Alejanders
Member
I want to tell a story of my disk sander.
First colclusion from all it - if you WANT something - you may DO it.
Second - if you can buy good stuff - buy it, not make.
Greedy person pays twice.
My first woodworks was handle for a knife (junksteel Indian damascus) and wooden USB thumbdrive.
I have made it with file, sanpaper and small metal saw (that was bought to open coconut).
That is a knife:
And thumbdrive:
It was not easy, so I decided to use some machine tool. I have no workshop (except balcony 3*6 feet) so looked
for compact or disassemblable stuff.
First "sander" was screw gun with clamp and 125mm (5") sanding disk with box as table.
I have no photo with disk, but there is photo with felt disk.
There was a lot of disadvantages (noise, low accuracy and control etc...) so I decided to make "real disk sander".
Draft:
Writing means: Side view, motor, angle grinder velcro disk, table.
I took 90W 3-phase asyncronic motor (2750 rpm), made control unit for it. You may see main power switch with LED (left), reverse switch (right),
ON/OFF switch (green on top) and start (blue on top).
I used 12 mm (1/2") plywood as bed.
Quick-removable table holds with 4 pins. It allows to change velcro sanpaper very quck.
Also I found turner, who made for me metal sleeves to fit sanding disk on motor's shaft.
Motor is quiet and low powered (about 50W on 1-phase), that is enough for small things like knife handle or thumbdrive.
Main disadvantage was softness and flexibility of sandind disk. Also table had no angle guide (it is senseless for flexible disk).
But soft disk had advantage - it was very comfortable to make curves and I made a lot of things on that sender.
Also I can attach Jacob chuck and use buffing wheels.
Stuff made on that sander:
I have looked for firm disk, but disks for angle sander was flex or curve. So I decided to make new table and firm disk.
Bellow is a design: table with rotating mechanism, angle guide and disk. I gaved that drawings to turner and he made for me disk, angle guide and table.
I used 15 mm (5/8") plywood and 5 mm (1/5") textolite (micatra) as sander bed.
Same contril unit, plywood disk with velcro.
Now sander much bigger and I cannot store it on windowstill.
But now it can be called sander.
Drawings:
First colclusion from all it - if you WANT something - you may DO it.
Second - if you can buy good stuff - buy it, not make.
Greedy person pays twice.
My first woodworks was handle for a knife (junksteel Indian damascus) and wooden USB thumbdrive.
I have made it with file, sanpaper and small metal saw (that was bought to open coconut).
That is a knife:
And thumbdrive:
It was not easy, so I decided to use some machine tool. I have no workshop (except balcony 3*6 feet) so looked
for compact or disassemblable stuff.
First "sander" was screw gun with clamp and 125mm (5") sanding disk with box as table.
I have no photo with disk, but there is photo with felt disk.
There was a lot of disadvantages (noise, low accuracy and control etc...) so I decided to make "real disk sander".
Draft:
Writing means: Side view, motor, angle grinder velcro disk, table.
I took 90W 3-phase asyncronic motor (2750 rpm), made control unit for it. You may see main power switch with LED (left), reverse switch (right),
ON/OFF switch (green on top) and start (blue on top).
I used 12 mm (1/2") plywood as bed.
Quick-removable table holds with 4 pins. It allows to change velcro sanpaper very quck.
Also I found turner, who made for me metal sleeves to fit sanding disk on motor's shaft.
Motor is quiet and low powered (about 50W on 1-phase), that is enough for small things like knife handle or thumbdrive.
Main disadvantage was softness and flexibility of sandind disk. Also table had no angle guide (it is senseless for flexible disk).
But soft disk had advantage - it was very comfortable to make curves and I made a lot of things on that sender.
Also I can attach Jacob chuck and use buffing wheels.
Stuff made on that sander:
I have looked for firm disk, but disks for angle sander was flex or curve. So I decided to make new table and firm disk.
Bellow is a design: table with rotating mechanism, angle guide and disk. I gaved that drawings to turner and he made for me disk, angle guide and table.
I used 15 mm (5/8") plywood and 5 mm (1/5") textolite (micatra) as sander bed.
Same contril unit, plywood disk with velcro.
Now sander much bigger and I cannot store it on windowstill.
But now it can be called sander.
Drawings:
