A Better Compound Clamp for the Grizzly Lathe - G0602

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Today we're making a better compound clamp to fix the rigidity issues with the stock clamp on the Grizzly G0602 lathe.
Tools used in this video:
*This site contains affiliate links for which I may be compensated
Shars AXA Quick Change Tool Post Set (eBay*): ebay.us/KXQTcI
Bondhus Metric Hex Key Set (Amazon*): amzn.to/3eqZzwb
Bondhus SAE Hex Key Set (Amazon*): amzn.to/3h9bJLZ
Tegara 690X 6" Mill Vise (eBay*): ebay.us/wjC7Ii
Tegara 690X 6" Mill Vise (Amazon*): amzn.to/3TMDjQb
HFS 1/4 x 6" Parallel Set (Amazon*): amzn.to/3kuPtQj
3/4" Indexable End Mill APKT11T308 (eBay*): ebay.to/3bHHc3A
Brown & Sharpe 1/2" Edge Finder (Amazon*): amzn.to/3ijUniq
R8 Annular Cutter Arbor (Amazon*): amzn.to/3xrRBuR
Steel Dragon 1-1/4" x 2" HSS Annular Cutter (Amazon*): amzn.to/2BluZ4y
Chicago Latrobe HSS Short Letter Drill Set (Amazon*): amzn.to/2PWx0dL
Chicago Latrobe HSS Short Number Drill Set (Amazon*): amzn.to/2Qgss0S
Chicago Latrobe HSS Short Fractional Drill Set (Amazon*): amzn.to/3mkmziD
YG-1 1/4" 120 degree spotting drill (Amazon*): amzn.to/3sVSLgv
Goldenrod 10oz Pump Oiler (Amazon*): amzn.to/3OP0hlD
Mobilmet 766 Thread Cutting Oil (Amazon*): amzn.to/3Qt969z
Chicago Latrobe 3/4" Countersink (Amazon*): amzn.to/3s78x8l
NogaFlex Indicator Holder with Fine Adjust (Amazon*): amzn.to/33FwerY
Raw Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
creativecommons.org/licenses/b...
00:00 Intro
00:47 The stock compound clamp
02:21 A better design
05:22 Test-fitting a 3D printed model
06:29 Squaring the material
08:26 Milling the shoulders
10:02 Drilling
12:25 Milling the window
15:06 Boring in the lathe
18:41 Final assembly
20:41 Conclusion

Опубликовано:

16 июл 2024

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Комментарии : 229

@bobweiram6321 10 месяцев назад

Awesome build! The ending felt abrupt. I guess was expecting a test run.

@jespermller6956 10 месяцев назад

"What's the fun in that" You are absolutely right, it gives so much more to improve something you have, and to know that you did a better design than stock.

@klaernie 10 месяцев назад

Also the learning in it is half the fun!

@Sweetchilliheat18 10 месяцев назад

Well for me it's more about $$$

@joansparky4439 3 месяца назад

1) Stefan also said he wouldn't get a Deckel, sitting in front of his MB4 and 2 months later it was gone and he got a Deckel 2) bigger machines also have issues to solve.. so I don't see an end to "improve things"

@lancer2204 10 месяцев назад

Tool suggestion for the lathe: make an over sized centre for your tail stock, they're handy when you want to enter up on a hole to be enlarged (push the oversized centre into the drilled/bored hole, then snug up the jaws in the 4 jaw, and you'll be pretty damn close to having your part cantered)

@MattOGormanSmith 10 месяцев назад

A live bell centre is probably more useful, but spendy.(cash to buy or time to make)

@konzetsu6068 10 месяцев назад

in this case... time to make = content, content = channel engagement, and hopefully some money from the big red play button guys... also makes it a work write-off ;D

@MattOGormanSmith 10 месяцев назад

@@konzetsu6068 I'm sure any creative accountant is writing off the whole home shop and the electric bill too. Hobby? What hobby?

@joewilson2580 8 месяцев назад

Appreciate everything you do. I'm probably one of the few people that would actually pay to work for you for about a year to learn.

@invertedpolarity6890 10 месяцев назад

Just love seeing a person using their tools and knowledge to improve their tools to make nicer parts. Excellent.

@Pest789 10 месяцев назад

13:41 I love outside the box ways to use tools like this. I've used regular woodchuck router bits as form tools for aluminum in my lathe and it worked extremely well.

