I'm using a small diamond disc on my Dremel tool for cutting chip breakers, and touching up faces.

@Lukers_tinkering

2 ай бұрын

That's a great tip... pinning this tip to the top!

Another useful video from the"Luker"workshop thanks (Graham)

@Lukers_tinkering

Ай бұрын

Thanks Graham, all going to training material for a tool supply store...

7:30 isoprop alcohol. Try spraying isoprop alcohol when you machine aluminium , it works wonderfully ! Try it , it's like magic

Resally good viv . Thanks

Thank You Sir, very helpful

That first trigonal insert you describe as 'a left hand tool' is actually classed as a right hand cutting tip.

I have carbide tipped lathe tools, and they work very well on my small lathe. The power from the motor is more than sufficient, but the belts will slip if the part jams and stops the chuck. The boring bar is cool, but if you had machined the end better, you could have had a screw holding the bit. I have a large triangle carbide brazed to a rod with a handle, I use for a gasket scraper. Due to the angle and only hand pressure, it does not damage the metal surface when I use it, I have used it on cast iron and aluminum with no scratching. I also bought carbide rod for making special bits, and tools.

@Lukers_tinkering

2 ай бұрын

The power requirements for a home lathe becomes an issue when the tooling creates a 'wedge' cut, this is specific to the grooving tool discussed in the video. Other than that there shouldn't be any issues. I have a few home made insert holders, but the example was for a used insert, and something that can be made in less than 5min with only an angle grinder and blow-torch. I tend not to sharpen tip/insert tools in holders. Was the rod HSS or carbide? I have made the odd tool from broken carbide milling cutters but thats heavy going. I do the rough shaping using a tile cutter disk and finish off with the grinding wheel...Thanks for the comment!

@jeffreyyoung4104

2 ай бұрын

@@Lukers_tinkering The rod was carbon steel, and is pretty stiff, as it resists bending very well, I believe the rod is 3/16 inch diameter, and it is brazed to the corner of a 1 inch per side triangle insert. My lathe does very well, except when using a diamond/wedge insert and I am trying to plunge cut the material, otherwise there are no problems, unless the work loosens in the chuck and wedges while I am trying to make a cut. It does well for a 1940 era lathe!

I found those hi-rake inserts chip very easily as theres NO nose radius... and the biggest sin is to stop the lathe spindle rotation mid-cut, a definite insert killer... Running smaller lathes with limited HP, I prefer the versatility of hss and keep the carbide for tougher /harder materials... 😎👍☘️🍺

What you're calling a "left hand" tool at 6 minutes in, is actually a "right hand" tool. It's counterintuitive to how it looks, but I think it's because it cuts the "right hand" face of the job ? Not meant as a criticism, but I wouldn't want any beginners watching this to order up the wrong type of tool.

@Lukers_tinkering

2 ай бұрын

Yep, you guys are right, I always mix it up... checked my machinery handbook 12ed and it says there is no formal definition but generally accepted that looking from the point; if the cutting edge is on the right, it's a right-hand tool. Thanks for the correction.

Is it not a right hand tip? I am learning.

Hi info; buy a cubicbornitrid or diamond disk to grind carbid. They are made for the application. Siliciumgrinding disk arnt that hard.

@Lukers_tinkering

2 ай бұрын

It's expensive, but if you can afford it, yes, definitely. Old school green grinding wheels are much cheaper and were popular before diamond become more common.

@fearlyenrage

2 ай бұрын

@@Lukers_tinkering lol 50$ and you get good quality. And im a cheapskate... They can cost 5x 50$ or more but i get them on ebay, oldstock mostly. They hold up good so what?

@jeffreyyoung4104

2 ай бұрын

I bought a diamond disc for carbide, and a small grinder to run it.

