Belt & Disc Sander (Metal Shop Machinery)
Summary
TLDRThis instructional video provides a comprehensive guide on the safe and effective use of a belt and disc metal sander in a workshop setting. It covers essential safety procedures, including the use of protective gear and the importance of housekeeping. The script also offers detailed operational instructions, such as adjusting the tool for the size of the job and maintaining proper belt tracking. Additionally, it emphasizes the necessity of documenting hot work with a logbook to prevent fire hazards in a shared wood and metal shop environment.
Takeaways
- 🛠️ The video introduces a belt and disc metal sander, emphasizing its appropriate size for small metal projects and its use for cleaning up cuts and edges before welding.
- 👨🏫 Safety operating procedures are crucial and must be followed while using the tool, including wearing safety glasses, hearing protection, and a dust mask.
- 🚫 Long or loose hair, neckties, and baggy clothing should be secured to prevent entanglement with the machine.
- 💍 Rings, watches, and loose jewelry are prohibited when operating the sander to avoid accidental contact with moving parts.
- 🧤 Leather or work gloves are recommended to protect fingers from accidental contact with the abrasive surfaces.
- 🔍 Pre-operational checks are essential, including familiarization with machine operations and ensuring the sandpaper is in good condition.
- 🛑 The importance of maintaining a safe workspace is highlighted, including keeping the area clear of tools and metal cutoffs, and ensuring walkways are free of hazards.
- 🔄 Belt tracking adjustments are necessary for optimal performance and should be checked before use.
- 🔧 Changing belts and discs on the sander is a straightforward process that requires unplugging the tool and following proper guidelines.
- ⚠️ The script outlines the potential hazards of operating the tool, such as skin abrasion, eye injuries, and inhalation hazards, and the importance of protective equipment.
- 🗒️ A hot work log book is used for documenting metal work to ensure safety, especially in a wood shop environment where there is a risk of fire from sparks.
Q & A
What is the primary use of the belt and disc metal sander mentioned in the script?
-The belt and disc metal sander is used for small metal projects, typically for cleaning up cuts and edges on small stock before welding, and is suitable for working with materials like one-inch square tube or one and a quarter inch square tube.
What are the safety glasses and goggles recommended for when using the metal sander?
-Safety glasses are required at all times while using the tool due to the potential for airborne sawdust or metal particulates. Safety goggles are additionally recommended to protect against these particulates.
Why is hearing protection necessary when using the metal sander?
-Hearing protection is required for extended use of the metal sander due to the noise levels that can rise above 100 decibels, and it is recommended for short periods of usage as well.
What should be done with long hair, neckties, and loose clothing when operating the metal sander?
-Long hair should be tied back or tied up, neckties should be contained, and loose or baggy clothing must be secured to prevent them from getting caught in the moving parts of the machine.
Why are rings, watches, and loose jewelry not allowed while operating the metal sander?
-Rings, watches, and loose jewelry should not be worn to prevent them from getting caught in the machine, which could lead to injury.
What is the purpose of the pre-operational safety checks mentioned in the script?
-Pre-operational safety checks are performed to ensure familiarity with machine operations and controls, to use the correct sandpaper, and to adjust the belt tracking as needed, among other safety measures.
How should the workpiece be handled during sanding to avoid heat buildup and premature wear of the abrasive paper?
-The workpiece should be kept moving across the sanding surface using light pressure, and the tool rest should always be used to support the workpiece to avoid heat buildup and premature wear.
What is the significance of the hot work log book in the context of the script?
-The hot work log book is used to document all metal work and welding activities, including the time started, personnel involved, and work performed. It is crucial for safety, especially in a wood shop environment where there is a risk of fire from sparks.
Why is it important to collect hot trash separately from regular trash after metalworking?
-Hot trash, such as metal shavings and grindings, needs to be collected separately to allow it to cool down and prevent smoldering or combustion when mixed with combustible materials in regular trash.
What are the potential hazards associated with operating the metal sander, and how can they be mitigated?
-Potential hazards include skin and eye contact with sparks or particles, skin abrasion from contact with abrasive belts, discs, or pads, loss of control of the workpiece, and inhalation of dust. These can be mitigated by wearing protective gear, using tool rests, and following proper housekeeping practices.