@titter3648 10 месяцев назад

Nice idea to use a threading bar to chamfer the backside of the hole in the lathe.

@robertoviana514 10 месяцев назад

I don't own a Grizzly, but I have the exact same POS compound clamp. Good job on the clamp design, explanations and videos.

@tuberroot1112 10 месяцев назад

I really like the calm explanations of each operation revealing tips and good practice. Quietly informative like a technical machining course without being an obvious lecture. Very enjoyable to watch. Very envious of the kit you have to play with.

@BecksArmory 10 месяцев назад

Watching this video just really shows how valuable a power draw bar is. I really need to get one I've been putting it off for far too long

@37yearsofanythingisenough39 10 месяцев назад

They are ridiculously priced nowadays and all they are is an air ratchet on springs. They save a lot of time and I wouldn’t be without mine however if I had it to do over again I think I would have made both of them. There are real good videos on RU-vid on how to do it. Put that money towards a power drive for the knee on your mill which will cause you to really wonder how you got a long without something!

@BecksArmory 10 месяцев назад

@@37yearsofanythingisenough39 I just ordered a power drawbar and power feed for my Y-axis right after posting the coment above. lol I could probably made one but I've put it off for soooo long that now I don't have time and I'm doing a lot of mill work. I totally agree that I need to put a power feed on the knee. That is a total pain in the arm to crank!

@joeldriver381 10 месяцев назад

The reenactment was very convincing!

@Bob_Jones_ 10 месяцев назад

Cant wait to see the results, nice upgrade

@jeffreymarshall5971 10 месяцев назад

"where's the fun in that" -> the whole point of this kind of channel, and my involvement in the hobby. Thanks for the video, James!

@kylelaw7210 10 месяцев назад

Making your machines better makes you a better machinist.

@meocats 10 месяцев назад

the fun in buying a better lathe comes with all the new projects you'll be able to do. Your new lathe might have a copy atachment, automatic feed on x and y axis, a bigger spindle bore, and a longer bed. You'll be able to do poligon turning on your new lathe through a CV axis mounted to the feed screw on the tailstock end. A real engine lathe will do things you've only dreamt of. For example, i have a Sn321 lathe. There's a guy on youtube called B B machine shop (germany) with this lathe, you can find it by searching sn321 and going down the list a bit. You can see that this lathe has many more features than a chinese clone lathe. It has clutch on the feed screw for automatic disengagement if the feed force gets too high ----- helps when crashing in a shoulder. It has a 4th feed rod with cams, it has cables going to the compound for automatic disengangement. i'm not even sure what this is for to be honest, my lathe came with those cables cut and they look like electrical. Taper attachment. This thing is as semi-automatic as it gets before cnc. Might even have variable surface speed for facing. 3Kw Motor for a lathe that comes with 750mm between centers. Available in 1 and 1.5 meter centers but that's already like twice as big as g0602.

@markfletcher6511 10 месяцев назад

As always, I truly enjoy each and every episode that you produce. I was surprised that two things seemed to be missing in this video. The first was a lack making and cuts with the new clamp in place. The second was a lack of a before and after tool deflection clip. I dial indicator pointing down on the tool as it entered a cut with each of the two clamps would have been, and still could be, a great way of characterizing the improvement that the new clamp offers. Thus justifying the effort used to make with more than the pure joy of creating. Please do not take this as a criticism. I really liked going along on the ride with this build. Keep up the great choices of topics to produce.

@JBMetalShop 10 месяцев назад

I have that same lathe and your channel has been so helpful in getting the most value out of a lathe i cant afford to replace.

@robertcrossley9803 10 месяцев назад

Great video, camera work spot on really enjoyed watching the machining. Thanks for taking the time to produce

@homemadetools 10 месяцев назад

Nice work yet again. We shared this video on our homemade tools forum this week 😎

@MrTIGERH1752 10 месяцев назад

I made something similar for my little JET lathe and my EMCO. And it works very well. You might want to try AHCS in place of your studs, lower profile, and handy hex head to match your other lathe, fastners. I literally have dozens of soft copper and aluminum bits for protecting machined surfaces, but usually end up using pennies from my pocket, (usually all I have in coinage), because I can't find them in the clutter!!! Love your presentations. Hope to see you again at the BAR Z Bash. Tim

@seldendaniel8819 10 месяцев назад

AHCS in place of studs would make it possible to have the top of the clamp flat, thus stronger, and simpler to make.

