Heavy duty drill press vise with 13cm (5inch) wide jaws restored to be used with an appropriate sized drill press. Since this restoration process is as simple as it can be, I decided to make my own hard jaws out of an old and worn down file to make more interesting.
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Index of operation and materials:
2:15 One of the old jaw bolt was stuck. Since I knew I was going to make new jaws and I only had one of the original anyway I decided to cut it off.
3:24 Existing mounting holes preserved as I have been able (after much sturggle) to get stuck bolt out
3:47 Scrape off loose dust and grease
4:07 WD40 as tap lubrificant
4:15 Go over existing thread with tap to clean the threads and holes
4:40 For small parts the bench grinder / buffer with a steel wire wheel is the best
5:50 Spray degreaser
6:06 Grind off some big weld spots
6:30 Electrolysis: water and sodium carbonate solution, parts connected to negative side and steel sacrificial anodes to positive sice of a DC power supply (car battery charger). 2-3 hrs at 5amp.
7:00 Remove patina with steel wire brush in water
7:24 I could have left the vise in the electrolysis bath longer and skip this step, but I was in late!
7:41 a die grinder with a small steel wire bit is super handy for small places like this
8:20 Clean holes well with nitro solvent and alcohol
8:46 Two part filler (I notices chips tend to fall in holes like this if left open)
9:27 Grind flush with palm sander and low grit sandpaper
9:53 Old, thick, and worn out file
10:10 Cut required lenght with angle grinder and cut off disk
10:34 The file is hard, it snaps!
10:56 Annheal the file, hearing to 860 and letting to cool slowly
11:20 Difference between hard and annhealed file, hear the sound
11:50 Now the steel can be cut with the metal cutting bandsaw
12:24 Grind square with 2x72 belt grinder
11:52 Center puch
13:04 And drill holes
13:33 Now I can harden the steel by heating to critical and quenching in warm oil
14:05 And then temper for 2hr (jaws harness ended up between 50 and 55 Rockwell)
14:30 Making fasteners for the jaws out of hardware I have available, heads needed to be ground smaller on the 2x72 belt grinder
15:00 And also cut to lenght on the metal cutting bandsaw
15:47 Lead scwer was almost broken at the end, it has been repaired poorly so I went over with more welds
16:20 and ground new slot for the grub screw with die grinder and stone bit
17:58 Add a thin piece of copper sheat as spacer.
18:35 Grub screw replaced with new one
All parts are and will be keept well lubed up, I like this one raw steel!
Thanks a lot for watching, I hope you liked the video!
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23 янв 2020
