Re: Corona lockdown challenge

#15066

So.....you didn't get a pic of the important part of the new house.......

;)
Bill

Show quoted text

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Jerry Durand
Sent: Thursday, April 23, 2020 6:28 PM
To: [email protected]
Subject: Re: [4x6bandsaw] Corona lockdown challenge

I got a short break here to work on getting rid of stuff here, but now
our house contractors are back to work with a special work permit.听 This
leads to things like the late night DING DING DING on my phone, they
need an updated drawing for something NOW.听 Problem being half a world
away from the construction site.

On the plus side, it's coming along nicely.

On the other hand, just got the electrician's bill.听 Their base price is
for one outlet per room.听 I blew past that even in the pantry!听 :)听 But,
this is a top-rated electrical contractor so it will be done right.

The main part of our project at the link below.听 The machine shop is a 1
story section off the right edge of the picture.

On 4/23/20 5:18 PM, Terry Coombs wrote:
听 I don't really need another stand for the bandsaw , but I do need a
log dragging device to pull behind my yard tractor ... problem is that
my work load didn't change because of the virus . The still under
construction house still needs work , bees need tending , garden takes
up some time too . Then there are all those trees out there that have
been marked for firewood for next winter . A country boy can survive ,
but it's a lot of work !
-- 
Jerry Durand, Durand Interstellar, Inc. +1 408-356-3886
www.DurandInterstellar.com & www.Durandinterstellar.ru

Re: Corona lockdown challenge

#15065

I got a short break here to work on getting rid of stuff here, but now
our house contractors are back to work with a special work permit.听 This
leads to things like the late night DING DING DING on my phone, they
need an updated drawing for something NOW.听 Problem being half a world
away from the construction site.

On the plus side, it's coming along nicely.

On the other hand, just got the electrician's bill.听 Their base price is
for one outlet per room.听 I blew past that even in the pantry!听 :)听 But,
this is a top-rated electrical contractor so it will be done right.

The main part of our project at the link below.听 The machine shop is a 1
story section off the right edge of the picture.

Show quoted text

On 4/23/20 5:18 PM, Terry Coombs wrote:
听 I don't really need another stand for the bandsaw , but I do need a
log dragging device to pull behind my yard tractor ... problem is that
my work load didn't change because of the virus . The still under
construction house still needs work , bees need tending , garden takes
up some time too . Then there are all those trees out there that have
been marked for firewood for next winter . A country boy can survive ,
but it's a lot of work !

-- 
Jerry Durand, Durand Interstellar, Inc. +1 408-356-3886
www.DurandInterstellar.com & www.Durandinterstellar.ru

Re: Corona lockdown challenge

#15064

开云体育

On 4/23/2020 6:01 PM, John Vreede wrote:

Hey all
Nice to see new members and Bill's welcome comment about cutting up a 'big pile of metal' stirred something in my head.
Everyone likes to make听stuff, and if you're going to cut up 'big metal', you need a couple stands either side of the saw.听
Most of us are stuck at home with the coronavirus just now, which gives us the time, if not necessarily the access to materials, to do something.
The challenge then is to make a couple of stands from what ever you have in your scrap pile.听
Here's the design criteria:
听听1. They've got to support a 10' (3m) length of 2" steel pipe
听听2. 3 point contact on ground, so they're stable
听听3. Can be set to the exact height of the saw vice-table
听听4. Fold up, so can you can store them easily
听听5. Have something to stop the stuff you're going to cut from rolling off the top
The only rule is you got to make with only the bandsaw, a welder and hand tools (incl electric handtools)听 +听whatever materials, hardware, glue etc you have to hand.
Are you up for it?
As a start point I'll attach a photo and the design of my stands which were made to those criteria and rules except I was able to buy the materials at the time.听 They took me a couple of hours to make and are pretty simple.
I know this will favour those with bigger scrap piles, but that needn't stop you from treating it like an exercise in survival skills, having to make-do.听
Hopefully someone will do an even simpler design, and one for swivel-based saws too.
In the end we'll have fun and there will be new designs of neat stuff to build.
Who could ask for more? A bottle of Corona to celebrate? - jv
_._,_._,_

听 I don't really need another stand for the bandsaw , but I do need a log dragging device to pull behind my yard tractor ... problem is that my work load didn't change because of the virus . The still under construction house still needs work , bees need tending , garden takes up some time too . Then there are all those trees out there that have been marked for firewood for next winter . A country boy can survive , but it's a lot of work !

