Orbital Sander Basics | Beginner Tool

7November 2021

in today's video we're learning all about the 
orbital sander which will include covering some   basic sanding techniques there are two types of 
orbital sanders on the market today the first   one being the standard orbital sander which is 
normally classified by the size of the sanding   pad and by its shape which is normally a square 
or rectangle there's at least few subcategories   to the standard orbital sander the first being 
the quarter sheet orbital sander which can   hold a quarter sheet of nine by eleven standard 
size sandpaper this gives the user the ability   to get four usable pieces out of one sheet the 
next category is the half sheet orbital sander   this holds a half sheet of sandpaper and this 
provides two usable pieces out of one sheet the   sheets are usually attached to the sander with 
some sort of spring system or metal clamp that   holds the paper to the sanding pad almost all 
orbital sanders move the sanding pad in the   same way which is in a very tight orbital motion 
which helps to remove material faster one of the   biggest downsides to the sanders its inability to 
remove a lot of material quickly so fortunately   there's another option and in comes the random 
orbital sander this sander is characterized by   a round sanding pad with round sanding discs 
that can be attached to the pad with either   a pressure-sensitive adhesive or a hook and loop 
kind of like velcro in addition the round sanding   discs have factory holes that line up with the 
onboard dust collection to reduce dust while   sanding the random orbital sander not only moves 
in an orbital or ellipse motion but it spins as   well giving this sander the ability to remove 
a lot of material quickly this design works so   well because the pad is always moving in a random 
direction which helps to eliminate some sanding   mistakes like cross-grain scratches and swirls 
there's more pros and cons to each of these   sanders but overall I have to say that the random 
orbital sander is a great beginner tool regardless   of what you buy all new Sanders come with some 
sort of dust collection bag just remember that   when you're using sheets of standard sandpaper 
if you have to punch holes in the papers so that   the dust collection system can draw the sawdust 
up the last thing I want to mention about dust   collection is that it's always better to use hose 
and a vac system than using the factory bag these   bags are great for small amounts of sanding but 
if you have to do a lot I would strongly consider   using a vac we'll be talking a lot more about dust 
collection and air filtration on this channel so   if you have questions on those topics be sure to 
subscribe and hit the bell notifications so you   don't miss out when I post those videos let's 
take a few minutes now and talk about sanding   progression which simply means sanding through 
the different levels or stages of the sandpaper   grits and here's the typical sanding progression 
list the lower the number the more aggressive the   sandpaper removes the material but the deeper 
the scratches the higher the number the less   the sandpaper will remove but the shallower the 
scratches in general it's always best to progress   through at least three to four sandpaper grits 
starting lower and working your way up ultimately   it's through trial and error where you figure 
out your own progression for your specific tools   and specific projects moving on to sanding 
techniques it's important to remember that   while you're working with a standard orbital 
sander that you always sand in the direction   of the grain if you're not cautious this sander 
will leave some really bad cross-grain scratches   on the other hand the random orbital sander is 
much more forgiving and under normal operating   conditions it produces no cross-grain scratches 
you want to keep both Sanders flat to the work   this is especially important with a random orbital 
sander because if you tip it in either direction   for too long it will create dips and valleys in 
your work in addition keeping the sander flat   will also help reduce accidentally rounding 
over the edges if that's something you're not   intending to do lastly it's important to get a 
good uniform sanding over the entire workpiece   for example when you're using a standard orbital 
sander you can start on the left and work your way   to the right always keeping the sanding motion 
with the grain and applying equal pressure with   the random orbital grain direction doesn't really 
matter so you can start and work in any direction   you want just make sure you get uniform coverage 
to do that some people find it helpful to take   a pencil and make light marks over the entire 
surface what this does is allows them to bed   gage complete sanding coverage by visually giving 
them the ability to see if and when the pencil   marks are gone so listen sanding wood is a bit 
of an art form so you've got to be patient with   it and you got to be willing to make some mistakes 
so that you can learn from them if you liked this   video hit that thumbs up as always leave me a 
comment below and I'll see you guys next week you

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