Monday, May 30, 2011

Construction

Putting it back together took less than an hour. Now the lathe is finished and first sanding try is done.
Measured up largest stock too: 125cm(50in) in length and 50cm (19 in) in diameter.
 
 All fasteners needed



 

Sunday, May 29, 2011

Painting

Today I got grinding done, sandpaper clued and painting done too. I took it apart to make painting easier. then washed oil and dust away and hanged all the parts to the ceiling. And painting could began. Painting job was done with air compressor and paint gun. It looks fine gray now.


Saturday, May 28, 2011

Sander

Today I finally got to the sander part of the lathe. I welded a nut to the metal plate and drilled a locking hole into the nut. Threaded with M6 thread a locking bolt can be tightened to avoid unscrewing. Metal sheet wasn't flat so I attached a pine board to it with screws and sanded it flat. Also I made frame to the sanding support board. It was kind of tricky to get it to the right angle but it looks fine now. Now the Lathe is waiting for some grinding and painting. Also the sanding plate needs a  sandpaper to be glued on. Motor is mounted too.

Friday, May 27, 2011

lathe itself

Whole lathe looks like this:
An a lot of woodshavings:

Turning jobs done before finishing

First I tried to make something with smaller diameter because of high speed with 1:2 temporary belt reduction and temporary placed motor.





 Then I made my first really useful thing on my lathe: a new handle for my umbrella.
And in place: Larger nut is for opening.

 Trying somethin larger with holding plate. Birch log was half dry half wet and with my bad chisels and too high speed (1400rpm) didn't get good results.


 And something really useful for the lathe:


 A six speed speed reduction pulley. To turn straight pulley I had to drill 20mm hole before turning and then replace lathe's shaft with longer to mount stock on the shaft.
 It is made out of green birch log. I grinded a spechial chisel out of an old file for the belt grooves. Guality is fine and I hope that it will not brake while drying.

Bearings

I used ucf 204  square flanged cast housing:20mm inner diameter bearings Mounted to the u channels with 10mm bolts.



 To hold stock I have made one bowl holder and one spindle holder out of metal plate and 20mm nut. To make round plates I used grinder while turning roughly cut and nut welded in place on plate. Finished product is quite strait.



Thursday, May 26, 2011

Welding done

Having shopped for materials and looking around house, cutting and welding could begun. For the main shaft and tailstock I took 20mm threaded rod. I wanted with 8.8 strength but got 4.4 one. 2 metres were about 10 euros.
 Tailstock and support are sliding on two 38mm pipes. Large homemade washers clamp both of them to the bed. I added a short pipe to the supports washer to lock it between bed pipes. The nuts were made better too.

Second attempt

Having some time while waiting exam results I thought that I should do something with a water pump which didnt had enough flow rate to actually pump water anymore. So I cut off the pump part of the pump.



So I got 330 W motor.



Next I drilled 12mm hole into aspen log and put it onto shaft. Fixed motor on the table with clamps and put a piece of angeled iron in vise to act like support for turning. And here is finished pulley 6cm in diametre.
I did the same with a pine log for the other pulley. About twice larger to get speed down. Now I had two pulleys. It was time to do some Sketchup modeling.

 It actually changed a bit to give more tolerance between the bed and a table.

Getting started

 First attempt was about a year ago. First try was not very successful. It involved a handheld drill fixed to the wooden frame. Unfortunately it was not sturdy enough and I could not turn anything useful on it. The drill was too slow and made greate amount of noise too. So building stopped for a while.