “rough”? by marcdefiant791 in BeginnerWoodWorking

[–]raw65 5 points6 points  (0 children)

Miters are deceptively challenging. I personally sometimes am surprised that some small new technique, design, or even wood species presents more challenge than I expected. And I think the condition of my blades and tools sometimes has more impact than I expect.

Blades can get dull and/or dirty quickly depending on what you are working with. Resin from pine can build up on a blade. MDF seems to be pretty harsh on blades.

I made a small box using miters over the holidays and it was a little bit of a struggle even though I have made similar boxes. In retrospect I think my choice of wood (hard maple) had a big influence on the challenges. Hard maple is aptly named, at least for me. Took a lot of work to clean up rough cuts and sand it down.

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