@AlmostMachining 10 месяцев назад

Very nice new mount! thank you!

@AlsanPine 10 месяцев назад

i've done the solid riser very similar to yours. i am definitely going to do this update as well. i have seen several variation of this on the different channels but i like this the best as you have maximized the beefiness here. love the channel 🙂

@bking0740 8 месяцев назад

The compound slide was the first thing to go on mine. I like your upgrade and will likely do one myself.

@MrRctintin 10 месяцев назад

Another great project, well done, love your work

@2oqp577 10 месяцев назад

I can see the day when I am going to need to do something similar. Thanks for the hints I will need.

@russll02 4 месяца назад

"where's the fun in that" I do agree that is one of the reasons i have been building my own equipment, i have my MILL at stage 1, 3 stages designed and currently working on the designs to build my lathe with of course the ELS that you designed. Love you channel. Thanks.

@kylemattfield4431 10 месяцев назад

Random thought and I expect you might be the guy to do it. If you can do active sound canceling with speakers, you should be able to do active chatter canceling for a cutting bit. Vibrameter on one end of the bit, driver on the other.

@umahunter 10 месяцев назад

Did the exact same a while ago made a huge difference I used to put jacks to stop the tip lol oddly enough the mounting stud for the original setup sheared the very last time I used it

@melgross 10 месяцев назад

A weak spot on small lathes is the compound gib. Two problems with it. First is the type of gib. A straight slab using three screws for adjustment. Three screws isn’t enough, it should be four, or more. That type of gib isn’t rigid. The reason is that the three screws project out of the top dovetail to engage the gib. That means that the gib doesn’t engage the dovetail on both sides just the bottom dovetail. This allows the gib to wiggle under high loads. Secondly, when the compound is at an extreme rear position, it loses one screw, effectively, allowing the gib to move sideways a bit. The tapered gibs are much better and were designed long ago to overcome this problem as the gib is always 100% engaged with both sides of the dovetail giving much more rigidity. The second problem is for some reason that I’ve never understood, the compound gib is in the wrong side of the compound. My larger lathes all have the gib on the trailing side. The way this is, the pressure from the load is against that loosy goosey gib with the problems I mentioned, rather than against the solid side of the dovetail. This pressure tends to loosen the compound under pressure rather to tighten it which would be the case if the gib were designed and constructed properly. I’ve spoken to a few others with this problem. I’ve also looked at a fair number of lathes and almost all use the tapered gib on the right side of the compound rather than the left side. It’s something to look into, but correcting it means a whole lot of work which might not be worthwhile. But could allow the compound to be rigid enough to be used for most, or all work.

@TangentJim 10 месяцев назад

James -- Excellent Video -- Excellent Engineering -- Excellent Results . -- Jim

@SoBoring136 10 месяцев назад

Simple, but really well made. Thank you

@J_CtheEngineer 10 месяцев назад

My 0754 is currently disassembled for the solid toolpost riser mod. Looks like I’ll have to add this to the list.

@624Dudley 10 месяцев назад

Another fun improvement romp. 👍

@ralphpavero7760 10 месяцев назад

I want to thank you for designing that compound clamp I made one for my grizzly go602 it went from 5 thousand to all most zero thank you again

@Fredpotts 10 месяцев назад

Another problem with these Chinese compounds is that the two parts of the dovetail impinge in the middle where there is not supposed to be any contact. This makes the upper part of the compound not contact on the intended mating surfaces. Thus it rocks under load. There are several YT videos about how to fix that problem.

@neillickfold 10 месяцев назад

I am a great fan of 2 jaw keys for use with the 4 jaw chuck. They don't have to be as big as the main key, as you use them in tandem to reduce 4 jaw indicating time while still keeping some load to hold the part. Great idea for the better clamp for the top slide.

@joell439 10 месяцев назад

Exactly James - that was fun

@robertoviana514 10 месяцев назад

And thanks for providing the detail for my next project.

@mikeinfinity2572 10 месяцев назад

I hope you read this sir. I took a snap shot of the design as you said and I made it. You know what? Great job sir that reduced the chatter problem so much very happy great job it works

@somebodyelse6673 10 месяцев назад

It'll do for now, but I'm looking forward to the full taper attachment :)

@akschu1 10 месяцев назад

I want a newer/nicer lathe than my G0602 but then James keeps cranking out new videos with amazing add-ons.

@mikevdwerf 10 месяцев назад

As always great !

