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  • MattiJ's Avatar
    Today, 09:29 AM
    Seem like Manganese is not considered that much risk even for more professional welders so I wouldn't lose my sleep over occasional welding. Nickel...
    5 replies | 215 view(s)
  • MattiJ's Avatar
    09-21-2019, 06:04 PM
    There is definite difference in traffic between weekdays and weekends too. 8 oclock rush hour sucks in a way but it is pretty well predictable....
    102 replies | 3103 view(s)
  • MattiJ's Avatar
    09-21-2019, 04:39 PM
    Some companies cut AR400 plate with guillotine shears so even a pretty hard material goes if its not too thick. (1/4" for AR400 for some examples...
    41 replies | 1645 view(s)
  • MattiJ's Avatar
    09-21-2019, 07:08 AM
    Can't really argue with that as I have all of those tools already ;) Add this to your must-have list:...
    10 replies | 546 view(s)
  • MattiJ's Avatar
    09-20-2019, 03:48 AM
    MattiJ replied to a thread What are these used for ? in General
    Those are grayscale stop signs.
    14 replies | 889 view(s)
  • MattiJ's Avatar
    09-20-2019, 12:36 AM
    Well stocked small grocery shop within walking distance (about a mile or so). Conviniently small to pop in on the way to work at morning to buy one...
    102 replies | 3103 view(s)
  • MattiJ's Avatar
    09-19-2019, 11:37 AM
    MattiJ replied to a thread OT; Epson printer scam in General
    Mentioned Canon also has separate waste reservoir and its easy enough to empty. Different sort of beast compared to "home" lasers but well worth...
    21 replies | 1328 view(s)
  • MattiJ's Avatar
    09-19-2019, 12:33 AM
    MattiJ replied to a thread OT; Epson printer scam in General
    Lasers are not that different, waste toner compartment is pretty large. But usually its build in the toner catridge itself and unless you take one...
    21 replies | 1328 view(s)
  • MattiJ's Avatar
    09-18-2019, 01:53 AM
    MattiJ replied to a thread 3D metal printing in General
    100% Agree :D He has ze(the) ultimate home shop.
    5 replies | 339 view(s)
  • MattiJ's Avatar
    09-17-2019, 01:23 PM
    MattiJ replied to a thread 1018 Or 1144 ?? in General
    In here they advertise heavily on Ovako M-steels with limited amount of inclusions. They claim anything from 30% to 500% increase in cutter life...
    47 replies | 1760 view(s)
  • MattiJ's Avatar
    09-17-2019, 09:57 AM
    MattiJ replied to a thread 1018 Or 1144 ?? in General
    You don't need to go that far from home... ever heard of Sapa Profiles Inc (Oregon) and NASA? Or Kobe steel Japan? Or if we widen the span: Takata...
    47 replies | 1760 view(s)
  • MattiJ's Avatar
    09-17-2019, 06:12 AM
    Article works fine also here but inches and sfm are not much use :rolleyes: What I use for HSS is 1000rpm for 10mm and scale inversely from that....
    16 replies | 817 view(s)
  • MattiJ's Avatar
    09-16-2019, 11:46 PM
    MattiJ replied to a thread 1018 Or 1144 ?? in General
    Copper is enriched in steel every time it is recycled, they have to dilute the recycled steel with virgin ore because of that. ...
    47 replies | 1760 view(s)
  • MattiJ's Avatar
    09-16-2019, 02:54 PM
    MattiJ replied to a thread Small motor connection in General
    Not only common, pretty much standard. I was pretty confused that WTF you guys are talking about screws+nuts+heatshrink or electrical tape! as all I...
    26 replies | 986 view(s)
  • MattiJ's Avatar
    09-16-2019, 06:17 AM
    MattiJ replied to a thread What did you machine today? in General
    I can control the pulse width by arduino and/or by charge voltage. I wrote the dual pulse functionality also to my software in hopes to ”seat” the...
