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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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#1
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Hi,
I would like to rig up a low tech, cheap handwheel counter for my manual milling machine. I'm picturing a three or four digit counter that looks like an odometer and can be reset with the push of a button. With each turn of the handwheel something on the handwheel hits the counter and increases it by one. I don't know what these parts would actually be called or where they could be purchased. Any ideas? Thanks, Peter |
#2
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I must have only seen those at surplus stores for less than five bucks
about 300 times. How hard have you looked? - GWE Peter Michaux wrote: Hi, I would like to rig up a low tech, cheap handwheel counter for my manual milling machine. I'm picturing a three or four digit counter that looks like an odometer and can be reset with the push of a button. With each turn of the handwheel something on the handwheel hits the counter and increases it by one. I don't know what these parts would actually be called or where they could be purchased. Any ideas? Thanks, Peter |
#3
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Checkmate wrote:
On 8 Dec 2003 14:36:16 -0800, Peter Michaux put forth the notion that... Hi, I would like to rig up a low tech, cheap handwheel counter for my manual milling machine. I'm picturing a three or four digit counter that looks like an odometer and can be reset with the push of a button. With each turn of the handwheel something on the handwheel hits the counter and increases it by one. I don't know what these parts would actually be called or where they could be purchased. Any ideas? Thanks, Peter Just a trip-action counter? Try eBay first, then McMaster-Carr: http://www.mcmaster.com/ Page 1381 in the dead-tree edition |
#5
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A lot of surplus dealers sell these, as someone mentioned. You might try
searching for totalizing mechanical digital counters, or even digital counters. It seems that the last time I was looking for digital counters, I encountered several dealers offering these. They can have different types if actuation, some have a shaft that clicks over to the next digit when its partially rotated, like a micro-switch lever. These can be cam actuated. For industrial applications, these might have a 10k or higher count. They're not tiny, so having space to mount them could present a problem. You might find a 3 digit counter of this type, but I've mostly seen higher counts. Another type has a revolution counter that looks like an odometer (driven by a small belt or friction wheel) which would need to be set up for the diameter of the handwheel for a 1:1 count. The last one I saw was on a downrigger for fishing at a specific depth. It was small, about 2" x 1 x 1 and 3 digits. That Shack electronics store used to have a digital LCD totalizing counter module that could count switch closures. These were small (about the size of a D-cell's L x W dimensions) and used a single AA battery for power. Two momentary switches for count and reset would be required, and another for on/off. It had a total of 99,999 count, I think. We've got answers.. From a recent Letterman show.. We don't know what it does, but it's very compact. WB ............... "Peter Michaux" wrote in message om... Hi, I would like to rig up a low tech, cheap handwheel counter for my manual milling machine. I'm picturing a three or four digit counter that looks like an odometer and can be reset with the push of a button. With each turn of the handwheel something on the handwheel hits the counter and increases it by one. I don't know what these parts would actually be called or where they could be purchased. Any ideas? Thanks, Peter |
#6
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"Peter Michaux" wrote in message
. com... Hi, I would like to rig up a low tech, cheap handwheel counter for my manual milling machine. I'm picturing a three or four digit counter I checked Ebay last night and found several "hand counter" listings starting at $0.99 each. Cheap enough for ya? ![]() ------------------------------------------------------- "i" before "e", except after "c", what a weird society. ---- http://diversify.com Dynamic Website Applications |
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