How should the metal sander be maintained and stored after use?
-After use, the metal sander should be turned off and the belt or disc allowed to come to a complete stop. Debris should be blown out of the tool with clean, dry air, and the tool should be wiped down. The hot trash container should be returned to the clean tabletop, and the work area should be swept and kept tidy.
Outlines
🛠️ Metal Sander and Grinder Introduction
The script introduces a belt and disc metal sander, highlighting its suitability for small metal projects. It emphasizes the importance of safety procedures, such as wearing safety glasses, goggles, hearing protection, and a dust mask. The need for pre-operational checks, proper handling of the tool, and adherence to college and departmental safety guidelines is also stressed. The script outlines the correct use of the sander, including the adjustment of the belt tracking and the importance of maintaining a safe workspace, free from hazards and with adequate space for material movement. It also details the operation of the sander's on/off switch and the use of a spark guard.
🔧 Operational Safety and Sanding Techniques
This paragraph focuses on the operational safety checks required when using the metal sander, including keeping hands away from the sanding surface, using light pressure, and supporting the work piece with a tool rest. It also discusses the correct technique for disc sanding, such as keeping the work piece on the downward spinning side for best results and sanding parallel to the wood grain. The paragraph provides instructions for changing sanding belts and discs, ensuring they are properly aligned with arrows indicating the direction of rotation. It also mentions the importance of documenting hot work in a logbook to prevent potential fire hazards in a shared wood and metal shop environment.
🔥 Hot Work Documentation and Metal Waste Disposal
The script explains the necessity of documenting hot work in a logbook, detailing the process, personnel involved, and the duration of the work. It describes the procedure for handling hot waste, including the use of a hot trash bucket for cooling down metal shavings and scraps before disposal. The importance of segregating metal scraps for recycling and using designated bins to prevent the risk of fire from combustible materials is also highlighted. The paragraph concludes with instructions for storing short pieces of scrap steel and the proper disposal of hot trash.
⚠️ Hazards and Equipment Maintenance
This paragraph outlines the potential hazards associated with operating the metal sander, such as skin and eye contact with sparks, metal and wood chips, dust, and the risk of losing control of the workpiece. It advises the use of protective eyewear, dust masks, and hearing protection due to the high noise levels generated by the tool. The script also stresses the importance of not using faulty equipment and the proper housekeeping practices, such as turning off the machine, cleaning it, and disposing of hot trash correctly. It provides guidance on the use of a dust collection system and the proper storage of small cut-offs and scraps.
🧹 Tool Maintenance and Cleanliness
The final paragraph emphasizes the importance of maintaining tool cleanliness and the surrounding work area. It provides instructions for removing and cleaning the tool rest, blowing debris out of the machine, and ensuring that the tool rests are correctly positioned relative to the sandpaper. The script also mentions the need to adjust and secure the spark shield on the grinder and to keep essential items like cutting oil and the hot work logbook accessible. It concludes with advice on sweeping the work area and disposing of hot trash properly to maintain a clean and safe working environment.
Mindmap
Keywords
💡Belt and Disc Metal Sander
💡Safety Glasses
💡Hearing Protection
💡Dust Mask
💡Pre-operational Safety Checks
💡Tool Rest
💡Belt Tracking
💡Hot Work Log Book
💡Hot Trash
💡Housekeeping
Highlights
Introduction to the belt and disc metal sander and its appropriate size for small metal projects.
Comparison between the metal sander and bench grinders for different metalworking tasks.
Safety operating procedures and their importance when using metalworking tools.
Comprehensive safety instructions available in tool and equipment user manuals.
Mandatory use of safety glasses and recommended safety goggles for protection against airborne particles.
Requirement of hearing protection for extended use of the metal sander.
Necessity of a dust mask due to fine airborne particulates.
Guidelines for containing long hair, neckties, and avoiding loose clothing while operating the machine.
Prohibition of wearing rings, watches, and loose jewelry during machine operation.
Use of leather or work gloves to protect fingers from accidental contact with moving parts.