Re: Corona lockdown challenge

#15063

开云体育

Exactly what I was talkin鈥� about John!

And, exactly what I鈥檓 doing.

听

Right now, I鈥檓 building a little box blade for my garden tractor. One of those things I have been planning to do for a while, but never got to it.

听

It鈥檚 mostly tacked together, so I tossed the other goodies on, like the axle & linear actuator, tires & wheels, etc, to take some pics & show how it鈥檚 going to look more or less, when it鈥檚 done. I haven鈥檛 cut & drilled the cutting edge yet.

听

I tweaked my original design, to use steel I had laying around.

The linear actuator, I bought a couple years ago, for this project.

The tires & wheels are off of an old hand truck I put flat-proof鈥檚 on. I had some new inner tubes, and installed those, since they leaked all the time.

I needed a piece of 5/8鈥� round for the axle, but since I didn鈥檛 have any, I cut & threaded a piece of 1鈥� hot roll, and I鈥檓 using capscrews for spindles.

The ball hitch coupling is leftover from a previous project. I ordered some 2鈥� couplings, and one I received was a 1-7/8鈥�. They sent me the correct one, but they didn鈥檛 want the 1-7/8鈥� back鈥�.no doubt the freight cost more than it was worth to them. It鈥檚 been laying on my shelf for 8 or 10 years.

听

Anyway鈥�..there ya go.

I still need to fab the hitch for the tractor. I have all that laying around too.

听

Fun stuff. I hope the pic鈥檚 come through.

听

Bill

听

Show quoted text

From: [email protected] [mailto:[email protected]] On Behalf Of John Vreede
Sent: Thursday, April 23, 2020 4:02 PM
To: [email protected]
Subject: [4x6bandsaw] Corona lockdown challenge

听

Hey all
Nice to see new members and Bill's welcome comment about cutting up a 'big pile of metal' stirred something in my head.
Everyone likes to make听stuff, and if you're going to cut up 'big metal', you need a couple stands either side of the saw.听
Most of us are stuck at home with the coronavirus just now, which gives us the time, if not necessarily the access to materials, to do something.
The challenge then is to make a couple of stands from what ever you have in your scrap pile.听
Here's the design criteria:
听听1. They've got to support a 10' (3m) length of 2" steel pipe
听听2. 3 point contact on ground, so they're stable
听听3. Can be set to the exact height of the saw vice-table
听听4. Fold up, so can you can store them easily
听听5. Have something to stop the stuff you're going to cut from rolling off the top
The only rule is you got to make with only the bandsaw, a welder and hand tools (incl electric handtools)听 +听whatever materials, hardware, glue etc you have to hand.
Are you up for it?
As a start point I'll attach a photo and the design of my stands which were made to those criteria and rules except I was able to buy the materials at the time.听 They took me a couple of hours to make and are pretty simple.
I know this will favour those with bigger scrap piles, but that needn't stop you from treating it like an exercise in survival skills, having to make-do.听
Hopefully someone will do an even simpler design, and one for swivel-based saws too.
In the end we'll have fun and there will be new designs of neat stuff to build.
Who could ask for more? A bottle of Corona to celebrate? - jv

