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Robert Bell

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Posts posted by Robert Bell

  1. I have a customer who would like me to machine pockets between bolt holes in a 18mm wide Linear Bearing Rail to lighten it. eek.gif

    I'm not sure if these are case or thru hardened.

    I am assuming something like .18 depth and maybe 3/8 wide pocket.

    Anyone done any machining on these before? I have done very little hard metal machining in cnc.

    Running HAAS, 7500 RPM

     

    I understand rail is likely to move a little, not a big issue in this application.

     

    Any information would be appreciated,

    Thanks RB

  2. If I am not mistaken the only way to accomplish this would be to Transform - Offset Contour the desired stepover.

    Chain the offset contour first then desired contour when chaining toolpath. Using no multi pass and "by contour" in depth cuts.

     

    "By contour" will cut the first chain to full depth then go to the next chain.

     

    If by depth is selected in depth cuts it will cut as you are already getting using multi pass, each chain will be cut in order but one depth cut at a time.

     

    Select a new layer before creating offset geometry and it can be blanked in level manager to get it out of the way after used.

     

    HTH

    Have a good weekend

  3. I believe "by contour" will refer to more than one contour being machined.

     

    You can accomplish what (I think) you are looking for by unchecking Multi Pass and leaving stock in X, Y, and use two operations to get to final contour.

     

    HTH

  4. I checked that out first and none of the 17000 series numbers in table are close to what i saw in my post. I then (after posting ?) checked my old machine and it was doing the same thing. I feel like an idiot now but still am curious as to why this is happening. I noticed max depth var in paramaters is set to .005 same as my cut depth but it is also blanked out-unable to change. I dont think thats it.

     

    Thanks for the reply, you have definitely helped me a lot learning MC

  5. Just installed X3 MU1. Was using MR2 SP1 on older comp, bought new laptop to start using X3.

    Imported MMD files, solved a few issues.

    I now have a Z axis feed rate posting by itself on a line with no movement.

     

     

    G0 Z.06

    X.5924 Y-.7454

    Z-.257

    G1 Z-.282 F3.5

    X.6019 Y-.7831 F9.

    F3.5

    X.6366 Y-.9215 F9.

    X.5194 Y-.8401

    F3.5

    X.4875 Y-.8179 F9.

    G0 Z.06

     

    I have searched and searched for this and came up empty. I know its has to be simple, just cant find it.

     

    No high low feed issues, any help would be greatly appreciated

     

    Haas 4x mill post

     

    Thanks in advance

  6. Not sure if I should have started this or posted in another comp thread. I would appreciate opinion on this model using for MC.

    I am using a hp 512 laptop with 1gig ram upgrade, it has 32 meg video soldered in. been using it for just over a year this way and have been very happy but it is definitely slow.

    Using MC X2 MR2 SP1

    X3 in box till I find something else.

     

    Looking at this, sale tomorrow 599.00 staples

     

    Processor AMD Turion X2 RM-74 Dual-Core Mobile Processor

    Memory (RAM) 4GB

    Memory Type DDR2

    Memory Expandable to 8GB

    Hard Drive Size 320GB

    Hard Drive Type SATA

    Optical Drive SuperMulti 8X DVDñR/RW with Double Layer Support

    Display Size 17.0"

    Display Type WXGA+ High-Definition HP BrightView

    Operating System Microsoft Windows Vista Home Premium 64-bit with Service Pack 1

    Battery Type 8-Cell Lithium-Ion battery

    Network Card 802.11b/g WLAN

    Video Graphics ATI Radeon HD 3200 Graphics RS780M

    Other ports 5-in-1 integrated Digital Media Reader

     

     

    Thanks, you have all been a great help to me while learning MC over the past 14 months

  7. You can right click in operations mgr window, look for edit option, I think you will be looking for "change at point". You have the ability to change feed rates and rpm etc at any point on toolpath. Can't be more specific, my hasp is at work. Been a while since I used that option.

    HTH

  8. Would anyone be willing to mail me the zip containing the above referenced post ref guide, I have been able to make a few simple changes here and there (with help from my reseller). What I know about these codes you could write on the head of a pin with a wide tip marker, I would like to learn more.

    I have tried many times to get to ftp site,followed directions etc, to no avail.

     

    Thanks RB

    [email protected]

  9. Dead Money, I would be a newbie here but I am going to throw my 2c in anyway. This forum is a wonderful source and I have learned a lot in a short time reading here. Welcome

    Setup Time: sound like you may have a lot of smaller issues not necessarily one big one and you are not going to have time to stand around figuring out what they are, you need feedback. try getting floor personnel to take notes on what they believe held up any given setup. take a glance every night and you may be surprised to find half the crew looking for the same thing 20 min a day or fighting the same type of problem each day.Pick your battles and fix as you go. In some shops 12 ratchets and sockets will save many hours in a month (simple example but true). Do something good with the input and you will begin to get more of it in better quality from your people.

     

    I believe the earlier comments on seat time are absolutely true, takes time and it is worth it.

     

    You will find operations libraries will save a lot of time on similar parts.

     

    A standard set of roughing and finishing tools for each machine could help save you a lot in the long run as a programmer. Like someone stated earlier, find what works for you in each material and be consistent using them, you've already seen them work and know what to watch for, every success builds more confidence, with that comes speed.

     

    A simple man makes a complex part by planning ahead and taking many simple steps one at a time.

     

    I hope you can get something good from this as I just put most of the guys that will be helping you to sleep!!!

     

    Best of luck and never be afraid to ask...

  10. 3/4 Dia. YG-1 Speed Freak 3 flute T-15 Powder Coated HS .06 Corner Rad. .005 -.007 per tooth.

    My machine is 7500 rpm and I run 6000 @ 75 IPM .4 stepover .5 deep contouring. A little less depth for pocket maybe. I get great life contouring, bit less pocketing.

    book says 10k rpm @ 200 IPM

     

    I finish with solid carb

     

    Hope this helps

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