jwvt88

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About jwvt88

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  1. jwvt88

    FBM / FBD

    Hey guys, running Mastercam 2018 and attempting to setup FBD/FBM. I'm very new to Mastercam(~2 months), but I'm coming from softwares(Tebis, PowerMill, WorkNC, Gibbs) where I was able to implement a lot more automation than my new shop is doing(we don't even have standardized tooling here on most machines yet..) I'm having a few issues. 1) Taps - I went through my "FbmToolTable" and added tap drill diameters commonly used for the specified taps(generally how our model comes in). I can get FBD to work great by setting up the control definition properly and leaving the screen on "Features". Then when programming just right click > Hole Type > Tap RH then going through and assigning the proper finish tool if necessary. Problem is I would like to automate this more by utilizing the "Hole Mapping". For example we have many different customers and some of them might not use the same diameters as others. It seems I could setup MAP files for individual customers needs and speed up programming further. However many of my taps don't appear in Hole Mapping. Example: I right click, add, type .201 diameter, Tap RH, and my 1/4-20 tap does not show up as a possible finish tool. However my 1/2-13 tap does show up for my .421 diameter(I remember having this issue with the .421 before but don't remember how I resolved it, could be just because I started a new mastercam session and created a new blank plate to test?) Again, my "FbmToolTable" does have these set properly as far as I can tell. 2) Reams - Reams all look proper on "FbmToolTable" - under "tap drill required size" it has proper ream drill diameters. I didn't have to adjust those at all. In the future I would like to add options for -.001 press fit and on size slip fit. However when I am in FBM Toolpaths - Drill, all of my pilot holes listed are wrong. I've now spent hours going through the settings on here but I don't know where I'm wrong. For .125 reamer it wants to pilot .125. For .1875 it wants to pilot .125. For .3125 it wants to pilot .25. For .5 it wants to pilot .4375. for .75 it wants to pilot .625. I feel like it might have something to do with bore settings since it tries to ream as "Bore #1". But I can't be sure of this. I'm also wondering if it is possible to set this up as a Ream with a standard "Drill" function so it will rapid out? Or will I need to manually adjust that every time.
  2. jwvt88

    Hollow stock model, STL, imported mesh

    Sorry for the delayed response, I had reached my max posts per day of 3. Yes for some reason(I forget the reason) they want me to use TOP WCS for every OP instead of using the planes. My first couple of days here they just had me playing with the software and I was using the planes how you describe and I was told "no, no, no" Planes need to read "top, top, top" unless 3+2(I haven't gotten to multiaxis yet) I was eventually able to resolve my issue. The first few Ops I wasn't having any issues then I tried exporting the STL from the simulation(per instruction) and started having the issue. When I went back to exporting the stl from mastercam stock model, it started working appropriately. I think some of my tolerances in the simulation might be wrong because he doesn't have this issue.
  3. jwvt88

    Stock Models

    Is there a video of this available?
  4. jwvt88

    Hollow stock model, STL, imported mesh

    Yeah that's not my problem at all. I am familiar with creating a stock model. We are machining very complex thin aluminum parts with very thin windows. For example: Op 1: setup, square and machine a slot down the middle for spring Op 2: flip it over, rough out stock and finish inside pocket where possible. Op 3: flip it back over, finish inside pocket first from this side, and then finish ouside 3d possible from this side. Add in holes and taps for next op. Op 4: Flip back over and 3d finish the outside here on a custom nest fixture I also need to create. My issue is going from one Op to the next op, keep flipping the job over and using the same stock reference. We machine one off parts to parts in the tens of thousands for a decade long but always need to be as efficient as possible.
  5. jwvt88

    Hollow stock model, STL, imported mesh

    I'm currently having this problem too using 2018. I just started at this company(and mastercam) 6 weeks ago. I have a lot of experience with primarily with PowerMill and Tebis, but a little WorkNC and Gibbs and some of these simple issues are extremely frustrating. The guy training me has never seen or had this issue before so it is making me look even worse. His method is always the same. Save the STL from the simulation, open the STL separately and orient it accordingly, resave it and use it in stock setup and in stock model. Says he has never had this issue in all of his years. That method worked for me for the first few OPs. But now 160 programs deep on the 4th OP I am struggling with this. I have tried your suggestion as right click > mill toolpath > convert to pmesh. moved the pmesh to a separate layer. But I cant select the Pmesh as stock in stock setup(for simulation). I tried File>save some then selecting it and saving as STL. Same hollow issue in simulation. I select the Pmesh as a "model" in the stock model and combined with the calculation time taking forever for just a few toolpaths it still comes in hollow(which doesn't even make sense to me). What am I missing to get these to work properly? Next step is starting the stock models from scratch on all the Ops and re orienting them and seeing if it will work a second time.

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