@shadwellsong 3 месяца назад

Yay! This is great thank you. Boy I’d love to see a copper handle on that thing.

@ImolaS3 10 месяцев назад

Nice fix!

@de-bodgery 10 месяцев назад

Agreed! Where is the fun in that!? You have convinced me! I need to make a better clamp for my compound too. It's got way too much flex in it.

@ElectraFlarefire 10 месяцев назад

Surprised you didn't put another stepper on the lathe, this time on the back of the cross-slide and add some software to the ELS to do tapers. :)

@PositronicDiscombobulator 10 месяцев назад

This is great. I have to chuckle as I am sitting in my workshop with a piece of stock in my lathe that is going to fix my compound. I went for a slightly different design as a don't have a mill. It's the The “Donut" By John Pitkin. I've actually had it in my lathe half finished for a month now, embarrassingly, just got a couple of things to do first.

@PositronicDiscombobulator 10 месяцев назад

Just finished the video. Very inspiring and thanks for the video. I always learn something new with this channel.

@mattw7949 10 месяцев назад

Great, informative video. Clever using the chamfer bit in the boring head.

@jamesriordan3494 10 месяцев назад

Half the joy of owning Grizzly products is the improvement of the baseline tool - my 4x6 horizontal bandsaw has, for example, embellishments such as flood coolant / lubrication, hydraulics, multiple table extensions and a proper hand wheel for the vise. Similarly, my drill press has been tuned up with an improved table lock / rigidity set up and quill depth DRO. The base value of most Grizzly products is superb; with design improvements such as the ones you have made, they really come into their own from a value perspective IMO.

@zincfive 10 месяцев назад

Good video, very interesting, thanks!

@osgeld 10 месяцев назад

even if you bought a "better" lathe, its going to have a different set of "issues"

@mduvigneaud 10 месяцев назад

"Why not just buy ..." James, I completely agree with "what's the fun in that?!" A while back I was learning how to make a keyboard and someone suggested I just buy one. I've also had people suggest I just buy a newer version of Photoshop because I was writing my own image processing code to do something specific. Why *not* make your own tools if you know how to do so and have fun learning along the way?

@TERRYB0688 10 месяцев назад

Nice job sir 👍

@6NBERLS 6 месяцев назад

Most excellent.

@bhoiiii 10 месяцев назад

Your thumbnails are so This Old Tony.

@bhoiiii 10 месяцев назад

Has he not picked up the phone? Cheers friend.

@custos3249 10 месяцев назад

Interesting. There really is a kink for everything.

@dereklloyd527 10 месяцев назад

Right??? I came across the thumbnail and was immediately upset that I didn't recieve a new video notification from Tony.

@joemgj 3 месяца назад

This is comedy gold! 😂 Fantastic!

@alewis8765 10 месяцев назад

Didn't know about the tariff on video cameras. Interesting. I'm curious why you cut the viewing window before boring on the lathe. I would think avoiding an interrupted cut justifies splitting your mill functions. Also, treat yourself to a Haimer gauge. Finding edges with a Haimer will be a breath of fresh air. Thanks for the idea for my next lathe improvement project.

@sblack48 10 месяцев назад

If you already have invested a lot of time tooling up your machine and you don’t want to start again with a new lathe one thing that would improve yours substantially is scraping. When I took the King scraping class 3 guys brought in their compounds and 1 cross slide from the their grizzlies (not picking on grizz, all imports have similar issues) and when they blued them up on the surface plate the contact was awful. A few hours of scraping and there was an incredible improvement. I think the Chinese factories just slap ‘em together and there is no effort to get any kind of quality of fit. Also some have warped castings because they aren’t seasoned or stress relieved. The bonus is that to scrape you have to buy a bunch of new cool tools!

@Clough42 10 месяцев назад

Yeah, I think the cross slide on mine would benefit greatly from this. Even grinding would improve it a lot.

@car9167 10 месяцев назад

I have exactly the same lathe as yours and same issues. The cross slide flexes as well quite a lot. I ended up making another cross slide out of cast iron twice as thick and of course I lost some of the diameter I can machine now. I had to remake the compound base as well and kept the original moving part of the compound

@jamesbrewer3020 10 месяцев назад

Another good one

@Chris-bg8mk 10 месяцев назад

Hey James, you could grind a trepanning tool for the boring head. Always quicker to do another operation in the mill while the part is still set up. (Unless you have to grind a tool…)! 😂. Nice project!

