What's going on in your shop? Show us whats going on, and talk a bit about your work!

IMG-3784.jpg


IMG-3785.jpg



IMG-3783.jpg
 
marthinus said:
Still grinding.
Click to expand...
pafka said:
is that a finish right off the grinder? what kind of sorcery is this?
Click to expand...

Straight off the grinder. I grind SLOW, but also been experimenting a bit.

Grit progressions: 60, 120 (VSM XK870X) 240, 400 (VSM XK870F), then AO 400, 600, 800, 1200 ( VSM: K712F)

Then I modified A5 Trizact belts by adding Kemet Diamond compound 8 micron on one belt and then a 3 micron on another.

The 8 looks good but I am spending a lot of time on very fine scratch removal on the 3, little 1200 grit marks that I can’t spot using the 8 micron.

I can then hand satin 1 micron.

The results are basically a full mirror at 3 off the grinder. The picture is the first round of 3 micron. There are still some scratches needed to be removed. I will add fresh 3 micron paste on the next grinding day and that should clean up everything.

The steel is M390 at 62.5 hrc and buffing, as I would do with CPM154 or similar, did nothing to the steel really, just washed out my sharp transitions. In any event. I am afraid of a buffer 😊
 
marthinus said:
Straight off the grinder. I grind SLOW, but also been experimenting a bit.

Grit progressions: 60, 120 (VSM XK870X) 240, 400 (VSM XK870F), then AO 400, 600, 800, 1200 ( VSM: K712F)

Then I modified A5 Trizact belts by adding Kemet Diamond compound 8 micron on one belt and then a 3 micron on another.

The 8 looks good but I am spending a lot of time on very fine scratch removal on the 3, little 1200 grit marks that I can’t spot using the 8 micron.

I can then hand satin 1 micron.

The results are basically a full mirror at 3 off the grinder. The picture is the first round of 3 micron. There are still some scratches needed to be removed. I will add fresh 3 micron paste on the next grinding day and that should clean up everything.

The steel is M390 at 62.5 hrc and buffing, as I would do with CPM154 or similar, did nothing to the steel really, just washed out my sharp transitions. In any event. I am afraid of a buffer 😊
Click to expand...
thanks for the summary, it's very much appreciated. could you estimate the belt life in any way? one reason I stop at lower grits is that the higher grit belts simply do not last very long for me, so they do not seem like a good value proposition to me (BUT, of course - I am an amateur, so I am willing to trade time for money more than a professional would).
The finish looks awesome.
 
pafka said:
thanks for the summary, it's very much appreciated. could you estimate the belt life in any way? one reason I stop at lower grits is that the higher grit belts simply do not last very long for me, so they do not seem like a good value proposition to me (BUT, of course - I am an amateur, so I am willing to trade time for money more than a professional would).
The finish looks awesome.
Click to expand...

The 712F is a compact grain so when they burnish rather than cut I refurbish them with a diamond disc. I will have to let you know how it goes.

The 1200 grit had to be redressed every three facets to remove the marker I put on each hollow facet. So it was refurbished 8 times for 6 blades.

The A5 is unknown. The Kemet compound is something else and even when clogged will still cut. So will see.

This is the first time I am using so many grit progressions to see if it helps with belt life.
 
pafka said:
thanks for the summary, it's very much appreciated. could you estimate the belt life in any way? one reason I stop at lower grits is that the higher grit belts simply do not last very long for me, so they do not seem like a good value proposition to me (BUT, of course - I am an amateur, so I am willing to trade time for money more than a professional would).
The finish looks awesome.
Click to expand...
I picked up a rubber belt eraser, and realized I've been missing out! That thing is amazing. It doesn't take much pressure to get the schmutz off your belt, and make sure your belt's not too hot or you'll end up with rubber smudges on your steel
 
Lorien said:
I picked up a rubber belt eraser, and realized I've been missing out! That thing is amazing. It doesn't take much pressure to get the schmutz off your belt, and make sure your belt's not too hot or you'll end up with rubber smudges on your steel
Click to expand...
thanks, I also have this big rubber stick that I use for that. It cleans wood dust really well, but it did not seem to do much for the steel belts. maybe I should give it another chance, thanks.
 

Monday, had this dude. Come rip out my drill press and ride off on his bike.

Now i have to keep everything put up. Make sure it doesnt get stolen. Thankfully he took the cheapest big thing out there. If lost my grinder or kiln, that would have a giant setback.

Its a giant inconvenience to have to move this stuff around to use it now. I literally cant even really pickup the grinder on its own. I mean i can but not really maneuver it i should have a cart getting delivered today to put it on.

Anyway. This happened at the worst possible time. Just dropped all my $ on a rockwell tester so i can't buy a new drill press right now.
 
Blankblank said:

Monday, had this dude. Come rip out my drill press and ride off on his bike.

Now i have to keep everything put up. Make sure it doesnt get stolen. Thankfully he took the cheapest big thing out there. If lost my grinder or kiln, that would have a giant setback.

Its a giant inconvenience to have to move this stuff around to use it now. I literally cant even really pickup the grinder on its own. I mean i can but not really maneuver it i should have a cart getting delivered today to put it on.

Anyway. This happened at the worst possible time. Just dropped all my $ on a rockwell tester so i can't buy a new drill press right now.
Click to expand...
shiiiiit....
 
Blankblank said:

Monday, had this dude. Come rip out my drill press and ride off on his bike.

Now i have to keep everything put up. Make sure it doesnt get stolen. Thankfully he took the cheapest big thing out there. If lost my grinder or kiln, that would have a giant setback.

Its a giant inconvenience to have to move this stuff around to use it now. I literally cant even really pickup the grinder on its own. I mean i can but not really maneuver it i should have a cart getting delivered today to put it on.

Anyway. This happened at the worst possible time. Just dropped all my $ on a rockwell tester so i can't buy a new drill press right now.
Click to expand...
Hey That is Awful,

I have three drill presses one that's not even ever plugged in, I wish that you were closer.
Whats your PP and I will send over a few dollars to help get you back on the road, pretty tough making a knife with no press!
 
You must log in or register to reply here.
Back
Top