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Type: Posts; User: mhajicek
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12-07-2019, 02:45 PM
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I picked up one of these about a year ago:...
I picked up one of these about a year ago:
https://www.mscdirect.com/product/details/00919522?rItem=00919522
It's serving me well cutting 17-4 H900 and Ti6Al4V. The 1" blade lasts a lot longer... -
12-06-2019, 12:04 PM
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I have two parts in an assembly with this...
I have two parts in an assembly with this situation. Part "A" has a deep drilled bore with a step smaller at the bottom, likely to be drilled from the other end. Part "B" is a stepped shaft that...
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12-04-2019, 04:42 PM
Thread: X vs Y cut finish
by mhajicek- Replies
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First thing I'd check is the thrust bearings.
First thing I'd check is the thrust bearings.
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12-04-2019, 01:56 PM
Thread: Run 30 parts then stop?
by mhajicek- Replies
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mdi #500 = 0
mdi #500 = 0
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12-03-2019, 12:36 PM
Thread: Small dovetail vise for 4th axis
by mhajicek- Replies
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This is what I do. No stock prep for aluminum or...
This is what I do. No stock prep for aluminum or plastic, cut a 60° dovetail for titanium or pre-hard steel. Quick swaps on center between the vise and collet fixtures.
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11-27-2019, 01:16 PM
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I run 1000PSI TSC through the collet while...
I run 1000PSI TSC through the collet while cutting so it stays clean. I blow it out a bit and give it a spin by hand between tools.
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11-26-2019, 06:37 PM
Thread: Need ideas to fix a part
by mhajicek- Replies
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Try one of these: 271144
Try one of these:
271144 -
11-26-2019, 01:52 PM
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I have a few DNA-11's for 1/8" shank tools. They...
I have a few DNA-11's for 1/8" shank tools. They work pretty well. I don't remove the collet from the nut.
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11-25-2019, 04:13 PM
Thread: Hello is anyone online who might
by mhajicek- Replies
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Not if you don't tell them what it is. Usually...
Not if you don't tell them what it is. Usually people post an actual problem or question, with a descriptive subject line.
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11-22-2019, 05:03 PM
Thread: Pushing your Speedio
by mhajicek- Replies
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My thinking is it's a Yamaha R6, (or R1 with dual...
My thinking is it's a Yamaha R6, (or R1 with dual contact), not an F-350. It's a lot faster and it corners real nice, but if you're moving sacks of concrete take the truck.
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11-22-2019, 04:05 PM
Thread: Tool-X coolant?
by mhajicek- Replies
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I'm using Hangsterfers S787D in Ti with good...
I'm using Hangsterfers S787D in Ti with good results. Never gets stinky.
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11-22-2019, 02:43 PM
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Digitals are the easiest to read. Also the...
Digitals are the easiest to read. Also the easiest to mis-read when you don't notice it's zeroed wrong or that it skipped a bit due to coolant. I find I get the best readings from dials, until...
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11-22-2019, 10:49 AM
Thread: Emco Super 11 Lathe / Mill
by mhajicek- Replies
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It's like an F-35. Trying to do too many things...
It's like an F-35. Trying to do too many things at once, no good at any of it.
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11-21-2019, 08:41 PM
Thread: New to machining aerospace
by mhajicek- Replies
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H11 IS a tolerance. Your scenario was throw a...
H11 IS a tolerance. Your scenario was throw a part at a guy and ask him to make it without a print, and you ridiculed the concept that they had the gall to ask for a print. Yeah, if you bring in a...
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11-21-2019, 07:47 PM
Thread: New to machining aerospace
by mhajicek- Replies
- 126
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If you hand me a part and ask if I can make it I...
If you hand me a part and ask if I can make it I will ask for a fully dimensioned and toleranced print (or a model that includes tolerances on every dimension) before giving an answer. If you don't...
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11-21-2019, 06:37 PM
Thread: Emco Super 11 Lathe / Mill
by mhajicek- Replies
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What do you want to do with it? I've never seen...
What do you want to do with it? I've never seen anyone happy with a lathe/mill combo.
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11-21-2019, 06:00 PM
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Load monitoring can be your friend.
Load monitoring can be your friend.
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11-21-2019, 05:18 PM
Thread: Tool Holders
by mhajicek- Replies
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Got a lot of Maritool holders here, ER-11, ER-16,...
Got a lot of Maritool holders here, ER-11, ER-16, ER-32, and a couple endmill holders. Coolant thru studs in all. Can't find a fault with them. I've also got their induction machine, which is...
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11-21-2019, 05:13 PM
Thread: Copy mill surface finish
by mhajicek- Replies
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That's a hobby machine, and as such is against...
That's a hobby machine, and as such is against the rules to discuss here. That said, either use a flycutter or take multiple passes with a much smaller solid carbide cutter.
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11-21-2019, 05:08 PM
Thread: 5 Flute Face Mill Speeds and Feeds
by mhajicek- Replies
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A 3" indexable is probably too big to run on a...
A 3" indexable is probably too big to run on a VF-2 in 4140 prehard with good results unless it's a shallow finish pass. You have a Yamaha R-6, not a Ford F-350. I'd use a smaller solid carbide...
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11-21-2019, 05:01 PM
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Send me the machine and I'll make money with it....
Send me the machine and I'll make money with it. :)
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11-21-2019, 04:58 PM
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Better rigidity is always better, all else being...
Better rigidity is always better, all else being equal. It also tends to be more expensive. Is it worth paying for, for your parts in your shop? That's up to you. It can also have some...
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11-21-2019, 03:48 PM
Thread: Haas spindle rpm
by mhajicek- Replies
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I run 15K for hours on end in Titanium for...
I run 15K for hours on end in Titanium for finishing small surface details with a 1/32" ball. I'm getting a quote for a Toodle so I can run it faster.
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11-20-2019, 05:34 PM
Thread: Is UMC-750 that bad?
by mhajicek- Replies
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- 2,850
I just did that a couple weeks ago on a VMC with...
I just did that a couple weeks ago on a VMC with trunnion to make a fixture mounting plate, but with a much finer stepover. It ensures that a circle at any given radius on the machined surface will...
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11-20-2019, 01:27 PM
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Okay, here's your helpful answer. It's a bad...
Okay, here's your helpful answer. It's a bad idea, and you could have had the right stuff delivered by now if you had ordered it when asking your question. Some people spend a lot of time and...
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