@ADBBuild 10 месяцев назад

You could have made the flange thicker if you used button head screws instead of nuts and washers. If you were worried about them coming loose, just use medium loctite.

@user-ww9uo5jz6n 8 месяцев назад

I was just about to suggest exactly this.

@AmateurRedneckWorkshop 10 месяцев назад

I am in the buy a better lathe group. You can't make a silk ear out of a sows purse. Wish I had done that myself. Thanks for the video keep on keeping on.

@chrisford9045 10 месяцев назад

You can get the best lathe that money can buy, and you will still want to make modifications, alterations, accessories, improvements etc

@jimforsyth2. 10 месяцев назад

Solid tool post and make a taper attachment

@ShedBuiltStuff 10 месяцев назад

Exactly. NO FUN in just buying your way out of a problem. 👍

@davidapp3730 10 месяцев назад

Great video. May try that on mg lathe..

@philipwolf3619 5 месяцев назад

AWESOME !

@matsbengtsson3756 10 месяцев назад

Good improvement. I agree, you need a better lathe.

@JohannSwart_JWS 10 месяцев назад

I'm no safety nanny, but your hand was ridiculously close to that running fly cutter at 6:56 when applying cutting lube. Made me pucker up :-)

@Clough42 10 месяцев назад

The video makes it look closer than it was.

@idontwantcorporateretaliat6301 7 месяцев назад

aww, I wanted to see this parting some steel stock

@billstoner5559 10 месяцев назад

Why on earth would you want to buy a “better” lathe when you can manufacture improvements to your own desires. 😁😁 Great video as usual. Thanks. Nice touch using a 3d model for proof of concept before committing time and material to the finished product.

@PeregrineBF 10 месяцев назад

IIRC you mentioned it when you made your solid tool post mount, but Robin Renzetti has a solid tool post mount on his Hardinge HLV-H (and did a video on it). Those are $50,000-$100,000 lathes, the only ones capable of holding equal or better tolerances are the Monarch 10EE. And it's *still* a noticeable improvement to take the compound off and put on a solid tool post mount! "Just get a better lathe" doesn't change the fact that every extra joint reduces rigidity. Of course you're not working with ±0.00005" tolerance bands like Robin seems to do regularly, so you might not notice the rigidity loss on a better lathe, but you're a bit of a perfectionist so you'd end up with the solid mount anyway.

@procyonia3654 10 месяцев назад

You can definitely feel the difference on a better lathe, I took the compounds off all my big lathes (20hp+) it's a weak point no matter how big and tough the lathe is.

@gerritvisser 10 месяцев назад

The original clamp also considerably warps the cross slide, making adjusting the gibs impossible. Having just a few thou of clearance will avoid most of that 'fun'. the best lathe is the one you already have in the shop, anything else is dreaming :-)

@lancer2204 10 месяцев назад

that, and the trashing of the t-slots when some gorilla hauls down hard on the nuts because they don't understand the limits of the machine

@sblack48 10 месяцев назад

He mentioned clearance and so do you but I don’t understand what clearance you are referring to.

@bambukouk 10 месяцев назад

Exactly what was happening on my (very similar/not Chinese) lathe. To clamp, the clamp needs clearance. If it has clearance it will distort cross slide as you tighten the clamp... Making clamp heavier/stronger solves little...

@gerritvisser 10 месяцев назад

@@sblack48 there is a small (or in case of original large) amount of clearance between the bottom of the bracket Clough42 just made and the cross slide. This is what provides the movement to clamp the graduated dial. There are better designs but more difficult to adapt to this lathe style.

@sblack48 10 месяцев назад

@@gerritvisser oh I get it - the clamp doesn’t actually touch the xslide. Gotcha thx

@ikkentonda 10 месяцев назад

Excellent content as always. I don’t own this lathe but I’d bet real money that two (possibly larger) bolts (or studs and nuts) in the middle on each side of the clamp would be effectively as rigid as the six you have. I’m even more confident that the two middle nuts aren’t accomplishing much with all six tightened. Do me a favor, and perform some tests with an indicator while gronking on the compound with two, three (two on the tailstock side), four, and six nuts tightened. Might save you some annoyance when using the compound.

@erik_dk842 10 месяцев назад

Diminishing returns.

@jhawker2895 10 месяцев назад

Buy a better lathe and Enjoy doing it .... Thanks for sharing ... Stay safe and well....

