[Mike F]

Hi,

Any one know what has happened to the videos? I get a message saying they are no longer available.

Great thread though - excellent work.

Mike

[eibbor]

Very nice thread erniebro!!!!
I have had a similar idea for a while. I'd like to have a cylinder either mounted permanatly to my table or eaisly relocated to exact same position (dowel pins) for tool diam. and length setting. It would be very much the same as yours. It would add the functions of doing the math to find tool diam. and length and set those in your tool library for current tool number. I think it would need an airblast to clean all chips off just before probeing as well.

You may also need to chuck up a round rod instead of using your bit to get good accuracy. Depending on the design of the flutes on your bit, you may not get an accurate center because of how they touch the inside of the pipe.

You may be able to get around this by running your spindle in reverse direction of tool at a very low speed.

eibbor

[erniebro]

eibbor-

If you know the ID of the pipe you can get the tool diameter. In the code above, just insert a line after

YCenter = (YPos1 + YPos2) / 2
ToolDiameter = PipeID - YPos2 + YPos1 'change PipeID to your value

I thought about rotating the spindle while doing the centering, but I didn't want my hand anywhere near a moving cutting tool! Plus, the probe circuit actuates very quickly and I'm not sure there is any guarantee that it would detect the the proper edge of your bit even if it was spinning. I guess it would depend on how fast you jogged in, the rotation speed of the bit and the amount of "debounce" in the probe circuit.

-Ernie

[erniebro]

eibbor-

It would be cool if you can get that to work. You could measure tool wear and automatically compensate on the next use of the tool. Great idea!

-Ernie

[audioandy1762]

Mike F

The videos work ok for me so I think the problem must be your end.


Andy

[Monte]

Very cool, I'll have to give it a try.

thanks,
Monte

[Robert M]

Can any one tell me how to save Ernie’s YouTube videos on my computer hard drive for future reference !
I’ve never been able to find out how to save those little informative videos !!

Earnie… Multo thanks for sharing this. It will help aot of us out here !!!

Thanks in advance, Robert M :wave:

[BobWarfield]

Awesome post!

When I get around to doing this, I think I'll put a couple bananna jacks in the box containing the breakout board for probe and ground. There are any number of gadgets one might want to plug into the probe input.

For example, any of the toolsetters or edge finders that light up a light could be adapted.

Another useful one would be an insulated probe tip and a multimeter-type test probe. The probe tip goes in the spindle and is insulated from the machine. Now you can use any of your tooling for touch offs: 1-2-3 blocks, machinist's chairs, or whatever.

Cheers,

BW

[blackbeard52]

Can any one tell me how to save Ernie’s YouTube videos on my computer hard drive for future reference !

First I would like to ask if Earniebro would like to share his video for download? It is just common courtesy to ask. if so it is very simple...

Bob

[Robert M]

Thanks Bob !

Oupss… Sorry !!
No offence intended here. I was not aware there is sort of a “copy right” with Youtube videos !!:nono:
It proves you that I’m not a full wiz with computer stuff since we can see to often copies of those Youtube videos much elsewhere than the original!!

So, Earnie, may I have a copy of your instruction / formative video ??
Thanks in advance, Robert

[erniebro]

Please feel free to download the youTube video. It's my contribution to the community.

-Ernie

[blackbeard52]

Ok double click the video and when youtube page comes up copy the link in the address bar by highlighting it and right click and copy

go here www.savetube.com and right click in the search bar and paste

scroll down to download button and click remember to save in a location you will remember like desktop.

allow it to download...this particular one is 11 meg. after it is complete rename it to whatever.......i.e. "earnie fantastic video.flv

It is important to use the FLV at the end

download this http://www.wimpyplayer.com/products/...lv_player.html

and you are in like flint....happy days

Oh yeah and the instruction I just gave are on the website!!!

Bob

[Robert M]

Bob,
Many thanks for this easy step by step. It made a better day for me !
Simple stuff can help !?

Thanks Ernie for sharing these, many will surly benefit from this !
Hoping someone come helping you when in need
Robert<O</O

[blackbeard52]

glad to help

[giga]

very thank for your post.

[Art Ransom]

On a scale of 1 to 10 MachBlue comes in about 12. I am a wood turner so my metal working equiptment is limited and I worked with what I have. To make the center/Z touch off plate I used a 1" by3.5" piece of steel from another project. Mounted it in a scroll chuck on my wood lathe and drilled a 1" hole in the center. Then used a carbide tiped hollowing tool and turned a recess for the plastic insert. Glued in the plastic insert and drilled a small dimple in the center. Look close and you can see the dimple in center of plastic.

[blackbeard52]

bet you dont have to hold that anchor!!!! lol good job

Bob

[blmartech]

awesome im making one right now, thanks for sharing!

[fretsman]

You may also have to connect a 0.10uf capacitor between the wire and ground.

erniebro, may I ask why you had to add the capcitor? Are you looking for a certain value? Should I check what my input is that I wll be using for this to be sure, and what exactly should I get with my multimeter? Thanks again for your help with this thread, it really has gotten me to make one of these but I just don't want to fry anything, lol!

[erniebro]

Dave-

I initially hooked up the signal wire without the capacitor and I got false edge detections when I ran the probing code. I think the wiring in my shop is pretty poor which doesn't help. Anyway, the capacitor helps to "debounce" the circuit so short spurious signals won't be read as a contact. It takes a good solid contact now before it registers. 0.10uf was the value suggested in several other threads and it worked for me. I didn't try any other values. Larger values will slow the circuit. Smaller values may not filter out the spurious signals. YMMV

-Ernie