HS267 Herbert Junior Mk2 surface grinder Part 16 - making sparks

A series on restoring my latest machine - a Herbert Junior Mk2 surface grinder. This is the final part.

[@andrewdolinskiatcarpathian]

Hi Paul. Great tip about using a dog tray as a drip tray. Definitely going to look at those. Well done on completing the surface grinder restoration. Brilliant series. I for one hope that in time you find another machine to add to the workshop and a new series ensues. 👏👏👍😀

[@Florian5120Pro]

And we all knew buying never ever a new mashine for the shop was that type of English humor every one loved 😂

[@HaxbyShed]

Well Florian at this moment I do not have plans for another machine but when an opportunity presents itself I'm sure I'll be tempted. So it's only 'never' until it's not never. Cheers

[@mftmachining]

Good job, Paul. Things are coming together. This enhances your possiblilities a lot.👍

[@HaxbyShed]

Cheers 👍

[@hilltopmachineworks2131]

You got sparks! Congratulations on finally getting it done. The color of the machine is top notch.

[@HaxbyShed]

Yes it's a great colour Tom. I'm glad I went through the trouble of painting over again. Cheers.

[@TheAyrCaveShop]

Woo Hoo it's Alive ! Congrats Paul.. That is a strange reading on the table.. I've spent hours trying to salvage an inch or two space...joys of a small shop. Enjoyed, Cheers....

[@HaxbyShed]

Hi Dean, I need to have a proper look at that grinder table. I can't believe it's a wedge or a banana. Cheers

[@ThePottingShedWorkshop]

No more machines eh? Trust me, you'll give in. I have no more room in the workshop, the garage is full, but a friend(!?) suggested I take a look at an online auction. I've now got another machine waiting to be refurbished!!

[@stephenperry5849]

I recon there's already something g in the annex waiting to be introduced to us! 😂

[@HaxbyShed]

Hi Stephen, nothing hidden away yet. To be honest it will be good to have a few weeks with no pressing project/series. But I can never predict when a machine will fall into my path. Cheers

[@kooldoozer]

The wheel slips a little bit in the blotters every time you turn the motor switch on. Do it a few times on and off, then measure the wheel runout. You will see a few thousandths. You can dress it for sure, but your balance goes out the window. This is why all my grinders have VFD drives. Soft start takes care to eliminate the rapid start. Slowing the wheel with the VFD is also great to dress the wheel at a few hundred RPM. Grit does not go all over, and you can dress a spiral into the face of the wheel to clear swarf and prevent loading up the wheel. It does work well. So many advantages to a VFD. I know you have settled on a phase converter, but you can't know until you go through a process. Cheers. ----Doozer

[@StuartsShed]

A really excellent rebuild - top final result. I have enjoyed the in depth nature of the series, and appreciate you taking the time to present it this way.

[@HaxbyShed]

Thank you Stuart. Fact is when I'm making a video every week it becomes quite detailed anyway reflecting real life. I think also very few jobs are totally simple and there is always many layers of detail below the surface worth sharing. Cheers

[@jagboy69]

Great job getting the old girl up and running! Tip for you, flip it on and let it get nice and warm, especially before truing the wheel or grinding in stuff like chucks and critical stuff. Things like bearings change as it comes up to temp! Ya didnt show it, but every time that wheel gets removed, run the diamond again. It's gonna be a great little grinder for the kind of stuff you mess with. I picked up a B&S 6x12 on fleabay and while I don't use it but a couple of times a year, it's a sweetheart and doesnt take up much space. I find surface grinding fun and relaxing.

[@davidberlanny3308]

Well done Paul, Its been a great series. After the last no there is always a yes!! All the best!!

[@HaxbyShed]

👍 Thanks for watching it through David. Cheers

[@MyLilMule]

The joys of having a small shop space. :)

[@HaxbyShed]

Hi Greg, yes it's always a shuffle. Cheers Paul

[@TrPrecisionMachining]

good job paul

[@HaxbyShed]

Thank you 👍

[@michaelg7607]

Nice job good lock on the no more machine Paul.