@tmurray1972 10 месяцев назад

I still need to do this mod to mine, just haven’t decided on a design yet. I’m thinking a better class of spindle bearings would be a great improvement as well.

@David-hm9ic 9 месяцев назад

@tmurray1972, I thought the same thing about my G9972z. Two things changed my mind. One, I took the compound off and cleaned all of the chips from underneath. Two, I got some better (name brand) inserts and started machining better quality metals. I'm using ISCAR DCMT070204/DCMT21.51 inserts with an IC907 coating now and can remove half a thou at will. I got them new in the factory sealed packages on Marketplace at a great price and they're amazing. Unlike most carbide, they give a great finish at lower rpm than most and do well when making shallow cuts, ideal for our smaller lathes.

@salvspitaleri7215 10 месяцев назад

Nice work, that's a worthwhile improvement. I have essentially the same lathe and the OEM compound locking arrangement is woeful in terms of rigidity. Will you be leaving the new clamp in the white or applying a surface treatment as a means of corrosion protection, such as bluing or nickel plating?

@amundsen575 10 месяцев назад

A little surface grind to help with clamping surfaces

@1crazypj 10 месяцев назад

You would have a LOT more rigid set up if the complete base of compound was sitting on a flat surface. Even with 6 screws holding things together it still relies on the diameter of the plate (72mm) The torque applied by cutting forces is further from center and QCTP adds to the leverage available trying to tilt tool-post. Making the mounting much thicker you could machine a taper into center pin and have an external screw (s) to pull things down (then rely on extra surface area to keep things straight) It seems to work pretty well on Myford lathes (I don't have one and have never used one but have seen what's going on underneath compound)

@Mudweizer 10 месяцев назад

Cool video, what lathe would you upgrade to from this one? (Love the last part of the video, hehe.)

@Clough42 10 месяцев назад

It's a big jump, but I'd enjoy a Hardinge HLV-H.

@Thelemorf 10 месяцев назад

Since I kind of never use my compound, maby I should make a solid block for my lathe. 😊

@SergeiPetrov 10 месяцев назад

A large contribution to the rigidity is made by scraping the contacting planes.

@SuperJaXXas 10 месяцев назад

Interesting, I didn't know about 'movie cameras'!

@David-hm9ic 9 месяцев назад

James, I started working on my clamp this evening. My 11x26 G9972z compound matches your G0602 on all critical dimensions, just in case anyone was wondering. The compound itself is a few thousandths wider but that's not significant. Like you, I started with 3/4" hot rolled mild steel. The question is, is there a mechanical reason like stability to remove the mill finish from both sides or is it for the sense of craftsmanship? Asking because I need to develop a better shield to protect myself from hot chips and haven't yet. I don't have a fly cutter so I use an R-8 Indexable End Mill with TPG32 inserts, 2" diameter. It slings blue hot chips in every direction. For anyone concerned about the movement of the clamp seen at around 19:40, the clamp itself is not a precision piece. The close fit is maintained by the stub coming out of the compound seen during the assembly at 19:00. Even though it requires a considerable number of operations, it's a great teaching project and hitting the dimensions dead on is not critical. I ended up taking my 3/4" raw material to .650" with a 3/4" end mill. The surface finish isn't as nice as James's but I was putting function before form. I didn't care for the finish so I tool 2 of the 3 inserts out of a 2" insert end mill and took off a few thousandths more to make it look better. After finishing the clamp and making a few pieces the difference is remarkable. The previous visible diving of the cutting tool is gone. Surface finish quality is better without any additional effort. It was 100% worth the time and effort to make the new clamp.

@draganovdenis1421 10 месяцев назад

More beefy doesn't mean better - the main issue of such clamps for compound slide is an unavoidable distortion of components - both the clamp and the cross slide. By making the clamp more beefy, You just shifted the weakness point from the old weak clamp towards the cross slide.

@Clough42 10 месяцев назад

Correct. If you gronk down on it, the cross slide distorts as much as you want. Ideally, the clamping system would bottom two flat surfaces against one another, avoiding this distortion.

@draganovdenis1421 10 месяцев назад

Exactly, something like S.Gotteswinter did on his old "uDreh"-lathe! @@Clough42

@MansonMachineWorks 10 месяцев назад

I can’t imagine using a lathe without the compound. It would feel like a giant handicap.

