Search found 3717 matches

by Jose Rivera
Mon Nov 19, 2012 10:21 pm
Forum: General Discussion
Topic: Experimental vacuum plate
Replies: 35
Views: 9075

Re: Experimental vacuum plate

F.Y.I. Just a matter of information about the vacuum plate. It works, but I opted for either double-stick tape or regular hold-down clamps. 1) The reason is that the noise of the pump is annoying. 2) Extra electricity needed. 3) If the job needs to be continued later, turning the pump off will shift...
by Jose Rivera
Mon Nov 12, 2012 1:47 pm
Forum: General Discussion
Topic: I thought that I would share this.
Replies: 1
Views: 1139

I thought that I would share this.

It may come handy for some and teach others of what modern machining can do.

Can be seeing for free in-line:

http://www.reliableedm.com/Complete-EDM-Handbook.html

Video:

http://www.youtube.com/watch?v=eaeEn1Gs4aQ

by Jose Rivera
Wed Oct 24, 2012 3:24 pm
Forum: General Discussion
Topic: DRO Installation
Replies: 13
Views: 3589

Re: DRO Installation

Thanks !!!
It's been a while that I added the DROs to my mill.
Hard to work without them.
by Jose Rivera
Mon Sep 24, 2012 8:47 pm
Forum: General Discussion
Topic: 5C Collet Slide Mount for Lathe Faceplate
Replies: 26
Views: 4224

Re: 5C Collet Slide Mount for Lathe Faceplate

Yeah, one on center and second with the amount of off-set, same on the opposite end at exactly the same vertical axis. What you are making will "work" with a relatively short crank, where you don't need to support the other end with the live center in the tail-stock. Also the overhang that your fixt...
by Jose Rivera
Mon Sep 24, 2012 2:04 pm
Forum: General Discussion
Topic: 5C Collet Slide Mount for Lathe Faceplate
Replies: 26
Views: 4224

Re: 5C Collet Slide Mount for Lathe Faceplate

Bill, I have never done a crank yet, but seeing videos of people that are machining cranks for small engines they create the off-set by putting four center drill spots, one on each end, and machine between centers.
In this way it will repeat exactly at ever set-up change.

Another of my two-cents !!
by Jose Rivera
Sat Sep 22, 2012 5:36 pm
Forum: General Discussion
Topic: 5C Collet Slide Mount for Lathe Faceplate
Replies: 26
Views: 4224

Re: 5C Collet Slide Mount for Lathe Faceplate

The balancing can be corrected with counter weights, but it will be time consuming. If I was to be using C-5 collets in my lathe these are the ones I would buy: ( the first one uses the 3 or 4 jaw chucks and the second requires a mounting plate. http://www.ebay.com/itm/KALAMAZOO-5C-Collet-Chuck-CNC...
by Jose Rivera
Sat Sep 22, 2012 12:42 pm
Forum: General Discussion
Topic: 5C Collet Slide Mount for Lathe Faceplate
Replies: 26
Views: 4224

Re: 5C Collet Slide Mount for Lathe Faceplate

Jose and Richard and Glenn and ctwo and Pete and Inspector and Ron and Lew and All-- As usual, i learn a tremendous amount from you. I will take your suggestions into the shop and see if I can improve the run out. I'll keep you updated. Jose , if I can turn it at 300 RPM, I should be able to cut a ...
by Jose Rivera
Fri Sep 21, 2012 9:29 pm
Forum: General Discussion
Topic: 5C Collet Slide Mount for Lathe Faceplate
Replies: 26
Views: 4224

Re: 5C Collet Slide Mount for Lathe Faceplate

Nice work Bill ... I see that you have been advancing very well. As an observation ... Seems to me that this devise may not be perpendicular enough to the face-plate that may cause a little wobble. Also balance could be a problem at high spindle speeds. Since collets can only hold a sixteenth over o...
by Jose Rivera
Mon Sep 17, 2012 8:43 pm
Forum: General Discussion
Topic: Good tools/Bad tools
Replies: 46
Views: 4743

Re: Good tools/Bad tools

I agree with Harold 100%. Calipers should be used as reference and a micrometer as the last word ... " AND ONLY IF THEY'RE CALIBRATED ". Calipers can flex and give different reading depending on how much force is applied. Also if the "gib" in the caliper is not tight this will cause the jaw to rock ...
by Jose Rivera
Sat Sep 15, 2012 10:12 pm
Forum: General Discussion
Topic: Good tools/Bad tools
Replies: 46
Views: 4743

Re: Good tools/Bad tools

My better quality tools come from eBay.
by Jose Rivera
Sat Sep 15, 2012 7:55 pm
Forum: General Discussion
Topic: Good tools/Bad tools
Replies: 46
Views: 4743

Re: Good tools/Bad tools

Some Chinese tools are real junk, but I can say that a bang for the buck is for real when it comes to Calipers, Micrometers, Indicators.
Not sure about durability comparing them with Mitutoyo or Starret, but they're as accurate.
It goes bad, no pain disposing them.