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Everything posted by Mjölnir
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Small to Mid-size 5-axis Milling Machines
Mjölnir replied to Jim at Gentex's topic in Industrial Forum
you haven't been able to find many people with them because there are only three of them on the entire north american continent, two v9's and a v5, as of about three months ago, according to andew, the tech from mitsubishi (millenium) who works on them. that's the last time i saw him. i expect more will be sold exponentially as word gets around, it's a helluva machine. i've been using a v9 since february. i'm not in a position to compare it to anything else in its class as it is the first five axis mill i've ever used. we bought a couple hermle mill turns at the same time too, and i've been trained on them, but have yet to machine anything with them. i do have a suggestion. you must have a good air supply to run the machine. specs are 900 liters/min at 7bar. (32cfm / 102psi) MINIMUM !! if your air supply can't maintain at least that, you're not getting any machining done. we had to add a compressor separate from the shop air system for just my department which consists of the v9 and a roku-roku high speed 3 axis mill. what spindle are you getting? we've got the hsk-50 / 36Krpm. -
2d Contour, Cut Paramters page, Tab key order jacked up
Mjölnir replied to jlw™'s topic in Industrial Forum
there are a lot of parameter pages where the tab key order is illogical. -
Fadal's could do it too.
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if it isn't already, update microsoft .net to the latest version.
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Arc Filter/Tolerance for Surface Finishing
Mjölnir replied to Frank Caudillo's topic in Industrial Forum
i'm using a 30000mm/min (programmable feed rate) 36K rpm machine with a heidenhain itnc530 control and it performs significantly better with linear code than it does with arcs. i don't use arc filtering at all and smoothing is always set to present arcs as line segments with a fixed segment length. so it really depends on the machine, control, and options available, yes?- 25 replies
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OSG Drilling Cast iron at .022" IPT
Mjölnir replied to Rstewart's topic in Machining, Tools, Cutting & Probing
we've been using Mitsubishi tools, solid carbide, indexable, and gun, for our high performance drilling. indeed it makes the sphincter quiver when you first start doing it. one of the first things i did on our first machine with 1000 psi thru tool cooling was 1/2" water lines in high hard (RC 38/40) P20. .720 dia solid carbide drill. 300 sfm. .005 chip load. 7" deep. no spot drill. no pecks. cut the feed in half while crossing each of two intersecting holes. 35 seconds a hole. there were 11 holes which would have taken a full 10 hour shift to do with hss drills. the $350 drill paid for itself on the first job it did. -
then there's Deltronic class X gage pins in .0001" steps...
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create a wcs on the model dynamically then 3d translate the model between named views.
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not being able to use check surfaces is one of the reasons i never use hsm scallop. the other is hsm scallop takes too long to generate. for the gouging in the original post after exhausting all the other suggestions in this thread, try re-creating the surfaces.
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assuming milling it; there may be a more elegant way but i've thought about it for only a minute; what i've got in my mind is threading a bottle or barrel shape; create a spiral using the pitch of the thread with a radius slightly smaller than the min dia of the bottle create a swept surface (like a 0° draft surface) from the spiral that intersects the bottle surfs create splines at the intersection of the spiral and bottle surfs drive the tool using those splines
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that is exactly how i would do it, too.
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a mould builder sees an ejector blade when it's actually a punch. imagine that. assuming the punch his hardened, i'd contour it right to size using light depth cuts having the tool enter and exit the cut. surface contour or hsm waterline to avoid entering and exiting at the same position all the way down. ramping with the tool constantly engaged in the material would generate too much heat i think. use a necked bull nose tool with a small corner radius. you want only the end of the tool, say .05 up to .100 thou from the tip to cut. any more than that is going to want to rub, chatter, and generate heat. edit: now i actually read the first post instead of just looking at the photo. yes, is hardended. millstar backdraft tool, nope, not enough rake on them, they'll rub and chatter. yup, use solid carbide and neck the tool so only the very tip cuts, that should eliminate the chatter.
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wire edm a blade and core pin and silver solder them together. then go slap the designer silly and tell him to use a narrower, off the shelf ejector blade the next time.
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double your shop rate to calculate your savings. the time you were working on the post was time you were not doing something productive. and certainly there's debugging to do also, which chews into productivity, therefore any savings as well.
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it's a link to microsoft onedrive.
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what's "draftsight"? an addon?
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i've seen that before. it points to a DNS issue. have the IT department check for stale DHCP and DNS records and check the configuration of each to assure they're working correctly together.
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what is the average salary of mastercam programmers in usa
Mjölnir replied to robel's topic in Industrial Forum
asking about wages in the usa is a bit of a misnomer. i'm in western new york and could move west to california and easily increase my income by 50%, if not double it. same if i went downstate to around new york city. however, my cost of living at those locations, especially regarding real estate would instantly quadruple if not more. what is a reasonable wage is very largely dependent on where you reside in the usa. you really should be looking at what are the prevalent competitive wages in the area to are going to, or do, reside in. -
contouring a tapered shape
Mjölnir replied to Nastyzen's topic in Machining, Tools, Cutting & Probing
i used the heck out of coons to do multi-surface machining. i went from using acu-carv to mastercam 3.21 after changing jobs and it was like climbing out of a maserati and stepping into a pedal car. -
contouring a tapered shape
Mjölnir replied to Nastyzen's topic in Machining, Tools, Cutting & Probing
for you noobs who never got the pleasure (snerk - lol i snorted) of using early versions of mastercam, that is what using versions 3 & 4 mill level 3 was like. it wasn't until v6 that semi useful surfacing was available. -
contouring a tapered shape
Mjölnir replied to Nastyzen's topic in Machining, Tools, Cutting & Probing
you can do everything except the .1 blend between the top and .3 rad corners with wireframe -> ruled, including the .3 rad corners. assuming ruled is available in level one. the .1 blend between the top and .3 rads is a coons or surface path, but if you can mill the material, you can also file it. -
contouring a tapered shape
Mjölnir replied to Nastyzen's topic in Machining, Tools, Cutting & Probing
2d swept will not work on that part, it would create conical radii on the corners. is wireframe -> coons available in mill level one? that would work, even for the blend radii around the top. -
Windows Explorer left pane shortcuts (Win7) missing
Mjölnir replied to Thad's topic in Industrial Forum
im on my phone at the moment so can't look for the exact location of the command, but what you want to do, Thad, is restore the default libraries. you will not overwrite anything, just the default shortcuts will be restored. edit: http://lmgtfy.com/?q=windows+explorer+restore+default+libraries -
wireframe -> ruled, the flat angle, cutting with the side of the tool. one way climb cutting on pre hardened and hardened materials, zigzag on most others. flowline the radii.
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