Engraving

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Engraving

Postby knowlzy0791 » Wed Dec 03, 2014 8:03 pm

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?
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Re: Engraving

Postby FixitMike » Wed Dec 03, 2014 8:17 pm

I would suggest a diamond drag tool for engraving. I bought mine on E-Bay for $65.
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Re: Engraving

Postby knowlzy0791 » Wed Dec 03, 2014 8:41 pm

Would I need an entire new collet for something like this?
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Re: Engraving

Postby ChrisInEstes » Wed Dec 03, 2014 8:59 pm

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.

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Re: Engraving

Postby knowlzy0791 » Wed Dec 03, 2014 9:08 pm

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!
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Re: Engraving

Postby glenninvb » Wed Dec 03, 2014 10:10 pm

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
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Re: Engraving

Postby knowlzy0791 » Wed Dec 03, 2014 10:16 pm

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
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Re: Engraving

Postby ChrisInEstes » Wed Dec 03, 2014 10:19 pm

Whatever type of tooling you end up trying, make sure you run practice pieces so you don't end up ruining your "real" piece.

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Re: Engraving

Postby glenninvb » Wed Dec 03, 2014 10:26 pm

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
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Re: Engraving

Postby glenninvb » Wed Dec 03, 2014 11:00 pm

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
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Re: Engraving

Postby Leo » Thu Dec 04, 2014 12:10 am

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.
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Re: Engraving

Postby knowlzy0791 » Thu Dec 04, 2014 5:26 pm

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.
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Re: Engraving

Postby olf20 » Sat Dec 06, 2014 12:07 am

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.

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Re: Engraving

Postby Barrya » Sun Mar 11, 2018 10:24 pm

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?
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Re: Engraving

Postby Mobius » Thu Mar 15, 2018 2:40 pm

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.
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