I am enjoying your videos so far but on this topic I will have to chip in here and say I completely disagree with most of what you've explained here. To start; while the Adendorff lathe is not half bad and with some tinkering can be made to provide a reasonable result, the insert tool kit is exceptionally bad and should be avoided at all cost! There are various reasons why I say this but what I must state right from the start is that while you were comparing cost to that of brand name commercial tool suppliers, If you've used any of these high end tools you will understand exactly how bad the Adendorff(Chinese) set in fact is. Before talking about quality and cost I would like to point out one of the reasons why the Adendorff kit is particularly unsuited for the small hobby lathe. The insert style used in these tools comes with a negative(neutral) rake. The benefits of these style of inserts is the fact that you have double the amount of cutting edges made possible by flipping the insert over(like you've illustrated in the video), but most importantly, the negative rake provides great support for the cutting edge allowing very heavy cuts to be made. In a machine shop environment especially when using Abom size lathes, this is a major advantage and can save a lot of time removing large amounts of material. The problem with this however is that it requires significant amounts of torque and power, something hobby machines does not have much off. For this reason positive rake tool inserts makes far more sense for the owner of smaller machines. One of the major advantages of positive rake inserts is the fact that they provide much finer finishes. So while you might save on having more cutting edges that can be used on negative rake inserts, you will need tooling for rough cutting and then tooling for finishing which is fine in the machine shop environment where costs are much easier to justify. The hobby lathe owner would prefer one tool which can be used for both roughing and fine finishes even if it comes with the price of having to do a couple of more passes to remove the same amount of material. For this a positive rake tool and insert would be the best choice and unfortunately they are harder to find in kit forms or in the low end Chinese brands. Now for comparing cost; yes you can buy the entire Adendorff kit for the price of a single Sandvic or similar high end insert style tool but you really only need 2 tools.(This excluding a tool for parting and boring bars.) Left hand tools almost never gets used and even in the odd case of needing one you will find that fitting a 4 jaw chuck and spending the bit of extra time to center your work piece after flipping it in the chuck you can still achieve the same. My point is, never waste money on left hand tools. The same goes for the centrally mounted insert tools. I use 2 tools and they are my go to tools for 95% of all my machining. For the rest I have a boring bar and parting tool. I most often use these 2 tools in combination; the first is an SSDCR 2020K 09 from Sandvic www.sandvik.coromant.com/en-us/product-details?c=SSDCR%202020K%2009&m=5751189 With this tool I have 4 cutting edges, it works great for facing and chamfering on outside edges, left and right and can also cut longitudinally if you do not need to cut to a 90deg shoulder. The next tool I use a lot is a SDJCR with DCMT inserts which is okay when it comes to facing but brilliant at longitudinal cutting and cutting into a sharp 90 deg shoulders. It also provides very fine finishes. (and in spite of it being a positive rake tool I have taken 6mm cuts with these on my 3HP Colchester Student.) Another one of the benefits of using branded cutting tools is that most suppliers of branded tools will supply single inserts while many of the cheap brands force you to buy packs of 10 or if you are lucky, packs of 5. (It is also my experience that inserts from branded and non branded tools are not very different in price.) On this note I must also mention that the Adendorff insert tools only take inserts supplied by Adendorff while all other brands use the same style and shape inserts which are compatible with each other. There are however also cheaper alternatives for the branded names like Sandvic, Iscar, Kennametal etc. which will also take the same inserts. Just a mention on the quality of these inserts; I can drive the Sandvic insert much harder than the Adendorff ones before destroying them which is ironic when one consider what I have discussed earlier in terms of the advantages of negative inserts over positive inserts. I might be stepping on some toes here but I do believe I am providing sound advice which will make a considerable difference in the quality of your machining.

@Lukers_tinkering

Ай бұрын

I have no problem with different views, in fact I encourage it! Expensive or high end tooling is always nice in a workshop but I have found I needed to be innovative to solve problems rather than throwing money at a solution. Most of my video's will reflect this, i.e. even the inexpensive tips and holders can machine perfectly for the home workshop at a fraction of the cost. I can't comment on the life of the tips as in the last 10 years I've never thrown one away, they tend to be reused again and again. My advice is always, if it works for you then keep doing what you doing!

@altuspienaar7679

Ай бұрын

@@Lukers_tinkering spending more or less money might be considered a different viewpoint yes, but using the wrong type of tools for the wrong application is not a very rational approach. Cheap here is very relative; I spend just less than R2000 for the Sandvic SSDCR with 20mm shank and the Korean made SDJCR, also with 20mm shank. Inserts must have cost me less than R500 as I only bought 3 or 4 for each tool because I could buy them loose and they were around R85 each. Compare that to the Adendorff 20mm kit going for R2000 and you can see I spend only R500 more but are getting loads more bang for my buck👍, not only in quality, but also because the positive rake tooling provides less load on my lathe and leaves a much better finish. In contrast the Adendorff kit provides a whole pile of different cutting tools....which no one hardly ever use🙄.