I notice that you have an air spring return on your X1. Though it is common to see on the X2 mill, I have not seen that on an X1. Is it required...or does it just make it easier for your Z-axis motor? I am contemplating the LMS 4700 SX1.
+Herr Schmidt Actually, at the time of shooting this video, the mill did not have a z-axis motor. It's a fully manual machine (and will remain as such as long as I own it). However, it still helped immensely when I had to crank the z-axis up by hand. I have since added a power-feed DC motor to the z-axis, and the air spring certainly helps with that. Speaking of X2 machines, I am honestly quite surprised that all the commercially-available (and many DIY) kits for adding an air-spring have the mechanism inside the column, making installation unnecessarily difficult and complicated, as well as requiring a tower of unnecessary parts to stick out the top. Why they don't simply bolt it to the side as I have done here is beyond me.
Thank you. It seems to me that an advantage of the X1 is having a z-axis screw instead of the rack-only design of the X2. All of the Bf series mills have a z-axis screw. And I agree, the air springs sticking up in the air are downright ugly. Do you remember what the size is of your air spring?
+Herr Schmidt It's a 30 pound unit, 12" long when fully compressed, and I think 22" when fully extended. 35 pounds probably would have been a better choice.
My guess is the mills spindle would have to have a bit of run out as well as the drill chucks arbor. You most likely got very lucky where whatever runout the chuck came with cancelled out the other areas instead of stacking up and increasing the runout that almost always happens. I hope you marked the spindle and arbor for that extra low runout position. Whatever was the cause it's still more than a little impressive. My Albrecht keyless averages about .0015".
Depends. The my machine sees less than a tenth runout at the taper. A Rohm Spiro 1/2 is .0002-.0006 throughout its range, flipped 180* or not. I also have a smaller Rohm Spiro that indicates .0001-.0003 throughout its range. I'm surprised by the performance of your Albrecht. I'm actually looking at a used one now, its jaws look decent and the price is right, but if I'm looking at .0015, no reason to change. I appreciate your comment.
@@felixf5211 If I remember correctly that .0015" is Albrecht's maximum allowable for a new chuck so it would be within there specifications. Unfortunately I never checked the Jacobs brand arbor before pressing it onto the chuck, so it's not impossible some or even most off the run out might be there and the chuck is actually quite a bit better than that. Any drilled hole is still by most standards a rough machined surface anyway. When you want a better and more exact location, roundness and straightness you'd drill under size and single point bore and then maybe ream for exact size. So I can live with what I'm getting. That's some really decent accuracy those Rohm Spiros can do and I'll be keeping that in mind for the future.
Now that's what I'm talking about! Little to no runout. I'm thinking about investing in one of these.
I'm honored to confirm that Llambrich is a Catalan family owned company, never owned by our competidors.
Just got me one. I love it !
That's very impressive. I thought I was alone with a press that had a runout of around a tenth (.0001") with a Rohm keyless. Great to see!
Great! I envy you and my congrats!
I notice that you have an air spring return on your X1. Though it is common to see on the X2 mill, I have not seen that on an X1. Is it required...or does it just make it easier for your Z-axis motor? I am contemplating the LMS 4700 SX1.
+Herr Schmidt Actually, at the time of shooting this video, the mill did not have a z-axis motor. It's a fully manual machine (and will remain as such as long as I own it). However, it still helped immensely when I had to crank the z-axis up by hand. I have since added a power-feed DC motor to the z-axis, and the air spring certainly helps with that. Speaking of X2 machines, I am honestly quite surprised that all the commercially-available (and many DIY) kits for adding an air-spring have the mechanism inside the column, making installation unnecessarily difficult and complicated, as well as requiring a tower of unnecessary parts to stick out the top. Why they don't simply bolt it to the side as I have done here is beyond me.
Thank you. It seems to me that an advantage of the X1 is having a z-axis screw instead of the rack-only design of the X2. All of the Bf series mills have a z-axis screw.
And I agree, the air springs sticking up in the air are downright ugly.
Do you remember what the size is of your air spring?
+Herr Schmidt It's a 30 pound unit, 12" long when fully compressed, and I think 22" when fully extended. 35 pounds probably would have been a better choice.
Thank you. Much appreciated.
My guess is the mills spindle would have to have a bit of run out as well as the drill chucks arbor. You most likely got very lucky where whatever runout the chuck came with cancelled out the other areas instead of stacking up and increasing the runout that almost always happens. I hope you marked the spindle and arbor for that extra low runout position. Whatever was the cause it's still more than a little impressive. My Albrecht keyless averages about .0015".
Depends. The my machine sees less than a tenth runout at the taper. A Rohm Spiro 1/2 is .0002-.0006 throughout its range, flipped 180* or not. I also have a smaller Rohm Spiro that indicates .0001-.0003 throughout its range. I'm surprised by the performance of your Albrecht. I'm actually looking at a used one now, its jaws look decent and the price is right, but if I'm looking at .0015, no reason to change. I appreciate your comment.
@@felixf5211 If I remember correctly that .0015" is Albrecht's maximum allowable for a new chuck so it would be within there specifications. Unfortunately I never checked the Jacobs brand arbor before pressing it onto the chuck, so it's not impossible some or even most off the run out might be there and the chuck is actually quite a bit better than that. Any drilled hole is still by most standards a rough machined surface anyway. When you want a better and more exact location, roundness and straightness you'd drill under size and single point bore and then maybe ream for exact size. So I can live with what I'm getting. That's some really decent accuracy those Rohm Spiros can do and I'll be keeping that in mind for the future.
Hello, thanks for sharing. What is the model and brand of the drill press?
It's not a drill press, it's a Sieg X1 micro milling machine.
@@Orcinus24x5 Thanks for your prompt answer. It is more than appreciated.