Corona lockdown challenge

#15062

Hey all
Nice to see new members and Bill's welcome comment about cutting up a 'big pile of metal' stirred something in my head.
Everyone likes to make听stuff, and if you're going to cut up 'big metal', you need a couple stands either side of the saw.听
Most of us are stuck at home with the coronavirus just now, which gives us the time, if not necessarily the access to materials, to do something.
The challenge then is to make a couple of stands from what ever you have in your scrap pile.听
Here's the design criteria:
听听1. They've got to support a 10' (3m) length of 2" steel pipe
听听2. 3 point contact on ground, so they're stable
听听3. Can be set to the exact height of the saw vice-table
听听4. Fold up, so can you can store them easily
听听5. Have something to stop the stuff you're going to cut from rolling off the top
The only rule is you got to make with only the bandsaw, a welder and hand tools (incl electric handtools)听 +听whatever materials, hardware, glue etc you have to hand.
Are you up for it?
As a start point I'll attach a photo and the design of my stands which were made to those criteria and rules except I was able to buy the materials at the time.听 They took me a couple of hours to make and are pretty simple.
I know this will favour those with bigger scrap piles, but that needn't stop you from treating it like an exercise in survival skills, having to make-do.听
Hopefully someone will do an even simpler design, and one for swivel-based saws too.
In the end we'll have fun and there will be new designs of neat stuff to build.
Who could ask for more? A bottle of Corona to celebrate? - jv

Re: Motor capacitor

#15061

开云体育

RF Wrote, 鈥�Is it possible motor inner core or wiring problem? sometimes wiring will be the problem cause鈥�

It is possible, but it is far less likely.

听

OUR EMAIL ADDRESSES HAVE CHANGED

We were xxxxx@vertivCO.com and we are now xxxxx@...

听

听

CONFIDENTIALITY NOTICE: This e-mail and any files transmitted with it are intended solely for the use of the individual or entity to whom they are addressed and may contain confidential and privileged information protected by law. If you received this e-mail in error, any review, use, dissemination, distribution, or copying of the e-mail is strictly prohibited. Please notify the sender immediately by return e-mail and delete all copies from your system.

Hello Everyone in this group #3024-0030

#15060

Hi, Just new here, say hello to everyone!!

Hello Everyone in this group

#15059

Hi, Every one here, I am new here

Re: Motor capacitor

#15058

Hi, Is it possible motor inner core or wiring problem? sometimes wiring will be the problem cause

Re: Saying Hello

#15057

开云体育

Welcome!

Considering the situation鈥�.I hope you have a welder, and a lathe, and a mill鈥�.and a big pile of metal to cut up with your saw, and build something!

听

馃槉

Bill

听

Sent from for Windows 10

听

Show quoted text

From: abnersadik96@...
Sent: Wednesday, April 22, 2020 8:17 AM
To: [email protected]
Subject: [4x6bandsaw] Saying Hello

听

Hi everyone.听
I am new to the group and I hope everyone is staying safe.

听

Saying Hello

[email protected]

#15056

Hi everyone.听
I am new to the group and I hope everyone is staying safe.

Re: [ExternalEmail] Re: [4x6bandsaw] Motor capacitor

#15055

开云体育

That you are actually able to get any thing done right now, things being what they are, is fairly amazing.

听

OUR EMAIL ADDRESSES HAVE CHANGED

We were xxxxx@vertivCO.com and we are now xxxxx@...

听

听

Show quoted text

From: [email protected] [mailto:[email protected]] On Behalf Of Jerry Durand
Sent: Monday, April 20, 2020 3:41 PM
To: [email protected]
Subject: Re: [ExternalEmail] Re: [4x6bandsaw] Motor capacitor

听

Duh, right.听 Sorry about that, busy with other things and got my mental wires crossed.听 Been dealing with 380 WYE for our new house along with the roof, concrete, etc. and getting tired.

On 4/20/20 3:38 PM, Jim.Klessig@... wrote:

That comes from a 480System,听 277 is the Phase to neutral voltage of a nominal 480V Ph-Ph 3 phase system.

The N-鈥渉ot leg鈥� voltage of a hot leg delta is 听207.8 V

听

OUR EMAIL ADDRESSES HAVE CHANGED

We were xxxxx@vertivCO.com and we are now xxxxx@...

听

听

R James (Jim) Klessig P.E. | Senior Power Systems Engineer |
Electrical Reliability Services, VERTIV
jim.klessig@..., jim_klessig@...
1876 Gwin Rd, Mckinleyville | CA | 95519 | USA
| Cell (707) 497-9611 | eFax 614-410-0653

听

--

Jerry Durand, Durand Interstellar, Inc. +1 408-356-3886

听

CONFIDENTIALITY NOTICE: This e-mail and any files transmitted with it are intended solely for the use of the individual or entity to whom they are addressed and may contain confidential and privileged information protected by law. If you received this e-mail in error, any review, use, dissemination, distribution, or copying of the e-mail is strictly prohibited. Please notify the sender immediately by return e-mail and delete all copies from your system.

