Thread: My first 3 Razors WIP

Originally Posted by RezDog

I have a question about jimps, not specifically these ones but just jimps in general. I presume they are cut with a file that has the teeth in alignment. When the razor is finish the jumps are nice and polished through out. Looking at the after heat treat pictures it leaves me wondering if those same files are used to clean out and polish the jimps to leave them pristine or is there another process for that.

This is my first time using such a file, and I assume that I will use the file to remove most of the scale and then resort to small files with sandpaper wrapped around them or something like that, in order to polish between the checkering.
If anyone else uses a checkering file like I did, please let me know how you clean and polish after heat treatment

yep - you are on the right track. i use the file again as it is removing scale, not hardened steel. Then some wet dry paper, sometimes wrapped around a triangular file to get in the grooves. Then a sisal wheel on the buffer with cutting compound, followed by soft wheel with polish. Then get an old toothbrush and some rubbing alcohol and scrub out the jimps to get all the compound out. i do this after the cutting compound, then again after the polish. i do this [I]before[I] i start the final hollow grind and thin the blade down. Much safer.
Also - this is only on the jimping. The sides of the tang {on folding razors} i do not want to risk rounding, so it on the sides is all done by hand with wet dry paper on a flat rubbing stick.
When all is nearly finished, i clean again with alcohol and work a couple of coats of ren wax into the jimping, pivot hole and all around the tang to give some protection from rust.
Looking good with your work there.
Regards.
Adam

Be very careful if you're using a file against/near steel hardened to 60+Rc. You will roll the file teeth in an instant otherwise. That is approaching the hardness of the file if not equal. I've seen many a file ruined that way during my machining career.

Sisal wheel & buffers do fine for me

Ditto. I've ruined more than one file on 'too hard' steel.
My good files only touch annealed steel anymore. that way they'll be happier

I've done some post HT grind, and up to this point I have been grinding with 60 grit belts, now I will be doing the last grinding with 120 grit, then establishing the bevel and tune the final grinds as I move up through the grits.

(In the first picture only two of the razors had been ground, as you can see) The edges are about 0.30 mm thick.



Thank you for all your help so far! I am having alot of fun with these!
Kind regards
Max

Great thread, thank you for keeping us posted.
The Q&A and comments have also been very helpful in understanding the process.
Looking forward to seeing the finished product.

Having fun and doing a great job :<0) I am watching your progress because I too am having some fun on my own. Thanks for sharing.