Disc Grinders: Difference between revisions

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{{ToolInfoBox
{{MachineInfoBox
|tool name=Disc Grinder
|machine name=Disc Grinders
|image=disc grinder.JPG
|image=disc grinder vs steel.JPG
|synonyms=angle grinder;<br>DE: "Flex", Winkelschleifer,<br>Trennschleifer
|synonyms=angle grinders, right-angle grinders;<br>DE: "Flex", Winkelschleifer,<br>Trennschleifer, "Trennjäger"
|type=power tool
|type=power tool
|access=upon introduction
|access=[[Disc Grinder Introduction|disc grinder introduction]]
|location=[[Metal Workshop|metal workshop]]
|location=[[Location::Metal Workshop|metal workshop]]
|material=depending on disc:<br>[[metal]] ''(except aluminum)'', [[stone]]
|material=depending on [[Abrasive Discs|disc]]:<br>[[metal]] ''(except aluminum)'', [[stone]]
|tutors={{£}}
|tutors=[[Tutor::User:Lukas|Lukas]], [[Tutor::User:Pakue|Patrick]], [[Tutor::User:Luzian|Luzian]]
|similar=[[Rotary Tool|rotary tool]]
|similar=[[Rotary Tool|rotary tool]]
|used with=[[Face Shield|face shield]], [[goggles]],<br>[[Ear Defenders|hearing protection]], [[gloves]]
|used with=[[Face Shield|face shield]], [[goggles]],<br>[[Ear Defenders|hearing protection]], [[gloves]],<br>[[Abrasive Discs|abrasive discs]]
}}
}}
We have a couple of disc grinders in the [[Metal Workshop|metal workshop]]. For small-scale applications, try using a [[Rotary Tool|rotary tool]] before you whip out this beast.
We have a couple of disc grinders in the [[Metal Workshop|metal workshop]]. For small-scale applications, try using a [[Rotary Tool|rotary tool]] before you whip out this beast.


It can be used to cut or grind [[metal]] or [[stone]], depending on the disc used. Cutting discs ''(Trennscheiben)'' should not be used for grinding and grinding discs ''(Schruppscheiben)'' should not be used for cutting as they are primarily reinforced for one of the purposes.
They can be used to cut or grind [[metal]] or [[stone]], depending on the disc used. [[Cut-Off Wheels|Cut-off wheels]] ''(Trennscheiben)'' should not be used for grinding and [[Grinding Discs|grinding discs]] ''(Schruppscheiben)'' should not be used for cutting as they are primarily reinforced for one of the purposes and could otherwise overheat and break.
 
The "King Craft" grinder works with '''125 mm discs'''.
 
[[File:disc grinder vs steel.JPG|400 px|left|thumb|using a grinder to cut steel bars protruding from a wall]]


== Safety ==
== Safety ==
'''CAUTION - the "King Craft" grinder has a switch that will stay on until you push it back to the "off" position, so it could surprisingly start when plugged in!'''
Due to the high amount of sparks generated, it is a good idea to wear a [[Face Shield|face shield]] as a second layer over your [[goggles]]! In addition, you should put on some [[gloves]] and [[Hearing Protection|hearing protection]] before using a disc grinder.
Due to the high amount of sparks generated, it is a good idea to wear a [[Face Shield|face shield]] as a second layer over your [[goggles]]! In addition, you should put on some [[gloves]] and [[Hearing Protection|hearing protection]] before using a disc grinder.


'''Make sure the disc is securely fastened and spins without an offset before cutting anything!'''
'''Make sure the disc is securely fastened and spins without an offset before cutting anything! The manual suggests letting it run for a minute without load, only if there is still no increased vibration after that it is safe to use.'''


Do NOT operate a grinder without its semi-circular collar - it will protect you from a lot of the sparks and shrapnel of the disc (if one breaks on you). Stay away from [[aluminum]], it can reportedly clog and overheat the disc up to the point of explosion!
Do NOT operate a grinder without its semi-circular collar - it will protect you from a lot of the sparks and shrapnel of the disc (if one breaks on you). Stay away from [[aluminum]], it can reportedly clog and overheat the disc up to the point of explosion!