Re: [ExternalEmail] Re: [4x6bandsaw] Motor capacitor

#15054

开云体育

Duh, right.听 Sorry about that, busy with other things and got my mental wires crossed.听 Been dealing with 380 WYE for our new house along with the roof, concrete, etc. and getting tired.

On 4/20/20 3:38 PM, Jim.Klessig@... wrote:

That comes from a 480System,听 277 is the Phase to neutral voltage of a nominal 480V Ph-Ph 3 phase system.

The N-鈥渉ot leg鈥� voltage of a hot leg delta is 听207.8 V

听

OUR EMAIL ADDRESSES HAVE CHANGED

We were xxxxx@vertivCO.com and we are now xxxxx@...

听

听

R James (Jim) Klessig P.E. | Senior Power Systems Engineer |
Electrical Reliability Services, VERTIV
jim.klessig@..., jim_klessig@...
1876 Gwin Rd, Mckinleyville | CA | 95519 | USA
| Cell (707) 497-9611 | eFax 614-410-0653

-- 
Jerry Durand, Durand Interstellar, Inc. +1 408-356-3886
 &

Re: [ExternalEmail] Re: [4x6bandsaw] Motor capacitor

#15053

开云体育

That comes from a 480System,听 277 is the Phase to neutral voltage of a nominal 480V Ph-Ph 3 phase system.

The N-鈥渉ot leg鈥� voltage of a hot leg delta is 听207.8 V

听

OUR EMAIL ADDRESSES HAVE CHANGED

We were xxxxx@vertivCO.com and we are now xxxxx@...

听

听

Show quoted text

From: [email protected] [mailto:[email protected]] On Behalf Of Jerry Durand
Sent: Monday, April 20, 2020 3:31 PM
To: [email protected]
Subject: Re: [ExternalEmail] Re: [4x6bandsaw] Motor capacitor

听

That's where 277V lighting comes from in commercial buildings, if you ever wondered why a ballast often says it's good up to 277V.

On 4/20/20 3:19 PM, Jim.Klessig@... wrote:

If you are on a 鈥渉ot leg delta鈥� system, if you are connected to the Split phase leg, it is the same as a residential split phase, if however you are on either of the other two legs, then the 鈥渃ommon point鈥� 听will be near 听120V from the neutral (at 60 degree phase shift from the closer hot pole).

Hot-leg Delta systems are not that uncommon is small commercial/industrial spaces in some parts of the US.

听

--

Jerry Durand, Durand Interstellar, Inc. +1 408-356-3886

听

CONFIDENTIALITY NOTICE: This e-mail and any files transmitted with it are intended solely for the use of the individual or entity to whom they are addressed and may contain confidential and privileged information protected by law. If you received this e-mail in error, any review, use, dissemination, distribution, or copying of the e-mail is strictly prohibited. Please notify the sender immediately by return e-mail and delete all copies from your system.

Re: [ExternalEmail] Re: [4x6bandsaw] Motor capacitor

#15052

开云体育

That's where 277V lighting comes from in commercial buildings, if you ever wondered why a ballast often says it's good up to 277V.

On 4/20/20 3:19 PM, Jim.Klessig@... wrote:

If you are on a 鈥渉ot leg delta鈥� system, if you are connected to the Split phase leg, it is the same as a residential split phase, if however you are on either of the other two legs, then the 鈥渃ommon point鈥� 听will be near 听120V from the neutral (at 60 degree phase shift from the closer hot pole).
Hot-leg Delta systems are not that uncommon is small commercial/industrial spaces in some parts of the US.

听

-- 
Jerry Durand, Durand Interstellar, Inc. +1 408-356-3886
 &

Re: [ExternalEmail] Re: [4x6bandsaw] Motor capacitor

#15051

开云体育

鈥�In this country, it is usually either relatively difficult or just impossible to get 3-phase power into an existing house.听鈥�

Truth, but shouldn鈥檛 be.

