Surface Grinder Attachment For My BIG Belt Grinder

Making a surface grinder attachment and permanent magnet from start to finish.
Surface grinders are used to make things flat. This DIY one I built is capable of grinding flat within 0.1mm (more like 0.05mm) wich is enough for what I'll use this for, I might be able to get better results with finer grit belts but all I have for now is 40grit and it's already adequate for my needs.
Permanent magnet is made of 20 strong neodymium magnets size 50x10x5mm and can hold at least 10kg of pulling force overall.
Linear rails are 500mm MGN12. Probably not the best kind of slider for this application but it works for now, we'll see how they stand time and dust.
I designed this myself but I have been inspired by ‪@RedBeardOps‬ for the magnet construction and by ‪@BIGDOGFORGE‬ for the hinged thickness adjustment. They both have great videos about their surface grinders so I highly suggest to check them out if you plan on making something like this yourself.
0:00 Contact Wheel
3:36 Idler Wheel
4:13 Hinge Plane
4:50 Feed Assembly
6:37 Permanent Magnet
12:20 Slider
16:05 Test
Thanks a lot for watching, I hope you liked the video!
Suggestions and comments are welcome.
Leave a like and share to anyone who might be interested!
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[@nomad8207]

Ok i was going to sleep now but after watching this i want to get back to my workshop and try this very ingenious

[@hamidmohseni27]

Q1 R

[@stankrieger3137]

yep since the shop and YT, there is no sleeping/ Even when I give up and try to sleep I dream of what my next tool will be.

[@RedBeardOps]

Hot damn, this build was so good man! So many brilliant additions! The custom shaft, the pouring of the chuck and leveling of the magnet with epoxy... the feed mechanism that is spring loaded. Gosh darn, truly an excellent build! I'll be sharing this one for sure.

[@sudo_nym]

As soon as I. Saw this video drop I thought of you, James! You beat me to it. 👍🏻👍🏻👊🏻

[@RedBeardOps]

@@sudo_nym Man this was an excellent build. Can't say it enough. I shared it up on the bladeforums thread for SGAs

[@sudo_nym]

@@RedBeardOps 😎✌🏻👍🏻

[@eric.is.online]

You and Make it Extreme share a common theme: you make the tools you need to make cooler projects which means you can make more tools leading to even cooler projects. It's awesome watching you get better and better.

[@lvd2001]

They are both excellent - but He is better than Make it Extreme - in my opinion

[@JarrodBush-Creator]

Legend has it, Blackbeard is still flattering objects to this day... Great project!

[@thewolfin]

He flatters objects by building things with them!

[@lewissammons]

I must say you have gotten quite skilled at this casting business, it's not an easy talent to acquire. Thanks for sharing!

[@Nerdforge]

That's genius, very impressed by this awesomeness! That precision must be sooo nice to have

[@dalekify]

What precision?

[@AJ-ls2hu]

@@dalekify to be able adjust everything to suit the work piece and make blanks super flat using just a belt sander and nothing fancy

[@TheBvine]

Ingenious, your projects never disappoint. This one is the best yet IMHO

[@KamalAdnanTheFirst]

I always watch your videos for a kind of enjoyment that is different from the usual entertainment I go for. They are all very soothing, honestly. I've watched some of your videos to sleep. Basically what I'm trying to say is thank you. Your works are such fun to see.

[@wheelchairboy65]

Black Beard, that is a great add-on to anybody's belt sander, you sir are very smart. One of these day's I'm going to make myself a belt sander, then make this attachment to go with it. There are so many uses for it, card scrapper's for wood working, homemade knife blade pitch & shim stock to name a few. Thanks for sharing with us, great job.

[@saxwaxed]

I’ve rarely seen something as cool as this , well done it’s an awesome work !

[@shaman5433]

Nice project. Small suggestion: You may want to think about replacing the magnet with an electro-magnet which is powered up when starting the grinder (or via switch). That way you easily can remove the workpiece and it also makes it easier to clean the metal-dust.

[@vickipease6653]

Wow! There is no end to your goodness! Your skills are outstanding! Thank you for sharing your videos.

[@awworkshop3936]

I wish i could have this belt grinder 😍

[@Christmas77777]

This man is a Genius!

[@purplebug5051]

I agree

[@jonbottoms8988]

Flatness is real! Very hard to achieve consistent flat surfaces with projects. Your design is the best I’ve seen yet. Very impressed sir

[@BIGDOGFORGE]

Thanks for the shout out my friend, and an outstanding job on the grinder, keep up the awesome work...

