Primitive Archer

Main Discussion Area => Bows => Topic started by: Ryan Jacob on March 25, 2020, 11:33:51 am

Title: Unclogging shinto rasps
Post by: Ryan Jacob on March 25, 2020, 11:33:51 am
I bought a shinto rasp since I like how aggressively they remove wood but they’re kind of a pain to clean with a barbecue stick. How would you guys clean one?
Title: Re: Unclogging shinto rasps
Post by: Strichev on March 25, 2020, 11:47:14 am
I use a brass brush to clean my files and rasps. I've heard that people prefer non-metal brushes for fear of dulling the rasps. Suppopsedly using some oil on the rasp and then brushing it can help. I've also read that people rinse it with water.
Title: Re: Unclogging shinto rasps
Post by: The Zen Master on March 25, 2020, 11:49:24 am
Would a file card work?
Title: Re: Unclogging shinto rasps
Post by: PEARL DRUMS on March 25, 2020, 11:50:15 am
They rarely plug up when the wood is dry.   
Title: Re: Unclogging shinto rasps
Post by: Eric Krewson on March 25, 2020, 12:11:00 pm
I have always used a cheap brass BBQ brush from the dollar store to clean my files and rasps, I cut most of the handle off. Brass is soft and won't dull your equipment. I have a file card but the bristles are steel and I am hesitant to use it although I used it for years before I changed to the brass brush I use now.
Title: Re: Unclogging shinto rasps
Post by: DC on March 25, 2020, 02:34:43 pm
I use my air compressor. I was going to say that some woods clog worse than others. I find yew is bad. But now that PD says damp wood is worse I'm not sure. Maybe my yew was damp. Don't think so though. How about going across the bow instead of lengthwise? I know I've had mine clog, I'm just trying to think what I was doing at the time. I would do some tests but I'm in the middle of heat treating.
Title: Re: Unclogging shinto rasps
Post by: Rākau on March 26, 2020, 01:05:43 am
I do a heap of work with a shinto  and I find that whether it clogs or not is sensitive to how it is held. If I really bear down on the blades by putting my index finger on top to increase leverage it tends to clog. However, if I only hold the handle and concentrate pressure on the trailing edge of the blades it cuts far more efficiently and seems to not clog up. let the blades do the work.
Title: Re: Unclogging shinto rasps
Post by: Ryan Jacob on March 26, 2020, 01:46:03 am
Damp wood does seem to clog worse... maybe I should use a different rasp for roughing out staves. I’m not confident enough to use an axe yet, have trouble following lines.
Title: Re: Unclogging shinto rasps
Post by: Del the cat on March 26, 2020, 02:52:57 am
On the fine side of an old cabinet rasp which I was struggling to clean... in desperation I gave it a quick waft over a hot flame from a propane torch. It scorched the wood which then brushed out nicely. :)
Obviously don't want it hot enough to effect the steel tho'
Del
Title: Re: Unclogging shinto rasps
Post by: High-Desert on March 26, 2020, 08:27:01 am
They make a wire bristle brush designed to clean files, the have a 45 degree bend in the wires. They work great, 2-3 swipes across you file and it’s clean.
Title: Re: Unclogging shinto rasps
Post by: DC on March 26, 2020, 08:44:52 am
They work great for files but a Shinto rasp will grab and hold those wires.
Title: Re: Unclogging shinto rasps
Post by: Hawkdancer on March 26, 2020, 11:46:39 am
Haven't try compressed air, but with the wire brush, I try to work from the handle to the tip.  Dry wood and moderate pressure on the rasp should help slow the clogging.
Hawkdancer
Title: Re: Unclogging shinto rasps
Post by: DC on March 28, 2020, 01:04:29 pm
Just did a little work with my Shinto. I found that if I file with(along) the grain it clogs up. Across the grain doesn't. Kinda makes sense. Working along the bow would cut off long shavings which would tangle and clog. Across would make shorter shavings which could fall free. I was working with heat treated Black Locust.