How To Make Your Own Naked Portafilter - Page 2
- Fr. John
- Posts: 198
- Joined: 18 years ago
I know this has been done before but thought I would show my results. I am surprised at how easy this was. I know brass is soft (I was a fine art metals major) but wasn't sure how clean a hole saw would cut. After my brother and I came up with this super complex jig for holding the work piece, it went like butter. Now I have to master using it.
I thought the pic taken right after the cutting was the most interesting.
I have to admit it was kind of fun and saved me $60+.
I thought the pic taken right after the cutting was the most interesting.
I have to admit it was kind of fun and saved me $60+.
Fr. John
- cannonfodder (original poster)
- Team HB
- Posts: 10497
- Joined: 19 years ago
Nice job. Next time I will have to invest in a hole saw.
I took a second look at your portafilter. It looks like the base is about half as thick as the one I cut. When I did my Isomac PF, I remember it taking less time and effort than that Faema I cut.
I took a second look at your portafilter. It looks like the base is about half as thick as the one I cut. When I did my Isomac PF, I remember it taking less time and effort than that Faema I cut.
Dave Stephens
- Fr. John
- Posts: 198
- Joined: 18 years ago
Thank you.
I think it took about 5 minutes to make the cut. I really went slow and used a lot of cutting fluid. I'm still amazed how cleanly it cut, virtually no burr when done. A little work with a burnisher and some sand paper and it was perfect.
I think it took about 5 minutes to make the cut. I really went slow and used a lot of cutting fluid. I'm still amazed how cleanly it cut, virtually no burr when done. A little work with a burnisher and some sand paper and it was perfect.
Fr. John
- pravspresso
- Posts: 54
- Joined: 18 years ago
- Fr. John
- Posts: 198
- Joined: 18 years ago
Too bad you didn't use a hole saw, you'd have been done in 10 minutes. 3 hours sounds like am awful long time.
Good luck though.
Good luck though.
Fr. John
- pravspresso
- Posts: 54
- Joined: 18 years ago
Yeah..i would have..but i didn't scroll down this blog.
I just saw the first set of pics.
Otherwise..this portion took me about 10min.
I picked up a dremel all carbide bristle type brush attachment.
Tested it out on one area...cut it like butter in 30 seconds.
I'm guess-timating a solid hour to finish this up.
I just saw the first set of pics.
Otherwise..this portion took me about 10min.
I picked up a dremel all carbide bristle type brush attachment.
Tested it out on one area...cut it like butter in 30 seconds.
I'm guess-timating a solid hour to finish this up.
- pravspresso
- Posts: 54
- Joined: 18 years ago
- barry
- Posts: 637
- Joined: 19 years ago
just an fyi: if you dress up the center disk so there are no sharp edges or such nastiness, they make really good doo-dads for rugrats to play with. if you have two, they are great tiny cymbals with excellent tone.
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- Posts: 34
- Joined: 18 years ago
What size hole-saw did you use? I was looking at some at the hardware store today and some had a mandrel (a bit in the center to guide the saw) and some did not. My first thought was the mandrel would be important to keep the saw centered, but then I wondered if it would get in the way as the saw went deeper. Did you use a drill press or just hand-held?Fr. John wrote:I think it took about 5 minutes to make the cut. I really went slow and used a lot of cutting fluid. I'm still amazed how cleanly it cut, virtually no burr when done. A little work with a burnisher and some sand paper and it was perfect.
Cheers,
Andrew
- Fr. John
- Posts: 198
- Joined: 18 years ago
The size of hole saw will depend on your PF. Mine was perfect at 2 ¼" w/ a mandrel. I wouldn't want to do it without the center bit. To guide the center bit (which is only useful until this hole saw bites then it's purely superfluous) I plugged the PF hole with a tapered dowel rod (tapered like a cork so it got tighter with pressure). That gave the centering bit something to bite into and stay centered.
Fr. John