Kaiser Piccolo Boring Head Repair

October 14, 2024 in projects

The Kaiser Piccolo is an exquisitely made mid sized boring head with boring and automatic facing functions. I got a ISO30 one in a very nice condition together with a bunch of tooling. When tested it performed very fine but I couldn’t switch easily between facing and boring (marked as P and A in the head, maybe for the french «planage» and «alésage»). It needs to be serviced to cope with this jam.

Boley Leinen LZ4 lathes links compilation

July 13, 2021 in library

This is a compilation of interesting sites and documents around Internet about Boley Leinen LZ4 lathes series.

Boley-Leinen LZ4SB Carriage Stops

May 14, 2019 in library

After a request from Chris Maron, in this entry I report about the Boley-Leinen LZ4SB carriage stops. I would like the entry to be sufficiently detailed to allow anyone to reproduce the original stops. Sadly, I have no cross slide stops. If you, beloved reader, have these stops, I invite you to report about them and let me know! I should add that the stops shown here are of “ordinary” type.

Refurbishing the Boley Leinen lever tailstock (I)

September 4, 2016 in projects

The tailstock Some time ago I bought an old series Boley Leinen lever tailstock to be fitted to my lathe. This is the tailstock: It is of the old type because it uses a split casting to lock the barrel as you can see in the picture. Leinen buid two flavors of this tailstock: one with a barrel that takes 363E collets (the 25mm collets) and other that takes the 323E collets (15mm collets).

Boley Leinen LZ4SB lubrication

August 15, 2016

The lubricants to be used After translating the oil tables that appear in the Boley Leinen datasheets to ISO grades, and according to my oil dealer, I ended using these oils: Spindle oil: Renolin MR 1 (ISO VG 5) Gearbox oil: Renolin MR 20 (ISO VG 68) Grease: Krafft Lithium grease NLGI 2 I want to add some notes about lubrication: Renolin MR is a detergent oil. This helped to clean the gearboxes from the old sludge.

Boley Leinen collet closer repair

March 23, 2016 in projects

Some months ago I bought an old Boley-Leinen collet closer. The gadget is almost complete but: It lacks the supporting bars The ball plungers were broken The collet closer levers were broken The cosmetic was not at its best The collet closer as bought The following picture shows the collet closer assembled as usual: Below, you can see some details of the parts. In the first picture, you can see the closer body.

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