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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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HF Digital Calipers NOPOL
I just got a new HF CEN-TECH 4" caliper, and noticed that it even has a SPC
port. The recent sales flyer has them priced at $14.99 item # 47256-6RFH. The inch readout is in thousandths with a 5 tenths indicator. My gages show that the accuracy is good over the full 4" range, and the metric measurement is a little low at 101.60mm reading 101.58mm (so I guess I'll have to remember to use some .015mm shim for measurements over 70mm). The slide is a little stiff, but if it doesn't loosen up with use, I might back off the tension screws just a wee bit (hopefully not enough to cause slop and counting errors). There isn't a thumbwheel for slide positioning, just a ribbed thumb pad. A spare battery and a padded hard plastic case are included. It has an auto-shutoff feature. I'm a little surprised that it holds the zero set even after shutting it off. Also, it will auto-start/power-on when you pick it up and move the slide, and still hold the zero set.. kinda cool. It also does instant in/mm conversions, which is my main interest in this digital (don't have a metric dial). Metric screws and nuts aren't too difficult to recognize, but shafts and other parts trip me up frequently enough to have to fetch the calculator often. A wall chart would suffice for looking up sizes, but it's not practical for wrapping around a part to take a measurement. The main drawback is that the LCD display is so small, but WTH, it's the 4" version. Giant 5mm digits, easy to read with almost any microscope or 3 diopter lens. The jaw depth is a little over 1" so it can accomodate diameter measurements of about 2-1/4" This point can't be stressed enough, but they didn't print it directly on the caliper.. Always wear ANSI approved safety goggles when using this tool. WB ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
#2
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I have both the 4" and 6". Most of the time I use the 4". I have had it for
6 months and its work perfect. I paid $13.99 not to bad. the 4" seems to be smoother than the 6", I had my brother pick up 2 of the 6" at a one day sale, $8.99 each. "Wild Bill" wrote in message ... I just got a new HF CEN-TECH 4" caliper, and noticed that it even has a SPC port. The recent sales flyer has them priced at $14.99 item # 47256-6RFH. The inch readout is in thousandths with a 5 tenths indicator. My gages show that the accuracy is good over the full 4" range, and the metric measurement is a little low at 101.60mm reading 101.58mm (so I guess I'll have to remember to use some .015mm shim for measurements over 70mm). The slide is a little stiff, but if it doesn't loosen up with use, I might back off the tension screws just a wee bit (hopefully not enough to cause slop and counting errors). There isn't a thumbwheel for slide positioning, just a ribbed thumb pad. A spare battery and a padded hard plastic case are included. It has an auto-shutoff feature. I'm a little surprised that it holds the zero set even after shutting it off. Also, it will auto-start/power-on when you pick it up and move the slide, and still hold the zero set.. kinda cool. It also does instant in/mm conversions, which is my main interest in this digital (don't have a metric dial). Metric screws and nuts aren't too difficult to recognize, but shafts and other parts trip me up frequently enough to have to fetch the calculator often. A wall chart would suffice for looking up sizes, but it's not practical for wrapping around a part to take a measurement. The main drawback is that the LCD display is so small, but WTH, it's the 4" version. Giant 5mm digits, easy to read with almost any microscope or 3 diopter lens. The jaw depth is a little over 1" so it can accomodate diameter measurements of about 2-1/4" This point can't be stressed enough, but they didn't print it directly on the caliper.. Always wear ANSI approved safety goggles when using this tool. WB ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
