Reverse lathe rotation, turn cutoff tool upside down. This will reduce chatter by reducing springing. Part of problem is lightweight bolt holding down the tool block. Also, any slack in the cross slide gibs and compound gibs will increase chatter by allowing oscillation.
you are doing good man . i got myself a 8x16 lathe about a year ago now and everything i now know i sussed it through trile and error , chek out a old american bloke called tubla cane on youtube you will learn lots from that man he is like a machine tool jedi keep up the work man.
I would like to make some spiral gears using this lathe and best way to upgrade motor for higher torque, and digital pitch relaying on chuck rotation angle.
Cut some Aluminium cans up in too lengths the same width of your tools then pack up your tool, this is great for shim stock and for adjusting tool hight in a fixed tool post
I think about stepper motor or servo motor feed using Arduino and LCD screen. I will implement encoder on chuck shaft and program for pitch. If there is some open source available and anyone guide me I will appreciate.
Hi. Thanks for the video. I just bought the same model, not from EBAY though. I got mine from a company called Amadeal. I bought it to fit my ancient EW Stringer lathe ( www.lathes.co.uk/ew/). The unit fitted my lathe perfectly. However, when I looked at the tool holders, I found that the bottom ledge of each tool holder ( where the bottom of the cutting tool will rest) was not parallel with the lathe ways. It sloped downwards by about 3 degrees. Probably not a big problem for most cutting tools, but a potential disaster for a parting tool! Not having a milling machine, I was struggling for a solution. What I did, was to mount the tool post onto my lathe, and used a 6mm milling cutter in the chuck. I then carefully skimmed the tool holder until the bottom tool mounting face was square.
They make a holder for parting tools, get one. Then, overhang. Too much sticking out of the chuck, you should have the tool as close to the jaws as you have nerve to do. Overhang again, with the double tool holder, you're giving the work the advantage and destroying rigidity. Everything about the tool should be kept as close to the tool post as possible. More overhang will guarantee poor results.Keep everything as close to the tool holder as possible.
Oh for heavens sake!! This is what happens now that schools no longer have woodwork and metalwork classes! You don't shim the toolpost! you shim the tool, all good lathe operators will have shim material available from 3mm plate to strips of beer can! And if you'd left the chuck key in the chuck in my metalwork class at school the master would throw a hammer at you!! But it tended to be the thick boys who didn't listen who got the bruises. NEVER EVER leave a key in a chuck!
Sorry bought this one and not recommend - doesn't hold the center each time when tight up - all over the place, chatter when extended tool, not rigid enough. Have to add the washer as lever end up hitting the holder - wasted money IMO. Now have to spend double for proper one for precise task.
thanks, have the same problem, just brought a mini lathe, your video helped alot
cheers Gary
Reverse lathe rotation, turn cutoff tool upside down. This will reduce chatter by reducing springing. Part of problem is lightweight bolt holding down the tool block. Also, any slack in the cross slide gibs and compound gibs will increase chatter by allowing oscillation.
you are doing good man . i got myself a 8x16 lathe about a year ago now and everything i now know i sussed it through trile and error , chek out a old american bloke called tubla cane on youtube you will learn lots from that man he is like a machine tool jedi keep up the work man.
I would like to make some spiral gears using this lathe and best way to upgrade motor for higher torque, and digital pitch relaying on chuck rotation angle.
Not sure if it will be of help to you but there is CNC software called mech3 it might be what your looking for? www.machsupport.com/
Cut some Aluminium cans up in too lengths the same width of your tools then pack up your tool, this is great for shim stock and for adjusting tool hight in a fixed tool post
I think about stepper motor or servo motor feed using Arduino and LCD screen. I will implement encoder on chuck shaft and program for pitch. If there is some open source available and anyone guide me I will appreciate.
thanks Mate. i just bought a 9 x 20 and having the same issue of not being centered. and was wondering what the Quick Change post was all about
Hi. Thanks for the video.
I just bought the same model, not from EBAY though. I got mine from a company called Amadeal.
I bought it to fit my ancient EW Stringer lathe ( www.lathes.co.uk/ew/).
The unit fitted my lathe perfectly. However, when I looked at the tool holders, I found that the bottom ledge of each tool holder ( where the bottom of the cutting tool will rest) was not parallel with the lathe ways. It sloped downwards by about 3 degrees.
Probably not a big problem for most cutting tools, but a potential disaster for a parting tool!
Not having a milling machine, I was struggling for a solution.
What I did, was to mount the tool post onto my lathe, and used a 6mm milling cutter in the chuck. I then carefully skimmed the tool holder until the bottom tool mounting face was square.
They make a holder for parting tools, get one. Then, overhang. Too much sticking out of the chuck, you should have the tool as close to the jaws as you have nerve to do. Overhang again, with the double tool holder, you're giving the work the advantage and destroying rigidity. Everything about the tool should be kept as close to the tool post as possible. More overhang will guarantee poor results.Keep everything as close to the tool holder as possible.
Oh for heavens sake!! This is what happens now that schools no longer have woodwork and metalwork classes! You don't shim the toolpost! you shim the tool, all good lathe operators will have shim material available from 3mm plate to strips of beer can! And if you'd left the chuck key in the chuck in my metalwork class at school the master would throw a hammer at you!! But it tended to be the thick boys who didn't listen who got the bruises. NEVER EVER leave a key in a chuck!
Why are you using a cutoff tool for facing?
search for my name on youtube you should find the mini machine shop. some of my videos may help you...
Sorry bought this one and not recommend - doesn't hold the center each time when tight up - all over the place, chatter when extended tool, not rigid enough. Have to add the washer as lever end up hitting the holder - wasted money IMO. Now have to spend double for proper one for precise task.
donde consigo mini torno , quiero uno...
www.arceurotrade.co.uk/
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