Not what you think... Fixing the Mini Lathe Saddle - Part 5
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- Опубликовано: 28 авг 2024
- How to use a woodworking plane to help flatten the bed of a metal lathe - yes it can be done...
Continuing to tune up the Chinese Mini Lathe, next job to look at is the lathe saddle.
I have had a lot of problems with surface finish and the tool cutting on the outfeed. In this series we're working through the various problems with the lathe saddle as it came out of the factory and working out how to improve its accuracy and rigidity.
In part 1 we looked at the problem, take some measurements and start to hand scrape the bearing surfaces of the saddle in order to start to bring it into truth.
In part 2 we identified a problem with the alignment of the saddle bed ways which we need to sort out before we can move onto the actual gib strips.
In part 3 we refined the saddle gibs themselves and started to re-assemble the lathe. Optimism for a swift conclusion of the problem was high, yet premature.
Here in part 4 we addressed a bend in the lathe bed and are once more taking to the hand scraper to fix the problems that came out of the factory.
And in Part 5 I'm using a Stanley No.5 Jackplane to help me finish flattening the lathe bed.
The fix applies to the following lathe models: CJ0618, Crenex 7"x14", Clarke CL300M, Warco Mini lathe, Sieg C2 and many other brands which are based off the Chinese mini lathe design. However the techniques could be applied to other makes, models and sizes of lathe and aren't limited to this particular model.
See part #1 here - • Fixing the Mini Lathe ...
See part #2 here - • Fixing the Mini Lathe ...
See part #3 here - • Fixing the Mini Lathe ...
See part #4 here - • Fixing the Mini Lathe ...
Richard, thank you so much for doing this series. I've watched all 5 parts and have found this invaluable in trying to set up my own Chinese mini lathe.
Hi Mike, really glad you enjoyed it and thanks for watching 👍 More to follow...
Bruce here:I have learned a great deal watching the videos you did a wonderful job in my opinion.Thanks
Thanks Bruce, glad you enjoyed it 👍
I think one of my favorite aspects of this project has been how honest and relatable it is: you're a regular guy trying to have some fun in the shop and a problem landed in your lap that you didn't know how to solve ... and you let everyone come along while you stepped through it. It's easy to imagine myself in your shoes; I don't know if I would have had the confidence, perseverance, or ideas to tackle everything you did. I like that you mention your concerns that you had ruined something; who hasn't felt like that when they got into something much more involved than they first realized? Thanks for sharing your experiences, this was a great series.
For what it's worth, the cuts were night and day different, and I am certainly looking forward to more of your projects!
Cheers!
Thanks Pingwax - much appreciated 👍
All five parts were fascinating; I binged! Your video and linguistic skills are sans pareil and assured my subscription... very well done!
Thank you - I'm glad you enjoyed the videos 👍
😢 I'm going to miss hearing this saga. It's been so interesting. 👍
Thanks Greg, the good news is there are still plenty of faults with the mini lathe, I predict more epic sagas 😂 👍
I saw all 5 parts your hard work , knowledge and patience just wonderful
Thank you Sir!
I just watched all 5 clips of this little journey of yours. Very enlightening and enjoyable watching a 'master home machinist' at work. Your explanations and general chat during the practical application of repair instill confidence for someone to give this a shot. Nothing ventured nothing gained, right? Thanks for the insight.
Thanks for watching goosey - glad you found it interesting! Like I said, the beauty of these Chinese lathes is they come pre-messed up from the factory - absolutely nothing to lose lol 👍
I have to say Richard, I have watched all your streams from the start and enjoyed every one of them, using a pre scraped plane is simply "GENIOUS" well done mate
Thanks mate, I'm so glad you enjoyed it 👍 Have to think outside the box sometimes lol
Nice to see you bring that lathe to a workable State. Watching from Danmark
Thanks Jan, greetings from the UK 👍
this popped up in my suggested after I watched your scraping vid an and I exclaimed before clicking !we have a straight edge at home ! Lmfaoo so glad that was the case.
Nice one 👍
loving this series!
Geez- i was thinking of getting one of these little chicom lathes, but after watching you enjoy making this Little guy usable- i can’t bring myself to go to all that work. Guess i will get something not made in china.. good video- you have a lot of enthusiasm i must say.
@@Jimmyturner1942 you would probably be ok if you got one from a named brand, this one was from one of those pretend brands on eBay and made from reject parts. But if you have the money to get one from a Western maker that's definitely the route to happiness!
Very satisfying to see the problem resolved. Really enjoyed the series.
Thanks Thomas, we got there in the end 👍
Hey Richard , well done mate Lovely job and great to see the lathe actually working as it should, Great stuff. Kind Regards Mike
great job. Nice to see you back in the shop again.
Cheers Neil, it's great to be back 👍
Yes looks like a much cleaner cut !!!
Yes, much more consistent. Happy to have improved on that!
Fantastic work Richard, really enjoy it.
Thanks Matthew, glad you enjoyed it 👍
Good to see you have made a workable machine out of a kit of parts, i wonder how much extra it would have cost if it had been done right when it was first made.
You might like to try your cut test with a sharp HSS tòol, i find a really sharp tool doing a light cut wont leave a spiral when returned.
For my personal use i hate the sound of rattling handles, for me it would my first job to bush them, but then I'm an unqualified perfectionist.😉
Thanks Chris. I reckon you're spot on with HSS, I have a 300mm length or 8mm square HSS that I keep meaning to grind into tools. Carbide inserts are convenient but really designed for high speed and heavy cuts, the opposite of what a mini lathe can do. Hadn't thought about the handle noise before, it'll probably bug me now lol 😂
@@radboogie might I recommend "gadget builder"'s tangential toolholder, Google his site and scroll down the list, it is a HSS tool that is as convenient as insert tooling but with the advantage of being cheap and sharp. Dead easy to make and we'll worth the minor effort and sized for the mini lathe.
Mod the handles, you can thank me afterwards.😉
Instead of doubling the nuts you might want to look into a locking washer called Nord Lock. It’s a two part locking washer with serrated faces and works quite well in an application like yours. They only come in packages of three or four but that’s all you need anyway. They are cheap and come in lots of different sizes from 6-32 all the way to something like an inch and a half.
I'd never heard of Nord Lock - thanks for sharing 👍
Months later... I wondered if there might be enough "dip" at the back/rear way, to measure with a feeler gauge, to see if you had massive, or minimal, amounts to remove from the "high spots"... Also, wondering about getting front to back 'slope', making the center of the tailstock off-centre vs. the headstock? I used a precision level to get an idea of how much "roller coaster" I had on the lathe bed, as a first pass
A precision level would have been really useful throughout the process, am keeping an eye out for one. My main test was my Rabone straight edge which gave me a rough idea of the shape of the bed. I still need to realign the tailstock as that will be out of whack now. Cheers 👍
any problems with condensation/ rust on your lathe during the winter?
Not so far, I keep it quite well oiled though.
I was wondering before why in the world you were hand scraping a Stanley plane - I thought you were a nutcase woodworker! I think that was the first video of yours youtube randomly showed me
I must confess the nutcase woodworker moment came first and the idea to use it as a straight edge came second 😂
Alright mate, let’s make something now.
... after all said and done, you get what you pay for ... poor quality is cheap, conversely, good quality is expensive but guaranteed ...
So true. And I paid £375 for this lathe new and got just £375 worth of lathe 😂
@@radboogie ... I'm happy for you, mate, truly I am ... your needs are very modest, it seems ...
@@oldskeptic1513 yes mate, at the time I bought it I had a specific job to do and limited funds. To be honest I like a challenge so doing up this dog of a machine has been quite fun 👍