[@yenoh243]

If it’s an American spanner, then it’s definitely a wrench! 😊 Robert

[@HaxbyShed]

Hi Robert, the thing about Brit vs American tool names is you can often link them to please everyone like a "pillar drill press" or a "spanner wrench" 😁 to avoid the Zed/Zee thing I say up/down axis. Why highlight a difference when you can just avoid it? My dad had quite a lot of American tools which I guess came over during or just after the War. Cheers

[@julias-shed]

Looks great 😀 looking forward to see the next new machine 🤣

[@HaxbyShed]

Hi Julia, no firm plans at the moment but we never know what's around the corner. Cheers

[@Workshopfriend]

Thanks, Paul, for sharing your journey with this project. Good to see it working. Strange that the thickness of the table isn't parallel but the chuck seems to compensate for it!

[@HaxbyShed]

Hi Clive, when I get a bit of time I'm going to investigate that further. It's quite unexpected but clearly the table compensates so it must have been like that when the table was dressed. Cheers Paul

[@SeanBZA]

The magnetic chuck was trued on the table, getting rid of all the errors on the table.

[@mikegray9181]

If you can't dress the top of the magnet because of the travel of the machine , perhaps you could shim it to closer tolerance. Very nice job.

[@HaxbyShed]

Hiya Sean, I need to do further investigation on that table and indeed the chuck. I find it hard to believe Herbert would have made it like that. Cheers

[@SeanBZA]

@@HaxbyShed Possible, but those tables are normally used with fixtures, so the fixture would be surfaced with the table to get it right, the table just has to be close enough so the fixture does not need much to true it.

[@russellwall1964]

Since you mentioned things in the background of a shot, I noticed your drill bit sharpener. The brand I have from the US is ‘Drill Doctor’ - and I love it!! Great video and wonderful to see you finally get that gorgeous machine in place ready to use!!

[@HaxbyShed]

Hi Russell, that is a Drill Doctor 360X and to be honest I do not get on with it very well. Results are a bit random and it is very hard to get any sort of clearance angle. I'm possibly going to have one last try to get it working reliably. It was expensive. Cheers Paul

[@albertfuller8624]

See if you can find Accu-Lube push up stick it works great on grinding wheels helps keep the work cool,love the channel all the best from sask Canada Albert .

[@danieltaylor3611]

Iv got the same grinder and mag chuck. Simply mark out the max working area on the chuck face and relieve the rest around the edge on the mill. You only need to take it down 0.5mm and that will give you plenty of material to resurface many times before you have to mill it again

[@bostedtap8399]

Its alive, table or feed direction doesn't matter, surface speed delta or differentiation is very high. Cheap vacuum cleaner tip, look up Ash cleaners, ref fire ash. Love the dog tray solution 👌, I did look at a grow bag tray recently at my local hardware store; interesting on LED driver. Next video: powered X axis reciprocating facility 🧐🤓🦾. Thanks for sharing.

[@HaxbyShed]

Hi John, I've googled the ash cleaners. Early days yet but If I use the grinder a lot I'll get one of those. Cheers

[@bostedtap8399]

@HaxbyShed Hi Paul, I was looking for a basic vacuum for wood working, the one I purchased was a Rocwood 20 Litre 1200 watt, model RWAC3; currently £ 49 on Amazon, or 13 coffees ☕️. It has an aluminium lined hose, OD is 34/35 mm. I have it coupled with one of those cyclone vortex gadgets, not too noisy, and quite good filtration.

[@kooldoozer]

Traditionally chisels are ground in the surface grinder in the opposite orientation that you have. Then use the cross feed instead of the table feed, and the radius of the wheel will be imparted into your chisel edge. This hollow grind allows easy honing on your flat whet stone. -----Doozer

[@RustyInventions-wz6ir]

That grinder works great. Nice work man

[@HaxbyShed]

Thank you Rusty 👍

[@TheRecreationalMachinist]

I'm not buying and more machines. And this time I mean it!

[@HaxbyShed]

Matt my son said he is not buying any more cars, and now he's just bought a 1994 Jag. Another one too good to turn down, apparently. The replacement Passat W8 engine is on the drive, awaiting the swap on that one. Cheers

[@bkoholliston]

Fun video! Never say never.

[@HaxbyShed]

😁

[@neilknight7626]

Never say Never! A bargain might show up!

[@HaxbyShed]

I'm hoping it does 😁

[@argee55]

Never is a long time!