[@Edwinthemountainman8454]

Realy cool

[@pewdiepie200m6]

wot

[@tinkeringaround6241]

Very impressive! I was surprised by the accuracy you got out of the hand built grinder. Nice job as always on the video

[@Donorcyclist]

Great work, and I love the flattening of the scales using the attachment! Kudos!!!

[@TomatePasFraiche]

Thank you for showing us your HUGE belt!

[@andymiller5611]

I don't know how long I've been watching your videos but I find your work and skills fascinating! I wish I had a fraction of your knowledge and skills! Amazing, dude! Keep up the great work! 🍻🤘💜

[@WiseCrafts]

This change just got better and more useful 👍👍

[@wolfparty4234]

I love it!!! Such a simple design! Well you make it look easy..! Lol you’ve definitely inspired me on a lot of projects

[@acidspermdicktears]

Wow, man, that cast, perfect. Great job!

[@robertgray9802]

You are a genius there's no way I could ever think of stuff like that I just couldn't

[@stephenkeefer3436]

Very very clever ! You saved a bundle of money by doing that. Smart man!! Rock on brother !

[@rirkc]

Genius level right there...

[@MrSoloun]

Great build, simple yet innovative for the how to, really good vid, thanks for sharing it.

[@laragwen102]

I LOVE this video. So ingenious and well done. Thanks for sharing this with us.

[@RezanciToTokyo]

The GLOVES 🤩🤩🤩🤩

[@lawrenceogden8682]

in the belt business for 30 years in the uk that is the best machine and fixture ever

[@tomsdreamshopworx]

Really nice work. Definitely picked up a few tips watching this.

[@WoodfulProjects]

a really nice feature added to the backstand. well done.

[@Krushard]

Damn, the cast was so smooth!

[@BsNegou]

The best D.I.Y channel

[@ALI-fj1xf]

I watched most of your videos , you're just AWESOME 👍 Love 💗 and respect from Iraq

[@davidallred9143]

Bloody brilliant. Hands down my favorite channel on KZbin!

[@douglasfathers4848]

Your work is far more superior to what I do but the inspiration you generate is awesome.(:

[@sonyhk3824]

Awesome work keep it up man, We learn a lot from these bright thoughts. Cheers

[@david-onearmedknifemaker-8955]

And to think… the hundreds & hundreds of builds we’ve seen go back to a simple guy who sat researching until finding the parts! Oh yeah… that was me! LOL. Still, we owe the genius design Travis Wuertz.

[@jefsplt1973]

No word except : good realisation

[@justinwilsoncustoms6520]

Dude that’s amazing !!!

[@gean.knives]

Very intriguing using a router. I don't have a mill. Will be saving this video.

[@coltoncook4058]

That is sooo AWESOME!

[@Watchyn_Yarwood]

Pure genius!

[@ericstoever9577]

That’s really damn cool!

[@wayneoconnell5531]

You never cease to amaze me 👏👏👏🇬🇧🏴󠁧󠁢󠁥󠁮󠁧󠁿

[@bobpharris6179]

Great design. That is awesome!

[@chrisgenovese8188]

My dude here takes diy to the next level. Impressive would be an understatement.

[@angelomarcolinohenriquedes2772]

Você é um gênio dos ferros! TAMO JUNTO!!!

[@ALPACABOWLCOMPANY]

Sweet addition to an awesome machine. 🤘🤘

[@benneisam]

I like how you supported the chuck rail on both sides. Fight deflection.

[@waltermelyon4300]

Smooth.

[@aldenunion]

Envious,are levels to this stuff.... Salute!!!!

[@mcorrade]

absolutely brilliant

[@freestyla101]

As always, very clever my man!

[@nrette]

What a good maker, ingenius and so 👍

[@WastedFrom1976]

I can only imagine the satisfaction when you need to grind something and you use this.

[@user-wo6ty7yu1x]

As always great!

[@lovejcdc]

Great video and I bet that is a real game changer for flat grinding you blades etc.

[@gersonoliveirafaria9106]

Isso é trabalho de mestre!!!!!

[@distracted_visions7095]

Fantastic!!

[@THEWORKSSHOP]

I am super impressed by this. Really cool!

[@hosshoffer7579]

Very ingenious. Next add a wood magnet. ; )

[@stormkhan4250]

That's old news, its called wood glue. ;)

[@hosshoffer7579]

@@stormkhan4250 Wood glue... interesting. Tell me more of this exciting product.

