The Shop > Tools
Boley 4LV
RotarySMP:
About time I updated my thread.
The Boley is working nicely for me.
I managed to shear off the spindle lock pin, by trying to unscrew the chuck with a big Lever, without engaging the back gear.
The torque would have been around 750nm, and went straight on to that pin. The back gear would have reduced that by 3.5x.
I made a new pin, and fitted it.
Mark
RotarySMP:
I have also been collecting collets. Got a partial set of imperial collets from Ebay.co.uk, and a partial set of metrics from a guy here in Vienna, who also sold me a Spin indexer for the 358E / W23 / A12 size 4 collets Boleys use. There is a guy on Ebay Germany selling single collets, so I have ordered the main ones I am missing. I'm going to mix the imperial and metric collets up on a single collet board, as the 1/64" spacing gives 0.4mm steps, and I have all the small ones in imperial. 0.4, 0.8, 1.2mm... makes for a nice set. I'll post Pictures once I have finished the collet board.
Mark
RotarySMP:
There was a excessive play in the carriage drive, as in 180° of handle rotation. The drive handle has an idler to change rotation directions, and the roll pin to fix it to it's shaft was severed in three pieces. I doubt the roll pin was original. This lathe was what is referred to in German as a Fettopfer, a grease victim. It was designed for all these mechanisms to be regularly oiled.
Made a new pin for it which has cut the play dramatically. Once I have the backing plate for my Bison 125mm four jaw independant chuck, I will Mount that housing, bore out the slogged out shaft bore and bush it.
RotarySMP:
As there was no change wheels with the lathe when I got it, I hae not been able to cut threads. I missed out on a set of Change wheels which failed to sell on Ebay.CO.UK. The seller had sold them cheap to an Artist who made an installation out of them :doh:
Since I have already CNC'd one lathe, I decided to do an electronic leadscrew on the Boley for now. I am mostly enjoying having a Manual lathe again, so I am not sure if I will CNC it completly.
First thing needed is a spindle Encoder. Since I'll be using LinuxCNC, it need a 1/rev indexing puls, plus a more/rev encoder signal. There are lots of ways to acheive this, but I tend to choose the most complicated. In this case I have made a steel 40 count encoder disk, with one long slot and fitted it to the existing fine feed drive pulley.
RotarySMP:
I have started making the Z Axis drive motor mount. A Nema 34 stepper will be mounted. I don't like irreversable modifications, so the mount will be the same as the existing Boley fine advance drive, which clamps onto a shaft feature concentric to the leadscrew.
Pretty painful process milling the 7mm recess for the motor on the Deckel G1L. I can only cut 0.5mm per pass.
I wonder what the Austrian Ö-Norm material number is for that shiny steel which Rob Wilson uses.
Since I haven't received the backing plate for my Bison yet, I had to mount the 100mm four jaw in the 115mm three jaw.
Mark
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version