[@HaxbyShed]

😁

[@tomnielsen3661]

I have the same wrench and love it

[@HaxbyShed]

That's amazing Tom. It's a small world. Cheers

[@DavidEvans-qc8ex]

You could always mill a slight relief on each end of the mag chuck you have, just a few thou deep enough for the wheel to clear at the end of each stroke. Instead of looking for a smaller chuck.

[@bostedtap8399]

Good idea 💡

[@HaxbyShed]

Hi David I think that is a good idea. First though I'm going to find out where the error is in that table. I can't believe it was made like that. Maybe it's bowed - but I don't really believe that either. So ...... ? Cheers

[@kooldoozer]

I believe your table has warped from the tee bolts pulling on the slots for a long time. The heads are likely too small. The underside of the bolt heads peen the inside of the tee slots. If there is any distortion in the tee slots that you can see or feel, this is what likely happened. You can fix this, much the same as some fitters have done when rebuilding Bridgeport tables. You can peen the underside of the table (with a hammer) and induce stress on the back side. This balances and counteracts the stress from the tee slot deformation. The result is the table bends straight again. The same process used to camber a beam. You can use spot heating or peening for that. Same idea. ---Doozer

[@tonyray91]

Hi Paul, good to see some sparks. I’ll say this as you didn’t mention it; when dressing the diamond must be just behind the centre line of the wheel I.e on the outfeed side so if it catches the wheel will push it away. If it’s on other side the rotation will pull it into the wheel and you really don’t want that. I take about a thou off per dressing pass and you need to to go a lot faster across the wheel, I go as fast as I can rotate the handwheel this gives a better dress. Yes your chuck is too big as you can’t surface it with the machine, this seems to be a common issue as mine was the same as is my friends. I’d look to swap it out. Do not be in a hurry to surface the replacement as it takes a while to get your hand in and learn what works for you.

[@HaxbyShed]

Thanks Tony. Cheers

[@brucematthews6417]

No more machines, eh? THIS should be funny to watch.... :D

[@HaxbyShed]

😁 ... but nothing planned yet.

[@LockdownElectronics]

Nice job, well done.

[@HaxbyShed]

Thank you Sir, cheers to you.

[@Warped65er]

Good on you Sir. No idea why the table itself is on a taper but if the mag. chuck is ground true then so be it.

[@HaxbyShed]

Hi, it's a mystery that needs further investigation. Cheers

[@alanremington8500]

Haha, good one !!

[@HaxbyShed]

😁

[@chrisstephens6673]

When grinding if you can have the work at an angle you can reduce the heat input. Meaning, if you are say grinding a 6 x1 bit of metal dont have the metal length wise but at an angle on the mag chuck so you have many short grinds rather than long ones, giving the metal time to cool a little. If you haven't come across Adam the machinist, that's Not abom79 by the way, take look as he has some convincing words on grinding.

[@HaxbyShed]

Thanks Chris 👍

[@muddlersworkshop]

Both the drivers had a square inside a square and that means double insulated and safe from line voltage

[@HaxbyShed]

Yes I think it would have been fine but the replacement was so cheap and it was easy enough to change whilst the panel was off. The one that was on was old and salvaged; no idea where I got it from. Cheers

[@melgross]

That height irregularity is always a problem with shaper tables, which is why this design is odd, because it’s longer than the table movement. That’s odd because you’re supposed to bring the table before using the machine. Then you grind the bottom of the vise, without turning the vise on, just lightly hold it with clamps at the ends, pushing at the vise. Then, flip and machine the top of the vise. Some say with the magnet off, but I do it with the magnet on as that’s how it is used. The problem with a long table is that you can’t grind it properly. That’s a design defect. If this were mine, I’d do what the manufacturer should have done, and machine the ends of the table down by about 4 mm. Leave 8” in the middle to mount the vise on. Then you can grind that to level it, as should be done. The problem with just grinding the vise is that every time you remove it, you lose your exact level if it isn’t placed exactly parallel to the table movement. Though it should be parallel if you want the vise guide at the side, and end, to be accurate. Whoever said to get an 8” table is correct. Otherwise you can’t grind the vise either, as you’ve found. You can’t cheat with your vise by removing the stop screws, just to grind the top. It will be ok, but not ideal.

