Sujet : Re: Outdoor Welding
De : Snag_one (at) *nospam* msn.com (Snag)
Groupes : rec.crafts.metalworkingDate : 28. Jun 2025, 23:30:54
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <103pqes$13vui$1@dont-email.me>
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On 6/28/2025 4:46 PM, Bob La Londe wrote:
On 6/28/2025 2:19 PM, Jim Wilkins wrote:
"Bob La Londe" wrote in message news:103pkof$12a0h$1@dont-email.me...
>
Another trick if you are using HSS, or if you are very careful using
*carbide is to use a precision dowel pin, gage pin, shank of an end
mill, 123 block, gage block, etc. Start with your cutter slightly less
than your precision dimension fromt he stock, and slowly move it until
your gage just slides between. This is "maybe" more accurate than
paper, but I treat it the same since the preload of the lead screws is
in the opposite direction.
>
I prefer an edge finder, a tool height setter, and pre-measured tool
heights, but you never know what kind of situation you may find yourself
in.
>
* If using a sharp carbide cutter you have to take a lot of care to make
sure you do not chip a cutting edge using the slip gage method.
Bob La Londe
-----------------------------------
>
Good advice.
>
I use the items you mentioned and drill shanks as spacers to set the lathe and mill stops for depth of cut when the tool contacts the original surface if caliper jaws won't fit. Like hobby machines, my 1960's antiques don't have DROs.
>
Plenty of "hobby" machines do have DROs. Just ask anybody who is using a high price "pro" machine that belongs to their boss's bank. LOL They will tell you all those import machines are hobby junk.
DROs are fairly cheap, and available for almost anything these days, but many of the "better" prosumer/hobby importers offer preinstalled DROs as an option.
There are even modestly priced DROs with bluetooth interface for a tablet or maybe a cell phone. I'm not sure there. I like my DRO hanging off of a big heavy steel arm.
I recently upgraded from a Shumatech DRO350 to a real DRO with optical scales instead of capacitive on my bench top mill . It hangs from a modestly sized piece of steel square tube . I briefly considered putting the Shumatech unit on my lathe but saw no particular advantage for doing so .
-- SnagWe live in a time where intelligent peopleare being silenced so thatstupid people won't be offended.