@Agouti 10 месяцев назад

I disagree that the original issue was because its a 2 bolt system - many high quality lathes (e.g. Monarch) only have 2 bolts. I'd like to see some tests on your new better clamp with and without the extra bolts to see if there is any measurable rigidity being added.

@dimsum5567 7 месяцев назад

Yea, it’s irrelevant, as the tool post is pushing down.

@kylelaw7210 10 месяцев назад

Id like to see some rigidity comparisons. Solid tool post is way better than the stock compound but how much better is it than the new compound?

@RoFFen10 10 месяцев назад

Whats the difference in diameter on the hole in your cross slide and the pin in your compund? i would have thought that was supposed to be a tighter fit to prevent tilting under tool load from your cutters. i liked this video. good job

@mapp0v0 10 месяцев назад

The clamp is almost exactly the same as one i made. Except mine is thicker , with lapped clearance between the clamp and base of compound.

@ngiovas 10 месяцев назад

Another great video! Can you remind us what the dimensions of your lathe are?

@azinfidel6461 10 месяцев назад

Now you have me eyeballing my compound.......

@jaycastello1171 10 месяцев назад

Belfanti machine works makes a kit almost identical to your design. It’s been out for a few years now. Been looking at getting one for my G0602

@Clough42 10 месяцев назад

Interesting. I wasn't aware of that. It's a fairly obvious design.

@KZ-yy9pm 10 месяцев назад

Would you recommend this model in its stock form? Obviously the mods are great just wondering on the stock performance.

@jimihendrix5576 9 месяцев назад

@Clough42 Could you tell us where you bought the studs or post a link please? Thank you for sharing and please congratulate the boss lady for us on her fitness progress.

@rupunzel6299 10 месяцев назад

Band-Aid to the real problem, owned/used a G4002 (shorter bed G4003) since 2007, root of the problem this lathe is simply not that rigid/stable due to the design/weight/size of the machine. It does ok long as the cutting loads are not excessive. This lathe is capable of holding 0.0005" tolerances if tooled, used properly.. What it will not do is large cuts in hard materials. Large cuts without pouring coolant will simply heat up the part causing off tolerance/dimension parts. It is a reasonable lathe for it's size/cost/weight.. It will never be a much more substantial industrial sized lathe.. Part of machinist excellence is knowing the limits of the machine and working to the best of the machine's abilities.. The other greatly important factor, apply the very best carbide inserts (like 432CNMG) of the largest size for the part to be made in the largest holders that can fit the tool post (5/8" or 16mm square) when possible on the largest tool post that fits (Aloris BXA or Multi-fix A), good high quality chuck for work holding stability..

@Clough42 10 месяцев назад

The challenge with this particular lathe is the center height over the compound. A 3/8" tool is the largest you can use in a standard AXA toolholder. A 12mm/1/2" tool will fit in the holder, but you can't get it low enough to be on center. A BXA with 16mm tools would also be unusuable. You can get 12mm tools low enough to use in a Mutifix A toolholder, however, so that's what I run in that setup.

@rupunzel6299 10 месяцев назад

Not true, have an Aloris BXA on the G4002 since its purchase back in 2007. Works good, better tooling options and no issues with using 5/8" or 16mm square insert tool holders. BXA with the larger square tools simply work better in every way.. BXA also allows using boring bars up to 1" diameter and 5C collets.. There is simply no rational reason to not use the largest QC tool post on this lathe. Similar applies to the Multifix "A" @@Clough42

@Clough42 10 месяцев назад

@@rupunzel6299 This is a G0602.

@mxlje 10 месяцев назад

What filament did you use for the 3d printed bracket? It’s a cool color!

@lolzlarkin3059 10 месяцев назад

I've been thinking of this instead of a solid toolpost. And even tried looking for a compound off a big boy lathe to lash up onto mine. Interested to see how you find it after some use.

@Clough42 10 месяцев назад

So far, it's a massive improvement. The clamp can distort the cross slide, so you have to be careful, but it's really good.

@lukerickert5203 10 месяцев назад

A two axis ELS would seem like the obvious way to solve this problem. They work really well and are much easier and cut straighter than any compound slide.

@Clough42 10 месяцев назад

Maybe, but only when traveling in a direction that feeds against the workpiece so the cross slide screw is compressed in the correct direction.

@lukerickert5203 10 месяцев назад

@@Clough42 I did run ball screws but even with trapezoidal screws backlash is easily managed. A properly designed lathe doesn't hurt but I could make a POS emco cut just fine. (With a solid tool post)