听

鈥淭he guy didn鈥檛 say another word, just hung up on me.鈥�

He didn鈥檛 laugh first??

听

But seriously, it IS expensive, especially the way a utility choses to calculate their costs.

Unless the three phase is present at your pole (or UG service) the cost to pull another wire (reconfiguring each pole for this) from possibly two or three different circuits, Plus the cost of a new 3 phase transformer, really is expensive in engineering hours, installation manhours and equipment costs.

听

鈥� They are using the two run windings to generate an artificial Neutral.鈥�

That really REALLY isn鈥檛 the case. 听It is more of a safety and terminology thing.

That 鈥渃ommon point鈥� that gets created, will be sort of 鈥渘ear鈥� neutral鈥檚 potential, but is not and cannot be considered 鈥渁 Neutral鈥�.

{Neutral has a specific meaning, of an intentionally and permanently grounded circuit conductor.}

听

And if it IS a 3 phase Y service, that point will not be all that close to neutral either.

It will be roughly 104V from either 鈥淗ot鈥�, but 60V from actual neutral and ground (and at 90 deg. in phase shift from the 208)

听

If you are on a 鈥渉ot leg delta鈥� system, if you are connected to the Split phase leg, it is the same as a residential split phase, if however you are on either of the other two legs, then the 鈥渃ommon point鈥� 听will be near 听120V from the neutral (at 60 degree phase shift from the closer hot pole).

Hot-leg Delta systems are not that uncommon is small commercial/industrial spaces in some parts of the US.

听

听

CONFIDENTIALITY NOTICE: This e-mail and any files transmitted with it are intended solely for the use of the individual or entity to whom they are addressed and may contain confidential and privileged information protected by law. If you received this e-mail in error, any review, use, dissemination, distribution, or copying of the e-mail is strictly prohibited. Please notify the sender immediately by return e-mail and delete all copies from your system.

Re: Motor capacitor

#15050

开云体育

I was mostly referring to the common 听US residential standard only, which is 120/240 single phase.听 In this country, it is usually either relatively difficult or just impossible to get 3-phase power into an existing house.听 Years ago, I called HL&P (known colloquially as Houston Looting & Pillage) and asked what it would take to get a 3-phase wye connection added to my house.听 The guy didn鈥檛 say another word, just hung up on me.

听

Anyway, the connections shown below are the only way that would work with a 3-phase Delta connection which should have a Ground but has no Neutral.听 They are using the two run windings to generate an artificial Neutral.听 But for single-phase 120/240 or 3-phase 120/208 Wye , the way that I described is the safer way to hook the motor up.听 And is the only way to deliver a full 120 VAC RMS to the start circuit.听 But it isn鈥檛 actually required for it to work with only the one motor on the circuit..

Robert Downs

听

Show quoted text

From: [email protected] [mailto:[email protected]] On Behalf Of Jim.Klessig@...
Sent: Monday, April 20, 2020 13:15
To: [email protected]
Subject: Re: [4x6bandsaw] Motor capacitor

听

Robert Wrote

鈥� I鈥檒l mention that if the motor is a dual-voltage one (120/240 VAC), there is usually still only one start winding and if the motor is wired up to run off of 240 VAC, the start winding is still running off of 120 VAC (it will be wired line to neutral).听 So the start capacitor range will be the same as shown on the chart for 120 VAC, not 240 VAC听鈥�

听

This isn鈥檛 really the case.听 When operating a Dual rated 120/240 (or 120/208 (in case of a wye source, rather than a typical split phase) there is NO neutral run to the motor, just the two 鈥渉ots鈥� and a ground.听 Attached (Hopefully) are relevant NEMA MG-1 standard terminal markings and wiring for a number of different configurations. Single voltage, dual voltage, Single and dual caps, and Reversible. Mind you cheap import motors may, or may not,听 follow nema standards.

听

听

CONFIDENTIALITY NOTICE: This e-mail and any files transmitted with it are intended solely for the use of the individual or entity to whom they are addressed and may contain confidential and privileged information protected by law. If you received this e-mail in error, any review, use, dissemination, distribution, or copying of the e-mail is strictly prohibited. Please notify the sender immediately by return e-mail and delete all copies from your system.

