Antique Hand Cranked Grinder - Restoration

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In this video i'm restoring a very old hand cranked grinder.

A few weeks ago I visited my friend and we took a closer look at his barn, looking for something interesting to restore. As soon as I saw this hand cranked grinder, I knew that this would make a nice restoration video. It was all covered in wood dust and the visble steel parts were very rusty. It was still working, but the grinding wheel was very unbalanced.
When I was cleaning the parts with the parts washer I found a lot of nails and screws in the gearbox, I guess I was very lucky that I didn't found any teeth from the gears. The pin connection from one gear was damaged very hard. I filled it all up with welding and machined all surfaces clean again.
I decided to make a brass sleeve for the wooden handle and glued it in with epoxy.
I only cleaned the grinding wheel with high pressure water and it worked very well. Due to the age of the grinder and the cleaning with the water, the two paper discs were lost. That's why I printed two new ones with my logo on it and they turned out very nice. They're there to lower the pressure on the grinding wheel from the clamping.
The cover plate from the gearbox didn't fit at all, it didn't even cover everything. Because of that I decided to make a new one.
For the painting I choose a black coat, as it was originally, I used filler on it to get a nice and smooth finish.
I'm very happy how this project turned out, I'll keep this item for myself for display.

I hope you like my work and the video.

Huge thank you to all of my Patreon and PayPal supporters and specially to:

Scott Meola
Micky McKay
Adel AlSaffar
Alan Hanson
Alex Roussos
Andreswara Hermawan
Andrew Phillips
Dan Williams
Joan Casanovas
Joel Miller
John Romero
Jonas Richartz
Jonathan Heckerman
Paul Mampilly
SA Graver
Trevor Kam
Vince Valenti
Zachary Grimes


00:00 preview
00:37 disassembling
02:13 showing all the parts
02:28cleaning the parts with the parts washer
02:47 removing the old paint with paint stripper
03:32 sandblasting
04:17 restoring the holder
04:39 restoring the gearbox case
05:11 restoring all shafts and gears from the gearbox
07:45 making a new pin connection
08:17 restoring the crank
08:40 restoring the wooden handle
09:05 making a brass sleeve for the wooden handle
09:51 making a steel cover for the wooden handle
10:58 making a shaft for the wooden handle
12:14 restoring the grinding wheel
13:11 making a new wooden sleeve for the grinding wheel
14:03 making a brass sleeve for the wooden sleeve
15:01 restoring the clamping disc for the grinding wheel
15:21 restoring the big shaft
15:48 making a new cover for the gearbox
16:32 restoring the joints for the big shaft
17:18 sandblasting again
17:32 bluing the steel parts
17:55 applying two component filler and sand it
18:20 applying two component primer
18:44 wet sanding
18:58 applying two component coat „jet black“ (RAL 9005)
19:30 showing the restored bolts and nuts
19:44 showing all the parts before reassembling
19:58 reassembling
22:19 showing the restored item
23:09 final test

Time and costs of this restoration:

I was working on this project over 1,5 weeks
$20 hand cranked grinder
$20 2k primer
$20 2k coat „jet black (RAL 9005)
$5 wood for the sleeve
$5 grease inlets
$0.4 thick paper for the grinding wheel

My camera:
Panasonic HC-V180

If you have any questions about the process, machines i'm using or other stuff, just ask me in the comments. I read them all and i try to reply as soon as possible.

Sorry for my bad english, it's not my language. I try my best to improve my technical english.

Subscribe for more of my content. I'm uploading videos about mechanical stuff, as new creations and buildings and also restorations.

Thank you for watching :-)

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