[@paulrayner4514]

👏

[@HaxbyShed]

👍 Cheers Paul

[@coplandjason]

Well done Paul, good to see it making sparks now. PS, your claim to never ever buying another machine isn’t fooling anyone :-)

[@HaxbyShed]

Cheers Jason 👍

[@donepearce]

Unfortunately you've destroyed the temper on that chisel. It needed cooling between passes. Nice idea though.

[@HaxbyShed]

Hi yes indeed you are right. I'm going to set up some spray coolant. I have the nozzle already so I just need to plumb in the air. Cheers

[@adhawk5632]

Ive got a vevor 6x12 inch magnetic chuck, ask them if the sell a 5x10 or 6x6 version. I really like the one i have $220 delivered, i use it on the mini mill, fits sweet on the table👍👌🇦🇺

[@HaxbyShed]

Hiya Adhawk, unfortunately the Vevor catalogue is more limited here in the UK. Cheers Paul

[@philhermetic]

Nice one Paul! So whats the new machine going to be then? Phil

[@HaxbyShed]

Hi Phil, at this moment I don't know. I need a bit of time to adjust now the surface grinder is running. Cheers

[@billdoodson4232]

Would that guy have been "Potting Shed", Paul.

[@HaxbyShed]

Hi Bill, it was this guy www.youtube.com/@machineshopatthebottomofth3213

[@somebodyelse6673]

You don't want to be electrocuted, you don't want to be crushed... what IS on your bucket list? 😀

[@HaxbyShed]

Hiya Somebody, it's getting shorter by the year. Stuff I might have done when I was younger I've lost interest in. Parachute jump - nope. Bungee jump - nope. Fast flashy car - nope. Fast women - can't be bothered. Haxby Shed sponsored world speaking tour - yes maybe but probably need another 990,000 subscribers for that and I'll be expired before then. Cheers

[@RB-yq7qv]

I will give you 2 months new machine day.

[@richardsavage2]

😂

[@HaxbyShed]

We'll see. Both the mill and the surface grinder were 'unplanned' purchases that came from email tip-offs. Cheers

[@SeanBZA]

The first driver is isolated, but likely the manufacturer did not want to pay for the extra insulation to make it pass SELV test. Yes you will never buy another machine for the shop, at least this week.😉

[@HaxbyShed]

Hi Sean, the new one says SELV on it but who knows. You can do anything with a printer these days. The old one had a resistor soldered to the board at one end and sticking up into fresh air at the other - wonder what that was all about? Cheers

[@SeanBZA]

@@HaxbyShed Could be anything, or it was soldered on end to reduce footprint. would need pictures to show and see why though.

[@machineshopatthebottomofth3213]

Just enough space for a vertical bandsaw and they can be had quite cheap………..

[@HaxbyShed]

Hi there I do have a table top vertical band saw which I picked up last year for £45. The sort of thing you see to cut our jigsaw pieces in wood but I think it would also cut metal sheet with the right blade. Cheers

[@mervynprice7009]

Never buy another machine!! I think you have got the Deses. Let me see, little machines can be very useful. A hand shaper can be very useful?

[@HaxbyShed]

Hi Mervyn, my current wish list comprises a belt sander, a parts washer, an ultrasonic cleaner and heat treatment oven. Of all of those I'd go for the heat treatment oven first - but I ain't paying for a new one. But then something else might come along before those. Cheers

[@RobertBrown-lf8yq]

NEVER ‼️‼️‼️ Yeah….. right… 🤣🤣🤣🤣🤣🤣🤣🤣 Robert

[@HaxbyShed]

Well maybe never Robert, cheers

[@RobertBrown-lf8yq]

@@HaxbyShed 🤣🤣🤣🤣

[@lv_woodturner3899]

Talking about stupid sports commentator verbal rubbish reminds me of David Coleman. You are old enough to remember him. He had so many stupid comments that they were compiled into books "Coleman Balls". Good to see the machine making sparks - at last. No more machines - until the next one. LOL I looked up Herbrand. A lot of information at alloy-artifacts site. I cannot add a link or the comment will disappear. The site ends in org. Dave.

[@HaxbyShed]

Hi Dave oh yes I remember David Coleman, Cheers

[@kimber1958]

Hey Paul, you need to seek medical advice, my friend. Or maybe more to the point psychological therapy

[@HaxbyShed]

Doctor, doctor, I keep having nightmares about new machines floating past the workshop that somehow I can't quite reach ...... 🤣😒