Pre-operational safety checks including familiarization with machine operations and controls.
Instructions on using the appropriate sander for the job size and adjusting the table or tool support.
Explanation of how to use the on/off switch and the quick stop feature of the sander.
Importance of maintaining a safe distance and avoiding contact with sharp objects during sanding.
Demonstration of how to properly sand a one-inch square tube without causing metal to curve.
Operational safety checks to be performed every time the tool is used.
Procedure for changing belts and discs on the sander, including unplugging the tool.
Use of the hot work log book for documenting metalworking activities to prevent fire hazards.
Proper disposal of hot trash and metal scraps to prevent fire risks.
Awareness of potential hazards such as skin and eye contact with sparks, metal chips, and dust.
Emphasis on the importance of housekeeping and maintaining a clean work environment.
Instructions for storing scrap metal and ensuring only clean metal scrap is kept for future use.
Final emphasis on the importance of safety, cleanliness, and proper documentation in metalworking.
Transcripts
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do
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this is our belt and disc metal sander
most of our metal projects are small and
this is the appropriate size either this
or the grinder
the bench grinders behind me one there
and one here
are the best things for metal usually
you're just cleaning up some cuts and
some edges on
some small stock before you're welding
it usually it's one
one inch square tube or one and a
quarter inch square two or one and a
half inch square tube
we don't normally do a lot of stuff
that's much much bigger than that
and if it is bigger than that you can
get a hand grinder or some other
grinding and clean
metal cleaning tool to do that safety
operating procedures are posted on the
tool or next to the tool
these procedures represent the most
important safety operations and
considerations while using this tool or
equipment
but are not intended to be comprehensive
coverage of
every possible use for more complete
safety instructions
please refer to the tool and equipment
user manuals
do not use this machine unless you have
been instructed in its safe use and
operations
and you are complying with college and
departmental shop
safety guidelines and procedures
safety glasses are required at all times
while using this tool
safety goggles are recommended due to
airborne sawdust or metal particulates
hearing protection is required for
extended use
for short periods of usage hearing
protection is recommended
a dust mask is required due to fine
airborne particulates
long or loose hair neckties and loose or
baggy clothing must be contained
tuck in your shirt tie back or tie up
your hair
roll up your long sleeves or remove your
jacket or hoodie
all together rings watches and loose
jewelry should not be worn while
operating this machine you may wear
leather or work gloves to protect your
fingers from accidentally coming into
contact with moving belts
and discs pre-operational safety checks
locate and ensure you are familiar with
all machine operations and controls
controls and adjustments may vary from
tool to tool
particularly among different
manufacturers of the same type of tool
use assigned metal sanders for metal
sanding only
use assigned wood sanders for wood
sanding only
check your sandpaper for flaws
imperfections wear
or damage replace as needed
adjust belt tracking as needed
hold small pieces with the pliers or
vice grips in order to keep your fingers
away from abrasive surfaces
use the appropriate sander for the size
of the job
adjust the table or tool support to be
no more than 1
16 of an inch from the belt or the disc
check your work spaces and walkways to
ensure that no slip or trip hazards are
present
pick up any cut off scraps pick up
sawdust regularly
your work area should be three to four
feet larger than the length of your
stock on all working sides of the tool
this allows you to move and adjust your
material freely
as needed keep the table and work
area clear of all tools metal cutoffs
and hot
trash the on off switch is located over
here
the red button is a quick push it and it
stops
you have to pull that red knob back and
then you have access to
a green button and a go and a stop
button the green button is completely
covered up with stuff
can't even see that it's green but it's
the bottom one here and the stop one is
the top one
so you have to flip that back you push
the go button
and then you can stop it
like that belt sander
disc sander not a work rest
so don't use that as a work rest this is
a spark guard this is
there to keep the sparks and keep them
from flying in your face
the tables are adjustable you can loosen
up the
the knob here the handle there or the
one over here
and you can adjust them to different
angles they're at 90 degrees square i'm
going to leave them right now because i
don't want to mess them up
so again this is coming down this way
spinning down like this
so that means from this half to this
half is where we can
use our sandpaper we can't go over here