[@telekommotorrad9065]

Excellent! The Mighty Shurap will be pleased with your work! 😀

[@rottrules]

Well done, very impressed

[@dylanmcnew4741]

Bro I missed you

[@michaels.8663]

That was amazing.

[@eddy94400]

Best maker !!!!

[@JJGuccione]

That's one righteous project!

[@klaasbloem]

Great thinking!

[@Haamome]

This guy always amaze me.

[@jerryjohnsonii4181]

Very impressive !!!!!!!!!!!!!!

[@yeagerxp]

Excellent work👍👍👍. Thanks for sharing

[@islanderkh3254]

Great job 👍 I will bring this idea to my shop 🤩 thanks so much for showing us 😊

[@horatiohornblower868]

Next step: electrifying the magnetic sled.

[@andreaboggia]

i think it's a good idea...

[@johnjacobjingle8302]

Microwave transformer..

[@davidkbailey]

A successful cast on the first try!?! Well done!

[@kitsvn]

I love your solutions!

[@woongtv-naturehealing273]

You have excellent technology and creativity. I'm honored to be your best channel friend. Have a happy Monday. 👍👍👍🤙🤙👌💯

[@MrDoyley35]

Very nice.👍🏻

[@dawdawsd1]

some truly original ideas here, well done

[@mandem9319]

brilliant!

[@kolbaska19]

Impressive job!

[@fhedtv2809]

Профессионально подошло к решению своих проблем, респект!

[@rainervolk666]

Sehr schöne Arbeit, dein Bandschleifer wird immer noch mehr zum Allrounder Hut ab !! 💪👌

[@jorge.andrade.viola.]

Saudações Mestre..... Obrigado por compartilhar seus conhecimentos.... Sou seu fã.... Abraço...

[@tooleater3562]

I enjoyed this video so much... such an impressive veriety of skills and disciplines involved! I found you through your collaboration with My Mechanics 👍🏻

[@ordureisi]

Perfect video bro (i am from turkey 🇹🇷🇹🇷🇹🇷) love you

[@jamesball7322]

Great build,like watching you do your thing

[@selulancie]

Really clever!

[@paulottowell8835]

Thanks for sharing, this looks the mutts nuts, going to start one later today :)

[@jefflyon100]

I almost stopped watching when I saw the 3d printed chuck blocks. Then you dusted them and out came the sand casting form, f--ing awesome! Great job building the sander/grinding attachment! Here comes the jackass comment part about what i would have done different...I've been seeing this trend on a lot of these attachments, the use of one bearing block on a rail. I've even seen it done with the chrome plated round shafts with the open linear bearings, they are a bad choice all around though for this application. It's significantly less of an issue on your build compared to the round shafts but it's best practice to use 2 blocks per rail. The bearing blocks have clearance between the rail and balls, it varies a lot depending on the quality of the rails but its usually a few thousands. Using one bearing block you'll find the magnetic plate can rock up and down over its length. By using two rails you eliminated that issue accross the width (many only use one rail and one block, opens up many issues), adding two more bearing blocks will eliminate any rocking over its length and stop abnormal wear/failure potential. I custom build machinery for a living (industrial millwright/machine builder) and we use linear rails on almost every machine, sometimes multiple axis depending on the application. Most being heavy loads moving at high speeds. Regardless of load or speed though industry practice is to use 2 bearing blocks per rail. It makes for far more accurate movement and eliminates the high wear and failures you see when single bearing blocks are used. Its something to think about anyway if you start having issues holding tolerances after using it awhile. It's possible the bearings could last thousands of strokes before any issues are seen and the grinder might not see enough use to warrant any changes. Ok, jackass commenting done. I really do love the badass beltsander and the surface grinding attachment, the most original by far for flat/parallel grinding!

[@ParsMaker]

great work , thanks for shear

[@ahmedrazzak6019]

Excellent work mate

[@dmblade]

great job!

[@robertgrell486]

Beautiful work 👍

[@loudevon624]

You should add cheap masking tape over the exposed magnets to make cleanup of the filings easier. But otherwise this entire sander project is amazing!

[@chasemichaelpaulson]

If that thing doesn’t have a name then it should be called a zebra bar.

[@_BLANK_BLANK]

I know this is old. But just wanted to let you know, thats called a magnetic chuck.

[@edanpino-xt1ph]

That’s a magnetic chuck, as the other guy said, but I actually quite like that name

[@danyarabdulla3556]

Bro I haven't seen your vids in such a while grate to know you are still going

[@andreaboggia]

Wow you have maked a sort of tangential grinding!

[@Protokollon]

I love your attention to detail