#3
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Wild Bill wrote:
I just got a new HF CEN-TECH 4" caliper... It has an auto-shutoff feature. ... I have one of the HF 6" digitals. It is one of those "well worth the money" HF tools. But, my auto-shutoff doesn't work. I didn't send it back, thinking that I could remember to shut it off myself. Well, sometimes I forget. I also forgot where I put that spare battery. I should probably buy another caliper - it would be cheaper than a lifetime of replacing batteries! Bob |
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On Sat, 26 Feb 2005 08:07:53 -0500, the inscrutable "Waynemak"
spake: I have both the 4" and 6". Most of the time I use the 4". I have had it for 6 months and its work perfect. I paid $13.99 not to bad. the 4" seems to be smoother than the 6", I had my brother pick up 2 of the 6" at a one day sale, $8.99 each. Some folks reported that the Chiwanese digitals ate batteries like mad. Have you noticed that at all, Wayne? --- - Sarcasm is just one more service we offer. - http://diversify.com Web Applications |
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Larry Jaques wrote:
On Sat, 26 Feb 2005 08:07:53 -0500, the inscrutable "Waynemak" spake: I have both the 4" and 6". Most of the time I use the 4". I have had it for 6 months and its work perfect. I paid $13.99 not to bad. the 4" seems to be smoother than the 6", I had my brother pick up 2 of the 6" at a one day sale, $8.99 each. Some folks reported that the Chiwanese digitals ate batteries like mad. Have you noticed that at all, Wayne? I had a 6" for 4 or 5 years that chews up batteries. Problem is that it never turns off. There is no "off" switch - the on switch doubles as a zero reset so can't be used as a toggle. I can only assume it's supposed to be an auto-off but doesn't work properly. In any event, I have a couple of other digital calipers now, so I converted this one into a small height gauge and take the battery out when I'm not using it. (For some reason, I have more luck remembering it now than when used as calipers). Having done this once OK though, I might get another cheap digital (one that works) and convert it instead. |
#6
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On Sat, 26 Feb 2005 08:19:08 -0800, Larry Jaques
wrote: Some folks reported that the Chiwanese digitals ate batteries like mad. Have you noticed that at all, Wayne? These things are so cheap and handy I have four of them, one each located at mill, lathe and at each workbench. They don't eat batteries any faster than my Mitutoyo Digimatic does. |
#7
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I have not had the problem with the chineese calipers I have but if I forget
to open the battery case on the Starrett calipers the battery goes south fast. The chineese batteries are about .50 and the Starret batteries are about $5.00 I have left the chineese one on overnight several times and they were still going strong the next day. YMMV Glenn "Larry Jaques" wrote in message ... On Sat, 26 Feb 2005 08:07:53 -0500, the inscrutable "Waynemak" spake: I have both the 4" and 6". Most of the time I use the 4". I have had it for 6 months and its work perfect. I paid $13.99 not to bad. the 4" seems to be smoother than the 6", I had my brother pick up 2 of the 6" at a one day sale, $8.99 each. Some folks reported that the Chiwanese digitals ate batteries like mad. Have you noticed that at all, Wayne? --- - Sarcasm is just one more service we offer. - http://diversify.com Web Applications |
#8
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No problem with the battery.
