• Scam Alert. Members are reminded to NOT send money to buy anything. Don't buy things remote and have it shipped - go get it yourself, pay in person, and take your equipment with you. Scammers have burned people on this forum. Urgency, secrecy, excuses, selling for friend, newish members, FUD, are RED FLAGS. A video conference call is not adequate assurance. Face to face interactions are required. Please report suspicions to the forum admins. Stay Safe - anyone can get scammed.
  • Several Regions have held meetups already, but others are being planned or are evaluating the interest. The Ontario GTA West area meetup is planned for Saturday April 26th at Greasemonkeys shop in Aylmer Ontario. If you are interested and haven’t signed up yet, click here! Arbutus has also explored interest in a Fraser Valley meetup but it seems members either missed his thread or had other plans. Let him know if you are interested in a meetup later in the year by posting here! Slowpoke is trying to pull together an Ottawa area meetup later this summer. No date has been selected yet, so let him know if you are interested here! We are not aware of any other meetups being planned this year. If you are interested in doing something in your area, let everyone know and make it happen! Meetups are a great way to make new machining friends and get hands on help in your area. Don’t be shy, sign up and come, or plan your own meetup!

any here within Calgary have a pressure to force gauge they can rent/lend?

T

ttlrfrank

Member
Am trying to set up a chart for an arbor press and using a torque wrench on the handle-side, wanting to plot out how much torque on the wrench will produce a certain amount of pressure on the press's ram

I know I could use math to try to estimate this but an actual guage would probably give more-accurate data

Here's the type of gauge I'm contemplating
www.woodysrocks.com

Pressure to Force Gauges

Pyro Tools, Seasonal Fireworks, Rocket Tools, Comet Pumps, Star Pumps, Ball Milling, Press Tools, Star Plates
www.woodysrocks.com
 
If you have a hydraulic cylinder and a pressure gauge you can make that work as well. Will still require a little math depending on what you can put together though.
 
@Greywynd - had that thought already brewing in my head and indeed went ahead and built one. Seems to work fairly well if the comparison I did against someone elses shop press/gauge was accurate...shows that I'm reading about 10% high but had already assumed that my gauge reading would be a bit off due to the (reading) ram piston not being precisely 1" sq. Attached a torque wrench to measure the input force and the relationship appears to be 100PSI per 7.8ft/lbs applied on the handle.

Would like to do more sampling across other shop presses to calculate an avg margin of error on my device
 
ttlrfrank said:
Would like to do more sampling across other shop presses to calculate an avg margin of error on my device
Click to expand...

I don't know why you would need to. If you can use a torque wrench on it, you already know what the error is. If you are worried about the accuracy of a torque wrench, you can use a weight on a moment arm for as much accuracy as your scale and length measurement provides.
 
Back
Top