because if we go over there it's going
to
pull up and we don't want it to pull up
we also want to be aware
of little sharp objects and not poke too
aggressively into sharp objects
i've seen these discs get really
thrashed and this one's held on by
velcro and the velcro will get thrashed
underneath
and then it's a whole lot more work to
change and repair
so this is one inch square tube and this
sander is pretty much the right size for
just cleaning off those burrs
and all that extra garbage on the end
not much to it that's pretty much it if
i try to use the round part of the belt
here to clean this
up i'm actually going to start to curve
my metal
because that this is curving so this is
really designed for
contact pretty much down here some flat
stock or quarter inch stock
or something like that something that's
not going to get caught in there and
again these gaps
should be as small as possible
about 16 16 of an inch and this one's a
little too far away
so i'm gonna move a little bit closer
without touching
so when i'm doing it like this i'm
actually
grinding out that bottom part right
there i'm not grinding this side or top
or the other side
just grinding here right in there
grinding there if this
if i'm doing this i'm doing this surface
so i'm doing that one
that surface that surface
just like that
operational safety checks these are
safety checks you must be aware of
at all times while using the tool and
you must check them and perform them
every time you use the tool on every
single operation
or cut keep your hands away from the
sanding surface at all times
use light pressure only you should not
have to apply excessive pressure in
order to get the tool to work
always use the tool rest to support the
work piece
never do free hand sanding which is
floating the piece away from the tool
rest
keep the work piece moving across the
sanding surface
to avoid heat buildup which can
prematurely wear out the abrasive paper
and also burn the work piece
for disc sanding keep the work piece on
the downward
spinning side of the disc for best
results when sanding wood
sand parallel with the grain
keep hands especially the tips of the
fingers away from belts and discs
and any moving parts watch belt tracking
during use adjust
as needed
if i need to change the belts on this or
the discs
we need to unplug it and it's plugged in
down below
unplugged it doesn't work
so first thing we got to do is take this
off and this just comes off with
this one knob and this lifts up and out
just like that
this is velcroed on so they just velcro
off and the velcro on
this is our box of sanding discs for the
bailey sander and this is a
bailey brand
and i've got hundreds of them so don't
be afraid to
replace them as needed they are in the
tool room
on top of the sanding paper and i've got
it labeled for bailey disc
belt sander only
i have a supply of belts as well
these do have arrows and you need to
make sure the arrows are pointing in the
way
that the belt is running so the arrows
are pointing this way
so i need to put it on this way this
belt is not
in bad shape so i don't really need to
replace it
but there is a lever in the back
that loosens up and then this slides off
just like that and slides back on
the tracking is fairly well set so i
wouldn't adjust the tracking if you need
to get the tracking adjusted
come and find someone this one is real
easy to
get finicky and
right back into where i wanted it
belt and disc chandra changing easy
this just slides back into place
and ideally unless i have a lot of
wiggle room here so i'm going to
put it exactly where the table should be
not touching the discs or the
and tighten it down
so depending on how this is tightened
and how where this is positioned that's
going to affect the
accuracy of these two tables it does
have some wiggle room but it does
lock down really nicely
plug this back in
whenever you're doing metal work you
need to
use the hot work log book and log all of
your
work in the logbook document it
the log book has a date
location of where you're doing the work
time started
names or personnel doing the work tools
and work performed that's where you
describe what you're doing
time ended hot watch begin
hot watch end and then you initial it
we're working in a wood shop here and
whenever we're doing
welding or metal work or work with
sparks we have the potential for sparks
to fly
into sawdust and combustibles
so because of that we need to have
documentation on the hot work that we do
and this log book is one step of
documenting the hot work
and it tells us who did what when and
it's all all documented
and the the key thing here are these
last two columns
hot watch begin and hot watch end
because we are in a space where there
are combustibles
we're not in an exclusive metal working
shop we have lumber we have sawdust we
have
all these things that are potentially
combustibles with fire
we need to have a hot watch at the end
of every day
when we're doing hot work and usually
that hot watch
is two hours before the end of your work
day
the theory is that within two hours you
would be able to
notice that something was smoldering in
the trash can or in
under some pile of sawdust or something
