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Thread: Rebirth of The Pacific FT-2 Mill
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18th Nov 2017, 07:14 AM #91Diamond Member
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that's a Capto arbor. The are a pretty rigid connection, contacts on both the face and the taper. The arbor you have would be for modular tooling, they also use that connection in the spindle of some machining centers, mainly high end millturn machines. I think its going to be pretty useless to you the tooling is pretty expensive.
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18th Nov 2017, 07:18 AM #92Most Valued Member
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Thanks Neil and Snapa.
Think you are correct and yes its pretty much useless to me unless i can modifh it to take another tool.
Thanks for your replies.
Simon
Sent from my SM-G900I using TapatalkGirl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
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18th Nov 2017, 08:12 AM #93Philomath in training
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I still have the 40 taper QC tooling if you want QC...
//metalworkforums.com/f223/t201105-surplus-items
Michael
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19th Nov 2017, 06:50 PM #94Most Valued Member
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Thanks Michael. I will keep that in mind.
Sent from my SM-G900I using TapatalkGirl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
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12th Jun 2018, 08:26 AM #95Most Valued Member
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Hi all,
Been doing a little bit here and there on the mill. One thing that had been troubling me a bit was that fact that when I filled the oil cup (that lives on the side of the head) with oil, it took quite a lot of oil for it to finally drip through the spindle bearings and when it did, the oil was not the cleanest.
I ignored this for some time but then when I looked at the price of replacement spindle bearings I got a little concerned. I figure the small amount of effort required to remove the spindle and clean up any crap on the bearings would be time well spent.
So, I have taken the spindle out. It has a very similar setup to a Bridgeport and presented no problem getting it out. So the bearing setup is two precision bearings preloaded with spacers on the inner and out race and a long spacer snugged up with a nut.
This setup means that access to these bearings for cleaning is very limited without removal. Question is, can precision bearings that are pre-fit on a shaft be removed without damage? Usually these bearings are only removed for replacement and so damage is not usually an issue.
BTW, the bearings seem pretty good. Certainly the spindle makes a lovely noise when run.
I post a pick from my phone...
SimonGirl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
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12th Jun 2018, 08:28 AM #96Most Valued Member
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Spindle assembly
Sent from my SM-G900I using TapatalkGirl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
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12th Jun 2018, 08:17 PM #97Most Valued Member
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Well against my better judgement i disassembled to spindle.
I mostly went to plan although i did have an "oh crap" moment when the lower precision FAFNIR bearing outer race decided to part company with the inner race and shoot balls everywhere.
I really thought id done my dash with that bearing but it turned out that they come apart pretty easily. So i took both apart to inspect the races. They look ok.
I also took the time to inspect the iso40 taper for wear/damage.
Also i measured the runout of the spindle and marked it. The spindle bearings have a 2um runout mark on the inner and outer race so placing the high part of the inner 180 degrees to the high spot on the spindle should reduce the overall runout from a measured 6um to hopefully 4um.
Sent from my SM-G900I using TapatalkGirl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
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12th Jun 2018, 08:27 PM #98Most Valued Member
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G/day simon, I have pulled the head on my mill to a zillion pieces also.
I also wasn't going to disassemble my spindle and when I read your post above I didn't want to suggest one way or the other, as you know things can go south real quick.
After seeing your post I have decided not to be a pussy and do my brgs also, thank you. (I think)
cheers, shed
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12th Jun 2018, 08:46 PM #99Most Valued Member
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Hi Shed. One thing always leads to another with me. Originally i was just going to remove the spindle and leave it complete and just flush the bearings. However once i got it out i realised that to get it truely clean so as to preserve the bearings and remove all crud, it had to be completely pulled apart.
I have read on other forums that they flhshed them with solvent or hydraulic oil until clean but when you think how clean and cautious you need to be when installing new bearings ie white gloves etc. Its hard to think you can get them that clean again.
Good luck. Post some pics. Im keen to see how different mills have their spindles set up.
PS if yours goes pear shaped then im denying all responsibility!
Simon
Sent from my SM-G900I using TapatalkGirl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
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13th Jun 2018, 02:01 PM #100Most Valued Member
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Spindle assembly is now cleaned and re-assembled.
In an effort to slip the bearings on easier i put the spindle in the freezer and put the bearings in my food hydrater set to 70 degrees.
Ive done this before with the Gamett tapered roller bearings in the SG spindle but used the oven. I was concerned about too much heat because the bearjngs have a phenolic retainer and wasnt sure how much hsat they could take. The SG bearings i heated to about 100 dgrees and they literally fell on the shaft. However seems like 70 degrees is nof quite enough as they were still a press fit. Oh well.
I also gave the quill a clean and inspection, making sure the wick from the cup oiler directs the oil in the right spot.
I guess i wont really know if ive done a good job until i fire it up and listen. Im also keen to measure the runout of the taper in the spindle.
Just waiting for some engineering felt to arrive so i can replace the dirty old felt disc that sits at the top.
Until then the spindle stays wrapped in glad wrap.
Simon
Sent from my SM-G900I using TapatalkGirl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
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13th Jun 2018, 08:45 PM #101Most Valued Member
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14th Jun 2018, 09:29 PM #102Most Valued Member
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Surely thats not impossible for someone of your capabilities?
Sent from my SM-G900I using TapatalkGirl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
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15th Jun 2018, 05:50 PM #103Most Valued Member
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Actually both the pinion and crown are RS and they dont look easy to make...........
I am toying with the idea that if i have to cut gears why not cut some spur gears and fit an electric motor
with a speed control, i mean why have 3 feed speeds when i can make it variable
cheers, shed
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15th Jun 2018, 06:27 PM #104Most Valued Member
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Hey shed there are a couple of US online stores that sell those parts and also an ebay store that sells them for the bridgeport for what i would call a reasonable price.
If you wanted, we could possibly place a joint order and ship it through my US shipping address. That would make shipping reasonable. I just have to see if the bridgeport part is compatible.
Simon
Sent from my SM-G900I using TapatalkGirl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
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15th Jun 2018, 07:38 PM #105Most Valued Member
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I was thinking what are the chances a bridgeport part would fit my mill?
Numbers 3 & 31 look the same as mine Bridgeport Parts - Quill Housing Assembly
But I think that while it has it's gut's spread across the workshop making the quill feed variable would be very worthwhile,
sometimes in the past I have struggled to get good surface finish when boring small holes with thin boring bars and I
reckon that with a variable feed it is likely possible to find the sweet spot.
I have had a look and can't find an electric feed for a bridgeport, if you can post a link......
cheers, shed
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