The current is what is going to do most of the damage (well, the combination is). It seems like a better approach would be to insulate your contact tip from...
31435
Barry Lochridge
barrydc1
Jun 4, 2012 6:09 pm
Would there be the same seasoning and warping problem using durabar cast-iron? That's what I was considering. Maybe I'll have to look into the bronze/brass...
31434
Corey Renner
corey94945
Jun 4, 2012 5:10 pm
The clamping range on ER's is generous, so this is fine. Also, the dirty little secret is that often you are getting a metric collet with inch markings anyway...
31433
ndhr23a
Jun 4, 2012 5:00 pm
Is the clamping ability of metric ER32 collets on imperial sizes significantly reduced? In other words will a 13mm collet clamp a 1/2" shank significantly...
31432
Rick Sparber
rgsparber
Jun 4, 2012 1:26 pm
I have heard a lot of compelling arguments on why 1.5V at 1 amp through a bearing can start and sustain an arc that could pit the surface. What if I used 20...
31431
clumsysoftballerz
clumsysoftba...
Jun 4, 2012 1:13 pm
I don't know if any "discount"; dealers that sell premium cutters, but you can use data flutes distributor look up to find local dealers. I'm sure some will...
31430
Curt Wuollet
curtwuollet
Jun 4, 2012 4:26 am
I use a spindex for the indexing with a vise if the flat are down the rod from the collet....
31429
Rick Sparber
rgsparber
Jun 4, 2012 4:22 am
I have developed an Electronic Edge Finder circuit that can detect touch-down in cases where the machine has a very low (10 milli ohms) resistance across its...
31428
Bill
warmstrong1955
Jun 3, 2012 9:33 pm
Don't know if they make R8 collet blocks, but if you buy a set of 5C collet blocks.... http://www.use-enco.com/CGI/INSRIT?PMAKA=235-7050 ....and a set of 5C...
31427
rexarino
Jun 3, 2012 9:29 pm
Mount the rod horizontally off the floor of the mill table, perhaps in a Vee block. Use the side of an end mill to cut a flat on one SIDE (not top or bottom)...
31426
Curtis J Blank
curtblank
Jun 3, 2012 9:12 pm
But then the sides would have to be wider to allow for the radius of the cutter correct? I thought of that, that wasn't desirable, I wanted it squared, one of...
31425
November X-Ray
n8676x
Jun 3, 2012 7:05 pm
You can cut three flats with the round work piece clamped horizontally in a vice without ever removing the work piece. Both sides and the top, so for just...
31424
Curtis J Blank
curtblank
Jun 3, 2012 6:52 pm
Whoa! I like that! Wasn't familiar with collect blocks, but now I am. Do they make them for R8 collets? See 5C but don't really want to then buy 5C collets for...
31423
Corey Renner
corey94945
Jun 3, 2012 6:39 pm
Stick it in a collet block, cut one side, flip it, cut the other. cheers, c On Sun, Jun 3, 2012 at 11:35 AM, Curtis J Blank...
31422
Curtis J Blank
curtblank
Jun 3, 2012 6:35 pm
So how does one go about cutting two wrench flats on a diameter on a vertical milling machine accurately? Not on the end of a rod and without spending a lot of...
31421
Curtis J Blank
curtblank
Jun 3, 2012 5:48 pm
Well yesterday I used what I learned here. Had to cut some flats on a 1" diameter piece of 1018 steel and used a 2 flute end mill. Have to say it did a nice...
31420
Curtis J Blank
curtblank
Jun 3, 2012 3:06 pm
So I was just going to order some Moly-Dee from Enco after having a bitch of a time using a 1/2"-13 tap in some 1018 steel yesterday and when I try it says...
31419
Corey Renner
corey94945
Jun 2, 2012 5:39 pm
I'd like to try them as well. If anyone knows a good source, preferably one of the big discounters like Enco, MSC, WT, etc, I'd like to hear about it. cheers,...
31418
Curtis J Blank
curtblank
Jun 2, 2012 4:27 pm
Thanks, I'll look for those EM's and pick some up to try if I can find them. -Curt...
31417
Curtis J Blank
curtblank
Jun 2, 2012 4:25 pm
Thanks Stan. The cutting explanation let me visualize it. I do use flood cooling all the time even when drilling a hole, makes a big difference. I was worried...
31416
clumsysoftballerz
clumsysoftba...
Jun 2, 2012 2:09 pm
If you really want to save some money and get great finish on Aluminum try Data Flute ARF & AFI series end mills. I used to use Niagara High Helix 2 flute EM...
31415
Dallas Richardson
classicpoints
Jun 2, 2012 2:07 pm
NDHR; Do you know how much your mill/drill weighs?? I have seen some pretty good size machinery put on those desks with no problem.. I would stay under 500...
31414
mn_metalbutcher
Jun 2, 2012 1:55 pm
It's done all the time. I've seen 12x36 lathes mounted on them with no problem. Those old steel desks are built like tanks so you should be fine....
31413
ndhr23a
Jun 2, 2012 1:15 pm
I have a HF33686 mill/drill that I would like to put on an old Steelcase desk. I know this desk is very strong but I'm not sure how much it can handle. Does...
31412
Stan Stocker
stanstocker
Jun 2, 2012 12:07 pm
Hi Curtis, Few four flute cutters are end cutting. If you are plunging into the work you need end cutting mills. There are end cutting four flute mills, they...
31411
Curtis J Blank
curtblank
Jun 2, 2012 1:08 am
LOL Not a chance now, you just gave me a use for them, and thanks for that! I've been making some jigs lately (and have to remake one due to a design change)...
31410
Dallas Richardson
classicpoints
Jun 2, 2012 12:58 am
Curtis; As I understand it?? 2 flute is for aluminum ,brass and bronze. four flute is for steel and harder materials?? ...
31409
Corey Renner
corey94945
Jun 2, 2012 12:51 am
2-flute is better when chip evacuation is an issue, the most-extreme scenario is when making a slot that is the width of the endmill itself. A 2-flute EM will...
31408
Curtis J Blank
curtblank
Jun 2, 2012 12:39 am
Speaking of Speedy Metals, what I've noticed is their web prices are higher then their normal prices. I always pick the stuff up from them, was there twice...
31407
Curtis J Blank
curtblank
Jun 2, 2012 12:17 am
Well, cutting tool question I guess, ball end, radius, etc. 2 flute verses 4 flute. I tend to buy and use 4 flute cutters exclusively. I have 2 flute end mills...
