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Post by bicycleclip on Nov 20, 2017 5:59:05 GMT -5
Has anyone actually used the Mafell NFU32? The advantages over the MF26 I can see is that
1) It cuts 6mm deeper (32mm as opposed to the MF26s 26mm)
2) It cuts 1.5mm wider (26.5mm as opposed to MF26s 25mm)
3) Its motor runs at 1600W as opposed to MF26s 1400W)
4) It bevels, though I can't for the life of me think of a use for a bevelled dado/groove.
On the other hand it looks like an old design that has been overshadowed by the MF26. It requires proprietary rails (as opposed to the standard Mafell ones that the MF26 uses) and it has only one cutter option (no saw blades, v cutters, 3 blade cutters etc.).
Is there anyone who prefers the NFU32 over the MF26 for any reason other than nostalgia? Answers on a postcard please..
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Post by Tom Gensmer on Nov 20, 2017 8:08:56 GMT -5
My understanding is that the NFU 32 is optimized for cutting notches and grooves in solid timbers, whereas the MF 26 is more of a multipurpose machine.
As you point out, with the NFU 32 you gain capacity and ability to bevel at the cost of the other cutting heads.
With the MF-26 you lose depth and width capacity (relative to the NFU 32) and you don't get the bevel function, but you get additional cutter heads, as well as compatibility with the crosscutting track as well as the regular F-tracks.
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Post by bicycleclip on Nov 20, 2017 18:33:41 GMT -5
My understanding is that the NFU 32 is optimized for cutting notches and grooves in solid timbers, whereas the MF 26 is more of a multipurpose machine. As you point out, with the NFU 32 you gain capacity and ability to bevel at the cost of the other cutting heads. With the MF-26 you lose depth and width capacity (relative to the NFU 32) and you don't get the bevel function, but you get additional cutter heads, as well as compatibility with the crosscutting track as well as the regular F-tracks. Interesting. I notice that the NFU takes a 30mm arbor cutting head, which is the same size as most spindle moulder heads. I wonder if that means that you can use other makers spindle moulder heads and thus makes it more of a carpenters machine? E.g. www.thesawcentre.co.uk/industrial-tooling-sawblades-c682/spindle-tooling-c654/grooving-c674/trend-trend-5mm-groove-cutter-w-scorer-150mm-x-5mm-x-30mm-it-7210051-p6630The MF26 uses a 20mm arbor which I think is less common, so perhaps there’s more lock-in to Mafell’s cutting heads. |
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Post by huntsgemein on Nov 20, 2017 18:57:33 GMT -5
Cutting beveled birdsmouth notches in a clamped series of rafters would be a specialised but extremely labour-saving use.
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Post by bicycleclip on Nov 21, 2017 2:58:43 GMT -5
I found a copy of the instructions for the NFU 32... www.groheshop.com/content/infobox.ashx?fileid=01500000002H0K
Section 7 (page 14)Use according to intended purpose The MAFELL groove-cutting machine NFU 32 is intended exclusively for cutting wood. The dimension of the tools used must correspond to the measurements mentioned in this operating manual. - Diameter of cutter: max. 125 mm (4 15/16 in.) - Width of cutter: max. 30 mm (1 3/16 in.) - Only use cutters suitable for manual feeding ..this indicates that it's compatible it with any timber cutter head that has a standard 30mm bore, and is no bigger than 125mm diameter, 30mm wide. That makes it pretty versatile in my book. I haven't managed to find an instruction booklet for the MF26, but right from the start having a 20mm bore is going to limit ones choices. I don't know enough about timberframe, but I thought for birdsmouths I'd be looking at a ZK 115? |
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Post by bicycleclip on Nov 21, 2017 5:17:52 GMT -5
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Post by bicycleclip on Nov 25, 2017 8:22:52 GMT -5
Did anyone find a supply of narrow i.e. 1/2” and 1/4” cutter heads for the MF26?
It seems that the MF26 could offer the best of all worlds, particularly for Euro persons like me who can’t/won’t use dado stacks. But I can’t commit to using 3/4” sheet material for all my jobs, when I might want to use thinner.
I can easily find narrow cutters for the NFU 32, but I’d like to use the standard and infinitely versatile Mafell tracks which the MF26 allows, rather than the special NFU 32 only track which costs £500 and is just 1m long.
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Post by Tom Gensmer on Nov 25, 2017 9:28:55 GMT -5
You can try reaching out to Silkworm Industrial. I recently hired them to mill down standard 1-1/8" hex demolition hammer accessories (a Diamond Pier pin driver and a tamping shank) down to the HILTI TE-S size, and we discussed having him mill up custom heads for the MF-26cc. The existing expanding groove cutter is limited by the width of the carbide cutters, so to get a more narrow cutter head I'd have Silkworm machine more narrow heads that utilize more narrow replaceable, commercially available "off the shelf" carbide cutters. Silkworm would need the MF-26cc expanding cutter in their shop so they can match the shape, size, geometry, etc...., and the first copy would likely be rather expensive due to the initial setup costs. That being said, if we can put together a group of interested buyers we can probably drive down the per-unit cost. silkwormindustrial.com |
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Post by rizzoa13 on Nov 25, 2017 16:00:18 GMT -5
Tom count me in. I’d love a smaller expanding groove cutter for it.
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Post by Tom Gensmer on Nov 25, 2017 21:40:30 GMT -5
Tom count me in. I’d love a smaller expanding groove cutter for it. I'd have to chat with Silkworm about what they feel most confident about building, fixed-size cutters or a more narrow expanding model. I'll reach out to my contact there this week to get his opinions. |
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Post by bicycleclip on Nov 26, 2017 4:06:43 GMT -5
Tom count me in. I’d love a smaller expanding groove cutter for it. I'd have to chat with Silkworm about what they feel most confident about building, fixed-size cutters or a more narrow expanding model. I'll reach out to my contact there this week to get his opinions. That would be great. I’m going to ask Leitz UK about 20mm bore cutters as well. I’m standing on the edge of the swimming pool regarding the MF26, but if I knew I could get at least a 1/2” cutter for it I would probably dive straight in. |
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Post by holmz on Nov 26, 2017 7:13:27 GMT -5
Interested too...
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jimh
Junior Member
Posts: 74 
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Post by jimh on Nov 28, 2017 17:26:09 GMT -5
I'd have to chat with Silkworm about what they feel most confident about building, fixed-size cutters or a more narrow expanding model. I'll reach out to my contact there this week to get his opinions. That would be great. I’m going to ask Leitz UK about 20mm bore cutters as well. I’m standing on the edge of the swimming pool regarding the MF26, but if I knew I could get at least a 1/2” cutter for it I would probably dive straight in. Count me almost in. I am all but ready to jump off the fence and buy an MF26. |
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Post by rizzoa13 on Nov 28, 2017 20:02:50 GMT -5
I got mine last week and have used it more than any other saw this week. The dust extraction is literally perfect. I got sthe 90 degree drywall/wood folding blade, expanding groove cutter and slotting head. That things such a badass tool.
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Post by arvid on Nov 28, 2017 20:42:51 GMT -5
I got mine last week and have used it more than any other saw this week. The dust extraction is literally perfect. I got sthe 90 degree drywall/wood folding blade, expanding groove cutter and slotting head. That things such a badass tool. can you describe specifically what projects you are using this for? |
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