"Larry Jaques" wrote in message ... On Sat, 26 Feb 2005 08:07:53 -0500, the inscrutable "Waynemak" spake: I have both the 4" and 6". Most of the time I use the 4". I have had it for 6 months and its work perfect. I paid $13.99 not to bad. the 4" seems to be smoother than the 6", I had my brother pick up 2 of the 6" at a one day sale, $8.99 each. Some folks reported that the Chiwanese digitals ate batteries like mad. Have you noticed that at all, Wayne? --- - Sarcasm is just one more service we offer. - http://diversify.com Web Applications |
#9
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"Don Foreman" wrote in message ... On Sat, 26 Feb 2005 08:19:08 -0800, Larry Jaques wrote: Some folks reported that the Chiwanese digitals ate batteries like mad. Have you noticed that at all, Wayne? These things are so cheap and handy I have four of them, one each located at mill, lathe and at each workbench. They don't eat batteries any faster than my Mitutoyo Digimatic does. But do they all agree g? |
#10
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Don Foreman wrote:
On Sat, 26 Feb 2005 08:19:08 -0800, Larry Jaques wrote: Some folks reported that the Chiwanese digitals ate batteries like mad. Have you noticed that at all, Wayne? These things are so cheap and handy I have four of them, one each located at mill, lathe and at each workbench. They don't eat batteries any faster than my Mitutoyo Digimatic does. If your Digimatic is like mine, that's really quite good. I've had mine since circa 1997-1998 and I can rember replacing the battery once, just possibly twice. Used daily for most of that time though probably only for an hour or so per day. |
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On Sat, 26 Feb 2005 16:25:28 -0600, "Mike Henry"
wrote: "Don Foreman" wrote in message .. . On Sat, 26 Feb 2005 08:19:08 -0800, Larry Jaques wrote: Some folks reported that the Chiwanese digitals ate batteries like mad. Have you noticed that at all, Wayne? These things are so cheap and handy I have four of them, one each located at mill, lathe and at each workbench. They don't eat batteries any faster than my Mitutoyo Digimatic does. But do they all agree g? Yeah they do, close enough for what I use 'em for anyway. They're knockabout handy, like a pocket scale but easier to read. If I drop one, oh well! They are no substitute for a micrometer or even a good dial caliper like an Etalon when accuracy is an issue. I'd regard them as good to .002 or perhaps a bit better. |
#12
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HF had their grand opening of a store in Johnson City TN this week. Got
a 6" caliper for $10, other great bargains. Slapped it on my gage standards when I got home. Every size is dead bang on. Bugs |
#13
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I've had 3 sets of Chinese ones for 6-7 years. They get intermittent
near grinding dust; take off the cover, pull the head off the slide, clean it up and start over - good for another 3-4 years. Remember that the spar has only an etched copper foil pattern that can be duplicated at home, if you need a 3-foot DRO... /mark Bugs wrote: HF had their grand opening of a store in Johnson City TN this week. Got a 6" caliper for $10, other great bargains. Slapped it on my gage standards when I got home. Every size is dead bang on. Bugs |
#14
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Look at the web site www.shumatech.com There is a do it your self
project to use the Chinese calipers or scales for a DRO. Dan Wild Bill wrote: The main drawback is that the LCD display is so small, but WTH, it's the 4" version. Giant 5mm digits, easy to read with almost any microscope or 3 diopter lens. The jaw depth is a little over 1" so it can accomodate diameter measurements of about 2-1/4" WB |
#15
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Some folks reported that the Chiwanese digitals ate batteries like mad. --- They don't eat batteries any more than others. The problem is that they will come on with very small amount of motion. I found that out when mine was sitting on the bench- as soon as I turned on the machine, the vibration started the caliper- now I keep it on a seperate shelf and have no problem with the batteries. |
#16
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I'm curious about the pattern that can be etched, do you have more details?
Could the reader head be built from readily available components? Thanks WB .................... "Mark" wrote in message ... I've had 3 sets of Chinese ones for 6-7 years. They get intermittent near grinding dust; take off the cover, pull the head off the slide, clean it up and start over - good for another 3-4 years. Remember that the spar has only an etched copper foil pattern that can be duplicated at home, if you need a 3-foot DRO... /mark Bugs wrote: HF had their grand opening of a store in Johnson City TN this week. Got a 6" caliper for $10, other great bargains. Slapped it on my gage standards when I got home. Every size is dead bang on. Bugs ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
#17
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I haven't seen any lately, but there are remote readout displays (1 axis)
for the China SPC scales. There was an eBay seller offering them for about $60 at one time, but I didn't see that he actually sold any of them. I can't remember if they were LCD or LED. WB .............. wrote in message oups.com... Look at the web site www.shumatech.com There is a do it your self project to use the Chinese calipers or scales for a DRO. Dan Wild Bill wrote: The main drawback is that the LCD display is so small, but WTH, it's the 4" version. Giant 5mm digits, easy to read with almost any microscope or 3 diopter lens. The jaw depth is a little over 1" so it can accomodate diameter measurements of about 2-1/4" WB ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
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