    1570 replies | 535749 view(s)
  • MattiJ's Avatar
    09-16-2019, 05:56 AM
    MattiJ replied to a thread Small motor connection in General
    Terminal block... sorry you were in US.
    26 replies | 986 view(s)
  • MattiJ's Avatar
    09-16-2019, 03:30 AM
    1055 shouldnt be too difficult to machine unless you got hardened piece by some miracle! 1045 and 1060 are my favourites if I need cheap somewhat...
    16 replies | 817 view(s)
  • MattiJ's Avatar
    09-16-2019, 02:57 AM
    Damn, in here they are digging distribution cables underground even in 500 people ”town” because heavy snow causes blackouts once in two years....
    134 replies | 7993 view(s)
  • MattiJ's Avatar
    09-15-2019, 02:44 PM
    MattiJ replied to a thread What did you machine today? in General
    Powered by large electrolytic capacitor bank charged with adjustable DC (lab) power supply. 12x 68mF 35v caps in parallel, controlled with beefy...
    1570 replies | 535749 view(s)
  • MattiJ's Avatar
    09-15-2019, 02:08 PM
    MattiJ replied to a thread What did you machine today? in General
    Actually machined instead of just fooling around and making a mess. Spring loaded hand-held spot welding electrode "holder" for spot welding battery...
    1570 replies | 535749 view(s)
  • MattiJ's Avatar
    09-15-2019, 01:41 PM
    MattiJ replied to a thread 1018 Or 1144 ?? in General
    Specifications don't say anything exact about machinability and that can be affected by type of mill scale, inclusions and type of the inclusions and...
    47 replies | 1760 view(s)
  • MattiJ's Avatar
    09-13-2019, 08:33 AM
    Unfortunately, our website is currently unavailable in most European countries. We are engaged on the issue and committed to looking at options that...
    26 replies | 1742 view(s)
  • MattiJ's Avatar
    09-13-2019, 02:26 AM
    Yes, it works and its my preferred method even if its not a blind hole. I prefer TIG torch for heating, no need to use filler, just melt a...
    18 replies | 1056 view(s)
  • MattiJ's Avatar
    09-11-2019, 04:10 PM
    MattiJ replied to a thread Where's Jerry? in General
    IIRC someone here or on PM said that he was in contact with Forrest and he had lost/forgotten all his online passwords or something like that?
    31 replies | 2332 view(s)
  • MattiJ's Avatar
    09-11-2019, 02:02 PM
    MattiJ replied to a thread Where's Jerry? in General
    JTiers was bit too predictable but good guy in my books anyways. I miss Forrest Addy. Never on a cranky mood, good stories and plenty of actual...
    31 replies | 2332 view(s)
  • MattiJ's Avatar
    09-11-2019, 07:06 AM
    MattiJ replied to a thread What did you do today? in General
    Even better after you magnetize the lathe bed and mill table so that the swarf sticks and stands pointy end up..
    4517 replies | 1571485 view(s)
  • MattiJ's Avatar
    09-11-2019, 05:53 AM
    MattiJ replied to a thread Help needed in General
    Rich Carlstedt gave already good description of the job. I'd add that clean, clean and clean all the mating surfaces from chips and burrs. And make...
    15 replies | 818 view(s)
  • MattiJ's Avatar
    09-11-2019, 02:34 AM
    MattiJ replied to a thread Least used machines in General
    I'm limited in both space and budget and don't own that many unused tools. Materials, projects and parts would be different matter, some of them...
    42 replies | 2599 view(s)
  • MattiJ's Avatar
    09-10-2019, 05:09 PM
    :D
    9 replies | 627 view(s)
  • MattiJ's Avatar
    09-10-2019, 04:01 PM
    It is here already: https://www.core77.com/posts/25865/A-Self-Stabilizing-Spoon-for-Hand-Tremors Also self-leveling spoon if your wrist/hand...
    8 replies | 534 view(s)
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About MattiJ
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Helsinki, Finland, Europe

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