Sorry in advance for all the newbie questions that I'm likely gonna send today. Had lots of shop time yesterday which got me thinking about some stuff. How much time do you spend hand sanding? I spent about an hour per blade yesterday and after 3 blades I had enough. I'm just using the hardware store gator paper from 3M (I think). It seems to take forever to get all the grinder marks out with 80 grit before I go on to finer. I was only going to a satin 320 finish. I am sure that a better grinder with finer belts would help a lot. I went to 180 on my 4x36 which is all I have to work with but is there something I can do to speed this up? Any advice would be appreciated.
I take it down to 400 with the belt sander then 400 at 90 degrees and work up to 2000 grit before buffing. Time spent is far to long to be honest and wish I had a little power sander
An hour a blade sounds about right. I sometimes put it on the buffer with some black compound and reveal any scratches, then get back to sanding where needed. Be sure to flush the paper with water/Windex/WD-40 or whatever you are using. Galing will set you back, so keep the sandpaper clean. Don't be afraid to jump down a grit to work some scratches out. I have started using conditioning belts to reduce or eliminate hand sanding. (Others will use a cork belt charged with abrasive compound.) This creates a brushed look. It depends on the look you are going for. Dan
Dan pretty much nailed my process also. Even if I am not going for a mirror finish I take it to the buffer to high light any scratches that may need special attention.
I will go to 220 on grinder to clean up plunges. Then will go to my disc grinder to clean up scratches to 800 grit. Then will hand sand with 600 grit for finish. I have the Neilsen disc grinder that is absolutely precision made and it has saved me so much hand sanding time.
I've gotten to like hand sanding. I find it strangely meditative and I prefer the satin finish of hand sanding to buffed. I go to 220 on the grinder and then up to 1500 by hand over several days. I spend about an hour per grit (approximately the time it takes to use up a sheet). If it's not a full flat grind, I'll often hand sand the blank to 600-800 before grinding the bevels.
I don't use any lapping lubricant. I dip the blade in water to keep blade cool which ends up on sandpaper that is attached to disc. I find that the paper cuts much better dry than wet. I've been using Norton black ice for many years and when I run out I want to try Rynowet sandpaper. I also have numerous removable discs for my disc grinder. That way I can switch grits without pulling off a good sheet and wasting it. I can just switch complete disc. Also seem like when the sandpaper gets wet it leaves stray deep scratches to often.
I checked out the Neilson website. Boy do they have some room for additional information... Got the basic idea but would still like to see a bit more detail on what this offers. I'm sure it works great.
i contacted the fellow and told him about this discussion. Hope he shows up. I just finished grinding a Stainless steel Damascus blade on this disc grinder to 1200 grit. Now I can go back to 800 or 1000 hand sand before etch. Should not take long. Variable speed ( I never go over 20%. Seems to cut way better at slow speed) disc grinder has saved me many hours of hand sanding.
That's good of you to let him know we are taking about his product. Sounds like a very small company then which sort of makes sense. I'm liking the idea of not having to do as much hand sanding of I can help it. Thanks.
Feel free to give me a call, I can tell you lots about the disc. As far as the website goes I hope to be posting a video soon. My number is 250-377-3883. Or I can call you as well Rod