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Engraving

Posted: Wed Dec 03, 2014 8:03 pm
by knowlzy0791
Cannot seem to navigate to the "steel" section of Onsrud's bits. Can someone suggest a good steel engraving bit?

Not doing anything fancy. Just simple names and numbers about .03-.05 deep. Perhaps even an end mill would work and be quicker?

Re: Engraving

Posted: Wed Dec 03, 2014 8:17 pm
by FixitMike
I would suggest a diamond drag tool for engraving. I bought mine on E-Bay for $65.

Re: Engraving

Posted: Wed Dec 03, 2014 8:41 pm
by knowlzy0791
Would I need an entire new collet for something like this?

Re: Engraving

Posted: Wed Dec 03, 2014 8:59 pm
by ChrisInEstes
knowlzy0791 wrote:Would I need an entire new collet for something like this?
It depends on your collet. I have 1/8", 1/4", 3/8", & 1/2" collets for my spindle.

I bought the 3/8" collet version of this drag bit off ebay. It came recommended to me from Xxray here on the forums.

eBay link to 1/4" collet Diamond Drag Bit: http://www.ebay.com/itm/1-4-DIA-DIAMOND ... 3f42057525

Do an eBay search for Diamond Drag Bits... There are others.

Chris

Re: Engraving

Posted: Wed Dec 03, 2014 9:08 pm
by knowlzy0791
ChrisInEstes wrote:
knowlzy0791 wrote:Would I need an entire new collet for something like this?
It depends on your collet. I have 1/8", 1/4", 3/8", & 1/2" collets for my spindle.

I bought the 3/8" collet version of this drag bit off ebay. It came recommended to me from Xxray here on the forums.

eBay link to 1/4" collet Diamond Drag Bit: http://www.ebay.com/itm/1-4-DIA-DIAMOND ... 3f42057525

Do an eBay search for Diamond Drag Bits... There are others.

Chris
I was looking at that one. I have a 1/4" collet right now. All my end mills are 1/4" in diameter. Wasn't sure if a new collet was needed because of the "spring-loaded" part.

Thanks for the help!

Re: Engraving

Posted: Wed Dec 03, 2014 10:10 pm
by glenninvb
knowlzy,

.030 - .050 is deep for a diamond drag, I've used regular half-round carbide on coated steel award plaque material but only .005- .010 deep (single pass @ 100ipm)
Coolant prolongs life, but can cut dry (my feed rates, much higher than recommended ) @15000 rpm

Do you need to cut that deep?
For light engraving the diamond would probably be the best choice as its spring loaded and should last a long time

http://www.2linc.com/engraving_assistan ... speeds.htm
http://www.2linc.com/engraving_tools_tough_tip.htm

Re: Engraving

Posted: Wed Dec 03, 2014 10:16 pm
by knowlzy0791
There is no "regulation" on how deep it needs to be. So long as it is easily visible and readable. Never messed with this before so I do not know how well any of the depths will be visible?

glenninvb wrote:knowlzy,

.030 - .050 is deep for a diamond drag, I've used regular half-round carbide on coated steel award plaque material but only .005- .010 deep (single pass @ 100ipm)
Coolant prolongs life, but can cut dry (my feed rates, much higher than recommended ) @15000 rpm

Do you need to cut that deep?
For light engraving the diamond would probably be the best choice as its spring loaded and should last a long time

http://www.2linc.com/engraving_assistan ... speeds.htm
http://www.2linc.com/engraving_tools_tough_tip.htm

Re: Engraving

Posted: Wed Dec 03, 2014 10:19 pm
by ChrisInEstes
Whatever type of tooling you end up trying, make sure you run practice pieces so you don't end up ruining your "real" piece.

Chris

Re: Engraving

Posted: Wed Dec 03, 2014 10:26 pm
by glenninvb
knowlzy0791 wrote:There is no "regulation" on how deep it needs to be. So long as it is easily visible and readable. Never messed with this before so I do not know how well any of the depths will be visible?

glenninvb wrote:knowlzy,

.030 - .050 is deep for a diamond drag, I've used regular half-round carbide on coated steel award plaque material but only .005- .010 deep (single pass @ 100ipm)
Coolant prolongs life, but can cut dry (my feed rates, much higher than recommended ) @15000 rpm

Do you need to cut that deep?
For light engraving the diamond would probably be the best choice as its spring loaded and should last a long time

http://www.2linc.com/engraving_assistan ... speeds.htm
http://www.2linc.com/engraving_tools_tough_tip.htm
I'm not sure how deep a dia/drag cuts in steel? guessing .002-.003 @ moderate pressure. I'm sure someone else can answer
there was a recent topic on engraving lighters, and you can fill the text for more visability

Re: Engraving

Posted: Wed Dec 03, 2014 11:00 pm
by glenninvb
Oh, and to elaborate, the painted steel plaque material I mentioned was bought on EBay as painted brass engraving stock, turns out it was painted- brass plated steel laser stock :( I didn't use, but the conical carbide bit cut it nice........... Knew it was too cheap

Re: Engraving

Posted: Thu Dec 04, 2014 12:10 am
by Leo
When I worked at a large very well known medical device manufacturer we engraved all the 17-4PH stainless steel parts with a 1/32 ball end mill. Spindle RPM 15,000 and a feedrate of 5 IPM. DOC=.005 We engraved miles and miles of text that way.

Re: Engraving

Posted: Thu Dec 04, 2014 5:26 pm
by knowlzy0791
Leo wrote:When I worked at a large very well known medical device manufacturer we engraved all the 17-4PH stainless steel parts with a 1/32 ball end mill. Spindle RPM 15,000 and a feedrate of 5 IPM. DOC=.005 We engraved miles and miles of text that way.
Thanks! I will probably go this route then, I'm used to end mills.

Re: Engraving

Posted: Sat Dec 06, 2014 12:07 am
by olf20
I done some of my best engraving with 90 and 120 degree
v bits. I don't remember the sizes but they had 1/4 shanks.

olf20 / Bob

Re: Engraving

Posted: Sun Mar 11, 2018 10:24 pm
by Barrya
THe touch plate does not see the diamond tip, how is the proper way to set zero z with either a diamond drag bit or a spring loaded diamond drag bit?

Re: Engraving

Posted: Thu Mar 15, 2018 2:40 pm
by Mobius
Barrya wrote:THe touch plate does not see the diamond tip, how is the proper way to set zero z with either a diamond drag bit or a spring loaded diamond drag bit?
I manually zero mine. Bring it down until it makes contact with the top of the material and zero it out.