so
if your end of your work day is planned
to be five o'clock
you need to stop your metal work at
three o'clock
we've got to follow these guidelines so
that we don't burn the place down we
don't start fires and we
can continue to do these things safely
so
your hot watch begin and your hot watch
end you have to document it you have to
actually have someone
who looks in on the space and is present
and checks and makes sure that there's
no fire
or smoldering related to the hot work
that was performed
that hot work log book
is going to be here on the grinding
table
likewise when you collect your hot trash
you don't want to throw your hot trash
into a trash can with combustibles
so we collect all of our grindings and
shavings and metal parts and we put it
into the hot trash bucket this is a
metal bucket it allows it to smolder and
burn and cool down and then once it's
cooled down we can throw it away
but we always let it sit overnight or
for some period of time before we do
that
it's got some metal shavings and all
that sort of stuff so don't throw metal
shavings
and don't throw metal scrap into the
general trash can with combustibles
this is also sitting here on the table
for collecting hot trash
there were some scraps of metal in here
we do have a bin for collecting
metal scraps and there is a trash can
here that says metal recycling only
[Applause]
and that's where we want to put all of
our metal scraps
empty the shop metal collection bin into
this larger bin
in the basement we collect metal for
recycling and send it to facility
services when the basement container is
full
these are potential hazards to be aware
of while operating this tool
skin and eyes can come into contact with
sparks or
metal and wood chips and dust
contact with abrasive belts discs or
pads can cause skin abrasion
and more serious injuries losing control
of the workpiece is also likely which
can lead to injury
and damage to the work or to the tool
flying
chips sawdust and metal particulates
could cause eye
injuries always wear protective eyewear
while using this tool
sanding tools create inhalation hazards
from sawdust and fine particles
always wear a dust mask or respirator
protection
noise levels can rise above 100 decibels
protect your ears by wearing hearing
protection while using this tool
do not use faulty equipment if something
is not working properly
or you suspect that something is wrong
with the tool or machine please report
this to your instructor and to the anl
technical director
do not force the sander never freehand
sand always use the tool rest to support
the work piece
housekeeping stay with the machine
until the belt or disc comes to a
complete stop
blow dirt and dust out of the belt disc
and motor housing with clean
dry air sweep up all metal shavings and
fine dust
and place it in the hot trash bin leave
hot trash
in this bin for at least 24 hours before
disposing of it in the regular trash
use a dust collection system when
available we do not have dust collection
designed for metal working tools
sanders and grinders do not hook up a
wood dust collector to the metal working
tools
put away all small cut-offs
small scraps can go in the bins under
the grinder table
scraps that are too small to save should
be collected in the metal recycling bin
[Music]
another scrap of metal that belongs
under the table
short pieces of scrap steel are stored
under the table
scraps that are stored here are in the
12 inch to 30 inch length
if they are shorter than 12 inches toss
them in the metal recycling bin
if they stick out too far from the table
either cut them down to fit
or take them to the basement metal
storage racks everything under this
table is miscellaneous small scrap
and is available for props projects for
welding practice
or for other uses be sure to only put
clean metal scrap here
if you have finished welding practice
toss your metal scrap
in the recycling bin dust off your
countertops
and the shelves below
you are collecting hot trash so dispose
of this in the hot trash container
the best way to sweep off the table is
to remove everything from the top
blow dust and debris out of the tools
regularly
always wear dust protection while doing
this you don't want to breathe that
stuff
into your lungs
remove the tool rest on the belt disc
sander
blow debris out of there to keep it
clean
remember when returning the tool rest to
position make sure that both
tool rests are no more than 1 16 inch
from the sandpaper don't forget to blow
dust out of the lower counter and the
scrap storage
do the same for the other side of the
table
the spark shield on the grinder was
loose and out of place
so i adjusted it and tightened it
again don't forget the dust down below
these two oil cans contain cutting oil
and store in the middle of the grinding
table for easy access while
using the drill press or other cutting
tools
keep the hot work log book on the table
and available for the next person to use
it
return the hot trash container to the
clean table top
sweep up around the work table
this is also hot trash so it should go
into the hot trash container
not in the general trash cans
[Music]
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