Epoxy granite fill of a RF-45 Clone milling machine. Part 1

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I'm finally getting to the epoxy granite fill of the IH/RF-45 clone bench top milling machine. I'm also doing the column and a full flood enclosure with a 5HP belt drive to run everything. Should move along rather fast now that its started. The mill is like the PM-940 with a 1000mm table but a shorter Y.

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4 май 2022

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Комментарии : 25

@ThisDesignedThat Месяц назад

really hope to see part 2 of this build soon! great work

@ArizonaVideo99 Месяц назад

I really want to get back to the project. I have had a record amount of kit sales early this year, it has slowed down so I hope to get back to the fill soon. I have to do the spindle belt drive for the PM-940 first but I have done them before. Thanks for watching

@RustyInventions-wz6ir 3 месяца назад

Just found your channel and subscribed. Very nice work

@ArizonaVideo99 3 месяца назад

Thanks, should be back on the IH mill soon.

@ksanalyticalsystems2438 2 года назад

I still say your belt-drive mod was the best thing that ever happened to my IH12Z.

@ArizonaVideo99 2 года назад

Yep. Belt drive 2.0 is going on with the new IH. 12 groove belt with a 5HP motor.

@halfstep67 2 года назад

The pm940 base comes in at 130 pounds. The epoxy granite should make those bases a lot more solid and stable. I'll be watching so keep the vids coming.

@diamondpressco2673 Год назад

i love my pm940 we started powdercoating and fab shop in powhatan va... got to get some more work out to allow for cnc funds

@ArizonaVideo99 2 года назад

I fixed the no comments problem.

@maxlevesque 6 месяцев назад

Isn't there a risk that the drilling and tapping of the base distort the casting ? I'm not a metallurgy expert, but from my understanding, unless the casting was stress relieved, removing metal can cause distortions. I guess the a compromise is needed between maximising added stiffness (lots of of tapped rebar), and minimising metal removal from the casting (less rebar).

@ArizonaVideo99 6 месяцев назад

I'm sure their is a chance of warpage but you have to make choices. I'm quite worried that when I weld all the plates I will add stress and cause cracking. That would be a total fail. I hope to do the welding soon. I just finished the flood cooling tray for the PM-940 so as soon as the belt drive is done for that mill I will get to the weld and fill for this mill.

@glennedward2201 Год назад

At this point I would’ve just cast the entire lower in one piece so you could have a larger 16-20” Y axis. The shallow black poly home depot storage bins are perfect for a really nice base. The form adds some external bridging to the cast which looks good. You’d need a second for a stand below it and you could easily epoxy them together into one piece.

@ArizonaVideo99 Год назад

I don't really need 20" of Y and it would be hard fitting it in the small shop. The PM-940 has 14" and that is good if I need more. Hopefully I can get back on this project. I have all the epoxy and rocks, just need some time. I would say a few weeks.

@franklingomez5311 Год назад

Next time you run into a problem like this you can use a can of computer duster to freeze the bolt and make it contract. Just flip the can upside down and sprsy the stuck bolt.

@michaelalcocer6778 2 года назад

Where you getting any deflection in the base while you were using it? How much? Any worries about heat distortion from the welding? This amount of steel and epoxy is definitely going to make it more rigid.

@cncspeakers1664 2 года назад

The mill base does flex. I'm going to try to weld it so I have the least amount of stress but by nature the welds will shrink. The rods are long so I'm welding mostly the tops. I will pre flex the joint but if you weld it has to shrink. I just wont know until I do it.

@marcobotha9376 2 года назад

That is one thick base My mill base is maybe half the thickness of yours and think it is 10mm or 8mm

@moto_MO Год назад

i actually did an epoxy granite fill to my pm30 and used your kit too. make a huge difference in my opinion. just as a heads up for if you ever decide to use flood coolant, add a drain hole. otherwise it will pool up in there.

@ArizonaVideo99 Год назад

Planning on a drain.