How To Drum Sand Without Creating Chatter Marks - Ask Questions & Leave Comments (Ep#41) 

You are the man you explain shit awesome. Just wondering what grit sandpaper you orbital sand with to smooth the whole floor out before staining and finishing? Again great video.

Ooooh, like when a dirt road gets washboarded... It's just keeps getting worse with each successive car that drives over it. Your thoroughness is very much appreciated.

About to tackle my floor project tomorrow, this was super helpful. Thanks for the tips

A demonstration would be nice, thanks!

Great video. Been sanding and refinishing hardwood floors for a few years and no one told me about this until I had my first hiccup. I chalked it up to be a dip in the floor. But it turns out it was my sanding methods.

Very helpful tip and that floor is beautiful

Brother, those floors are beautifully prepped for stain. You did a superior sanding job using that rental. We use powerful Galaxy Belt Sanders and the idea is the same. We also must do 2 steps during final sanding, 1. lighten drum pressure setting 2. a faster walking step. I subscribed, like and shared your video. ✌🏽

The Goat

This was very helpful I had guys keep telling me that I was dropping the drum when I wasn’t moving but I knew I wasn’t I just couldn’t figure out why my floors kept having it I kept switch up my ways. Thank you!

Liked and subscribed!

Very helpful information. I was wondering if it'd be a good idea to use a rotary sander to finish out.

After sanding with the EZ-8, edger and orbital sander: When you fill floor irregularities or damage with stainable wood filler, what grit and sander do you recommend using to level out the wood filler prior to the polyurethane process?

Great video. For prefinished floors what paper do you recommend for the EZ8?

Why would you get chatter marks with a belt machine ?

I have sanding floors for 40 years .I use flet on my drumsander.

This is interesting. I once talked to a dedicated floor guy who said all his jobs had chatter marks. This video explains why. I only had chatter marks on the first pass of the used DU-8, and I was ignorant of the cause, which turned out I had the recessed bar upside-down and it wasn't recessed... Long story short, I found if I waddled like a duck, slowly during the forward pass, it minimized the chatter and the cupped board high spots. I figured it out and flipped the retaining bar, but I still waddle on the forward stroke (on the theory that slightly sanding against the grain is more aggressive on the high spots, and that a more random forward pass will look better and be more productive per minute of sanding. Sanding strictly at an angle, alternating as you do, should be better on floors with more cupping. Also, your slight angle makes more sense to my brain, regarding turn around and consistency, than the more aggressive angles other RU-vid floor guys demonstrate. I am far more likely to try this. The information will come in handy when I need to rent an ez-8.

Can you use that sander on a outside wood deck? Thx

Are you saying you hand orbital the whole floor?

Can I cross cut with 40 grit down a wall and still pull it out with the orbital sander?

do you ever use filler in gaps ?

I've never had a problem with chattering. Is it just not enough of a step down.

struggling on why the chatter marks can't exist at a 2 degree angle

skip to 5:20

Use chaulk crayon or pencil and so u dont forget where chatter marks are that need fixing

so i went straight on my 36 cut, can i now go at an angle at 60?

Chattet happens for prolly 20 different reasons. A professional hummel will leave no chatter when sanding with the grain. I can use both the sheets and cut outs and achieve no chatter. i only sand at 45s if the floor is buckled or if theres a strong finish. But chatter happens for many different reasons. Theres many different ways to sand achieveing the same results.

It took 6 minutes to say “sand at an angle”