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Post by willadams on Nov 18, 2020 12:38:41 GMT -5
I am currently considering purchasing a Mafell FM 1000 WS Milling Motor because I want the quick change feature. My understanding is I will need a step-up transformer --- a VT-4000 Step Up/Down Voltage Transformer, 4000 Watts FROM voltage-converter-transformers was recommended. The other concern is the stock collet is 8mm, but I use mostly 1/8" and 1/4" tooling. There is a collet for the former, but for the latter the 6mm collet is supposed to work: katalog.mafell.com/index.php?IdTreeGroup=13380&IdProduct=34438notes: >(ground) 6 mm (1/4 in.) are there any issues with doing that? and I'll probably ultimately get the ER-16 Collet Chuck Adapter (unless there's a specific reason not to) Probably going to buy from Timberwolf Tools unless there's a better recommendation. I'll also need to make an adapter plate, but that looks pretty straight-forward based on the drawing in the manual.
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Post by alvychippy on Nov 23, 2020 16:23:21 GMT -5
6mm and 1/4" collets and cutters don't work well in-between mixed up.
As it comes to the fm1100 as a motor for CNC doesn't make sense to me, as it is decent power, but small fitting base, still about 1/2 or 1/3 of commonly used CNC machines...
On average new minimal CNC set up is $6k+ skipping on appropriate size/power motor, making adaptation doesn't make financial sense either.
That's my $0.02ct on your quible
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Post by huntsgemein on Nov 23, 2020 19:50:21 GMT -5
1/4" is actually & accurately 6.35mm. You'll be forcing these bit into the collet, which it won't like. As you're undoubtedly aware high speed collets are precision machined to accurately & safely hold shanks of a specific size.
If forced, it will get stuck in there & won't come out readily without gross force being applied: i.e hammer & drift to the bit wings, blunt cold chisel etc. Don't do this!
I also don't like collet sleeves either. They invariably add yet another layer of potential slippage to an already insecure grip. The only instance that I've had of a router bit coming out in operation was when using sleeved bits. Again, don't!
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Post by willadams on Nov 30, 2020 13:43:59 GMT -5
This is a small CNC which usually uses a DeWalt DWP611/D26200 or Makita RT0701/0700 so the Mafell is quite the upgrade. Any idea why the link: katalog.mafell.com/index.php?IdTreeGroup=13380&IdProduct=34438conflates 6mm and 1/4"? My assumption was that this was a collet system like to ER-style collets which have a wide (typically 1mm) clamping range. I'm aware of the 0.35mm difference --- but I have a lot of 1/4" tooling, and it's going to be a budgetary problem to replace it all w/ 6mm. If that collet won't work on 1/4" as Mafell indicates where can I source a 1/4" collet for this unit? Agree that collet sleeves are a bad idea --- the link above is an example of the collet system which Mafell recommends --- I'll also be getting the 1/8" collet, and will also be using 8mm (5/16") tooling of which I have a few endmills. Worst case is I'll just use 1/8" and 8mm tooling, but I'd really like a way to make use of 1/4" tooling.
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Post by alvychippy on Dec 9, 2020 8:25:44 GMT -5
T conflates 6mm and 1/4"? My assumption was that this was a collet system like to ER-style collets which have a wide (typically 1mm) clamping range. I'm aware of the 0.35mm difference --- but I have a lot of 1/4" tooling, and it's going to be a budgetary problem to replace it all w/ 6mm.. Looks like double ended (like 3 dimensional) application- design collet, hence 0.35 difference can be taken of a list of concerns
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Post by willadams on Mar 9, 2021 23:47:14 GMT -5
Okay, the 6mm reducing adapter really is 6mm and does not have the play to fit 1/4" (6.35mm) --- considered using an Amana RB-106 8mm--1/4" reducing bushing, but fortunately a friend is making a reducing adapter as like to the Mafell units as I could measure. In the meanwhile I've made a mounting plate: community.carbide3d.com/t/mafell-spindle-with-manual-tool-change-fm-1000-pv-ws/22023/26though I'm wondering if ~6.35mm is thick enough and if I should instead go for 12.7mm. Next up is working up a dust collection solution.
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