The Home Machinist!

The vise stop is finished and the window in the slider turned out OK, but not quite perfect (things seldom are). Having been self employed most of my life, it occurs to me that I spent several hours making something I could have bought for $49. I think of it as education. I read over the post on Har...

Mid Day Machining wrote:Does your machine have a digital readout on it? If not, you could use some 2 inch travel indicators as guides. It's not really that hard.

I do not have a DRO although it is on my list. I am not familiar with the 2" travel indicators.

So, assuming a 1" sq hole for simplicity I would rough a through opening in 6 passes or so to say .950 on each side. Then I would make a cleanup pass on all 4 sides moving .970 on my dials on each sides, making careful note of the dial positions. I would then measure all 4 sides and calculate h...

How would I make a square hole in a piece of aluminum while dealing with backlash? I am talking about a 3/4"x1" hole through a piece of 7075 2" x 3" x 1/2" using a 3/8" endmill. I am thinking I could either measure the backlash and add it in, or I could rough ( I would ...

http://www.use-enco.com/CGI/INSRIT?PMAKA=505-2280 Phase II
http://www.use-enco.com/CGI/INSRIT?PMAKA=235-6011 Enco

Both of these indexers actually say Phase II on them. Same Photo in fact. Do you suppose they actually are the same unit?

Oh.... and I forgot.... I got an aluminum oxide wheel from MSC.... Don't know why Enco doesn't carry 'em.... http://www1.mscdirect.com/CGI/NNPDFF?PMPAGE=947&PMITEM=89694947&PMCTLG=54 Bill The first Enco link above has blue aluminum oxide wheels of various sizes and hardness on page 225 of t...

This is a 7/16 bit I just got yesterday. It seems to cut OK without a pilot hole although I had one most of the way through my 4.5" block of 7050.

Thanks Steve.

I'll have to start getting my cereal from Carbide Depot

They would appear to be interchangeable then.

Does anyone know what the difference between these 2 inserts is? Are they interchangeable? I would use them in a TMX Maxi-mizer Indexable Face Milling Cutter 4".

Mine says SUPERC also.

Mine has a nylon lock nut on the bottom and then the gear slides right of with my fingers. There is a pin through the shaft but it fits into a recess cut into the top of the aluminum hub. I have not separated the hub from the zytel gear. It has a C-clip on top. My armature and field melted themselve...

How much should I tighten the drawbar on my Gorton I-22 with a B&S #9 spindle? Is there an accepted practice or just if the endmill pulls out it should be tighter? I made a new drawbar after recently figuring out what it should look like. When I bought the mill it looked like this (which I am su...