Re: Motor capacitor

#15049

开云体育

鈥淚 always feel it should be said that motors with auto reset thermal protectors (common on furnace blower motors, etc) should NOT be used on power tools unless the protector is jumpered or replaced with a manual type (typically with a red button).鈥�

听

That I fully agree with.

听

听

CONFIDENTIALITY NOTICE: This e-mail and any files transmitted with it are intended solely for the use of the individual or entity to whom they are addressed and may contain confidential and privileged information protected by law. If you received this e-mail in error, any review, use, dissemination, distribution, or copying of the e-mail is strictly prohibited. Please notify the sender immediately by return e-mail and delete all copies from your system.

Re: Motor capacitor

#15048

Reversible dual voltage motors with thermal protectors get complicated, at least to me.听 But capacitor motors tend not to be terrifically fussy about the value of the capacitor.听 Most fractional hp motors will start with a cap of a couple of hundred mFD, though the starting torque will be influenced.听听 The voltage the cap sees will vary with the design of the motor and isn't necessarily related to the supply voltage.

I always feel it should be said that motors with auto reset thermal protectors (common on furnace blower motors, etc) should NOT be used on power tools unless the protector is jumpered or replaced with a manual type (typically with a red button).

am

At 06:15 PM 4/20/2020 +0000, you wrote:

Show quoted text

Robert Wrote
� I抣l mention that if the motor is a dual-voltage one (120/240 VAC), there is usually still only one start winding and if the motor is wired up to run off of 240 VAC, the start winding is still running off of 120 VAC (it will be wired line to neutral).听 So the start capacitor range will be the same as shown on the chart for 120 VAC, not 240 VAC. �
听
This isn抰 really the case.听 When operating a Dual rated 120/240 (or 120/208 (in case of a wye source, rather than a typical split phase) there is NO neutral run to the motor, just the two 揾ots� and a ground.听 Attached (Hopefully) are relevant NEMA MG-1 standard terminal markings and wiring for a number of different configurations. Single voltage, dual voltage, Single and dual caps, and Reversible. Mind you cheap import motors may, or may not,听 follow nema standards.
听
听
听
听
听
R James (Jim) Klessig P.E. | Senior Power Systems Engineer |
Electrical Reliability Services, VERTIV
jim.klessig@... , jim_klessig@...
1876 Gwin Rd, Mckinleyville | CA | 95519 | USA
| Cell (707) 497-9611 | eFax 614-410-0653
听
听
CONFIDENTIALITY NOTICE: This e-mail and any files transmitted with it are intended solely for the use of the individual or entity to whom they are addressed and may contain confidential and privileged information protected by law. If you received this e-mail in error, any review, use, dissemination, distribution, or copying of the e-mail is strictly prohibited. Please notify the sender immediately by return e-mail and delete all copies from your system.

Re: Motor capacitor

#15047

开云体育

Robert Wrote

鈥� I鈥檒l mention that if the motor is a dual-voltage one (120/240 VAC), there is usually still only one start winding and if the motor is wired up to run off of 240 VAC, the start winding is still running off of 120 VAC (it will be wired line to neutral).听 So the start capacitor range will be the same as shown on the chart for 120 VAC, not 240 VAC.听鈥�

听

This isn鈥檛 really the case.听 When operating a Dual rated 120/240 (or 120/208 (in case of a wye source, rather than a typical split phase) there is NO neutral run to the motor, just the two 鈥渉ots鈥� and a ground.听 Attached (Hopefully) are relevant NEMA MG-1 standard terminal markings and wiring for a number of different configurations. Single voltage, dual voltage, Single and dual caps, and Reversible. Mind you cheap import motors may, or may not,听 follow nema standards.

听

听

CONFIDENTIALITY NOTICE: This e-mail and any files transmitted with it are intended solely for the use of the individual or entity to whom they are addressed and may contain confidential and privileged information protected by law. If you received this e-mail in error, any review, use, dissemination, distribution, or copying of the e-mail is strictly prohibited. Please notify the sender immediately by return e-mail and delete all copies from your system.