My new Harrison lathe

[God mode restorations]

Its 11 inches across. It's a hard drop of iron for sure. It's a lot better than it was definitely.

Well it won't wobble that's for sure. What is it 7" diameter? Usually you'd like to see a bit more contact especially on a 'static' part but it'll do the job just fine and it's a lot better than the usual 'touches in 3 places' you normally get. Looks like hard iron I bet that wasn't much fun to scrape.

 

[God mode restorations]

And now to do it all again.

 

[RobCox]

Your bluing compound shows up a lot better than the Stuarts Micrometer blue that I've been using recently. Do you mind me asking what magic compound is it that you use to get such a visible result?

Rob

 

[God mode restorations]

Your bluing compound shows up a lot better than the Stuarts Micrometer blue that I've been using recently. Do you mind me asking what magic compound is it that you use to get such a visible result?

Rob

I use dykem blue. It's a lot easier to use than the Stuart's blue. Its expensive but I buy it from rgd tools. It's good stuff.

 

[Pete.]

Your bluing compound shows up a lot better than the Stuarts Micrometer blue that I've been using recently. Do you mind me asking what magic compound is it that you use to get such a visible result?

Rob

Get some diamant tuschierpaste

 

[Shox Dr]

Lets see your tools. Scrappers that is

 

[God mode restorations]

Lets see your tools. Scrappers that is

Some of my tooling.

 

[God mode restorations]

Finally got the flats done on the cross slide. What a nightmare job.

 

[Shox Dr]

That must take some time, using hand scrapers?

 

[God mode restorations]

That must take some time, using hand scrapers?

A couple of days solid..

 

[Pete.]

That must take some time, using hand scrapers?

Took a lot longer than normal because that iron is HARD. Blunts the scraper in no time.

 

[God mode restorations]

Took a lot longer than normal because that iron is HARD. Blunts the scraper in no time.

Literally every pass. There was a good amount of wear as well. I got it 95 percent good.

 

[Shox Dr]

Took a lot longer than normal because that iron is HARD. Blunts the scraper in no time.

And if it had been not as hard?

 

[Pete.]

And if it had been not as hard?

If it was a nice fine grained meehanite probably a good few hours. A lot less with a Biax of course

Plus you have to remember that Spencer is still on his learning curve (as am I except I'm further along).

 

[God mode restorations]

If it was a nice fine grained meehanite probably a good few hours. A lot less with a Biax of course

Plus you have to remember that Spencer is still on his learning curve (as am I except I'm further along).

Totally agree pete. I still a beginner and your a long way ahead of me. I still make mistakes and I can see them in my work. But it's hard work but I do enjoy doing it.

 

[Bill Edwards]

Obviously you're doing a good job, well done.
I also admire your dedication! Not just the time but the sheer amount of work/effort/days upon days of scraping away.

I reckon you will have a lovely lathe when it's all done - I realise it's been built to remove big amounts of material rather than be accurate, but with the way you're finishing it I expect the result will be a very, very accurate machine in the end?

 

[Bill Edwards]

Just a question as I'm not knowledgeable on scraping, but when a part is badly worn and going to require a huge amount of scraping is there any reason why you can't use a mill to remove most of the required material, or a surface grinder, then come in with a scraper for the finishing bit when there's not that much metal that needs removing?

 

[Pete.]

Just a question as I'm not knowledgeable on scraping, but when a part is badly worn and going to require a huge amount of scraping is there any reason why you can't use a mill to remove most of the required material, or a surface grinder, then come in with a scraper for the finishing bit when there's not that much metal that needs removing?

Absolutely. If you have more than a couple of thou to remove and you can fit it onto a mill/lathe/grinder/planer then that's what you should do - after carefully evaluating the wear and deciding where to machine. You want your scraping to be minimal, if you have the choice. It's hard to mill off as little as a thou, but it's hard work scraping that much.

 

[ronan]

You can get electric powered scrapers, but they are very expensive and obviously not worthwhile if you are only scraping one machine.

 

[God mode restorations]

Obviously you're doing a good job, well done.
I also admire your dedication! Not just the time but the sheer amount of work/effort/days upon days of scraping away.

I reckon you will have a lovely lathe when it's all done - I realise it's been built to remove big amounts of material rather than be accurate, but with the way you're finishing it I expect the result will be a very, very accurate machine in the end?

Thank bill. I am hoping once finished the machine should run and perform nice and should be a pleasure to operate.