== Discs ==
== Discs ==
 
You may have to bring your own [[Abrasive Discs|discs]] if you have specific needs, but we have some basic ones:
{| class="wikitable" style="text-align: center;"
{| class="wikitable" style="text-align: center;"
|'''tool type'''
|'''tool type'''
Line 36: Line 30:
|'''suggested donation'''
|'''suggested donation'''
|-
|-
|''Trennscheiben''
|metal cut-off wheels (''Metall-Trennscheiben'')
|cutting
|cutting [[metals]] (except [[aluminum]])
|125{{x}}1.2 mm
|125{{x}}1.2 mm
|1€/disc
|1 €/disc
|-
|-
|more
|metal grinding discs (''Metall-Schruppscheiben'')
|will
|grinding [[metals]] (except [[aluminum]])
|come
|125{{x}}6 mm
|
|3.50 €/disc
|-
|sanding disc holder
|[[sanding]]
|''??''
|depends on the [[Sanding Discs|sanding disc]]
|}
|}
We'd also like to have flap discs (''Fächerschleifscheiben'') in the future, feel free to leave us some after your project ;-)
== Available Machines ==
=== Makita 9565 HRZ ===
{{MachineInfoBox
|machine name=Makita 9565 HRZ
|image=
|extrabox=yes
|location=[[Metal Workshop]]
|access=[[Disc Grinder Introduction]]
|tutors=[[Tutor::User:Lukas|Lukas]], {{P}}
|manual=[https://www.icmsmakita.eu/CMS/custom/fi/attachments/user_manuals/User_manuals_EU2/9565HR.pdf Makita]
|used with=125 mm [[Grinding Discs|grinding discs]]
}}
There are two Makita 9565 HRZ disc grinders with 1100W available at the metal workshop. Usually one should be setup with a cutting disc while the other has a surface grinding disc.
<br clear=all>
== Private Machines ==
=== King Craft WS 125 ===
{{MachineInfoBox
|machine name=King Craft WS 125
|image=King Craft WS-125.jpg
|extrabox=yes
|location={{£}}
|access=ask nicely - may be [[borrowed]] [[Category:Borrowable]]
|tutors=[[Tutor::User:Lukas|Lukas]]
|manual=
|used with=125 mm [[Grinding Discs|grinding discs]]
}}
'''CAUTION - the "King Craft" grinder has a switch that will stay on until you push it back to the "off" position, so it could surprisingly start when plugged in!'''
{{£}} [[loan]]ed this machine to the Space for about three years until we were able to buy the better ones. It's not great, but may still come in handy if you need it for a few cuts at home - just ask!
This grinder works with '''125 mm [[Abrasive Discs|discs]]'''.




[[Category:Metalworking]]
[[Category:Metalworking]]
[[Category:Power Tools]]

Revision as of 14:57, 26 October 2020

MachineInfoBox

Disc Grinders

Disc grinder vs steel.JPG
Synonyms: angle grinders, right-angle grinders;
DE: "Flex", Winkelschleifer,
Trennschleifer, "Trennjäger"
Type: power tool
Material: depending on disc:
metal (except aluminum), stone
Used with: face shield, goggles,
hearing protection, gloves,
abrasive discs
Location: metal workshop
Access Requirements: Disc Grinder Introduction
Tutors: Lukas
Pakue
Johannes
Luzian
Similar (More or Less): rotary tool


We have a couple of disc grinders in the metal workshop. For small-scale applications, try using a rotary tool before you whip out this beast.

They can be used to cut or grind metal or stone, depending on the disc used. Cut-off wheels (Trennscheiben) should not be used for grinding and grinding discs (Schruppscheiben) should not be used for cutting as they are primarily reinforced for one of the purposes and could otherwise overheat and break.

Safety

Due to the high amount of sparks generated, it is a good idea to wear a face shield as a second layer over your goggles! In addition, you should put on some gloves and hearing protection before using a disc grinder.

Make sure the disc is securely fastened and spins without an offset before cutting anything! The manual suggests letting it run for a minute without load, only if there is still no increased vibration after that it is safe to use.

Do NOT operate a grinder without its semi-circular collar - it will protect you from a lot of the sparks and shrapnel of the disc (if one breaks on you). Stay away from aluminum, it can reportedly clog and overheat the disc up to the point of explosion!

Discs

You may have to bring your own discs if you have specific needs, but we have some basic ones:

tool type use properties suggested donation
metal cut-off wheels (Metall-Trennscheiben) cutting metals (except aluminum) 125 × 1.2 mm 1 €/disc
metal grinding discs (Metall-Schruppscheiben) grinding metals (except aluminum) 125 × 6 mm 3.50 €/disc
sanding disc holder sanding ?? depends on the sanding disc

We'd also like to have flap discs (Fächerschleifscheiben) in the future, feel free to leave us some after your project ;-)

Available Machines

Makita 9565 HRZ

MachineInfoBox

Makita 9565 HRZ

Machine-default.png
Used with: 125 mm grinding discs
Location: Metal Workshop
Access Requirements: Disc Grinder Introduction
Manual: Makita
Tutors: Lukas
Pakue
Johannes
Luzian


There are two Makita 9565 HRZ disc grinders with 1100W available at the metal workshop. Usually one should be setup with a cutting disc while the other has a surface grinding disc.


Private Machines

King Craft WS 125

MachineInfoBox

King Craft WS 125

King Craft WS-125.jpg
Used with: 125 mm grinding discs
Location: Lukas
Access Requirements: Disc Grinder Introduction
Tutors: Lukas
Pakue
Johannes
Luzian


CAUTION - the "King Craft" grinder has a switch that will stay on until you push it back to the "off" position, so it could surprisingly start when plugged in!

Lukas loaned this machine to the Space for about three years until we were able to buy the better ones. It's not great, but may still come in handy if you need it for a few cuts at home - just ask!

This grinder works with 125 mm discs.