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hi i realativly new to cnc and have a 3018, but decided i want better very quickly, and i came across this on amazon.
http://https://www.amazon.co.uk/gp/p...?ie=UTF8&psc=1
my question is it possible its any good at that price never seen a exspensive one so have no idea. have attached a few pictures let us know what your thoughts are please.
That link doesn't work for me.
Me neither.
https://www.amazon.co.uk/dp/B07T55PD...ing=UTF8&psc=1
try this but odd works for me
or this one thats sold out another exactly the same
https://www.amazon.co.uk/dp/B07T55PD...ing=UTF8&psc=1
try this but odd works for me
or this one thats sold out another exactly the same
Well it's definitely a ball screw/ball nut which should be better than a leadscrew/trapezoidal nut. However it does seem a bit cheap, I bought some of roughly similar dimensions from BST (known good vendor on here) a year or 2 back and they were a lot more than that. You might get lucky or you might need to buy 5 to get one good one. In the end if you're trying to make an accurate, quality machine you need decent parts, no way round that.
Some pics of your machine would be good. The one you linked to seems to be 1000mm longQuote:
Originally Posted by Dumpling
Hello, Found a similar add on Amazon, with availability (typed in SFU1605)- do we think it's just for the nut- seems far to good to be true?
They are a fiver when they are out of stock, but £55 when they are back in stock (probably:suspicion:).
I really hate these posts that advertise something for a stupidly small price, but then pile on the postage to bring it up to a norml price. It means you can only claim the goods amount if there is a problem.
Another thing that T's me off is the eBay trick of advertising (for example) cutting mats in all sizes A1 to A5, but everything but A4 is out of stock.
Yet another irritation is eBay postings from (say) 99p for something worth much more and finding the actual article advertised is really expensive and the 99p is for a spare circlip type of thing.
Maybe I am just getting old and grumpy....
Rob
This looks similar, same price. Sounds a bit dodgy to me "£4.89 with free delivery". Really?
https://www.amazon.co.uk/dp/B07Z9HVS...xpY2s9dHJ1ZQ==
Haha it says "max speed 16000rpm". Good luck with that!
I think this is the killer
Note:
Please allow 1-5cm error due to manual measurement. Thanks for your understanding.
Chances are they'll be factory rejects that somebody has bought at scrap value, and assembled to something 'useable'.
They'll likely work, but expect rubbish accuracy, and lots of backlash. I certainly wouldn't buy them with the expectation of using them for anything high precision.
it came it cost 5 pound and well works fine when i did a mock up, better than the 13 pound t8 lead screw they sell. got 4 now. cant get a burger king meal for 5 pound lol. if it tunrs on me. make a fancy house decoration with it like a floor lamp lolAttachment 29832
came it cost 5 pound and well works fine when i did a mock up, better than the 13 pound t8 lead screw they sell. got 4 now. cant get a burger king meal for 5 pound lol. if it tunrs on me. make a fancy house decoration with it like a floor lamp lolAttachment 29833
Yes- I received one looked it over and promptly bought another. I don't think I could buy the metal for the money never mind have it delivered.(Note only bubble wrapped so at risk of bending in transit ) Very pleased/happy at least for now-Pete .P.S. Any other CNC 'ers in or around Aylesbury?
still odd why or how they would do it so cheap, where is the profit margin in it, gangsters maybe laundering money on amazon quick time. dont care anyway to be fair