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Re: Making an ER40 Collet Chuck
开云体育Thanks GP,? Yes I bought the nut already.? That is the drawing I have from either you or Steve Haskill. -Jody Sent via the Samsung Galaxy S10+, an AT&T 5G Evolution capable smartphone -------- Original message -------- From: Guenther Paul <paulguenter@...> Date: 4/23/20 4:00 PM (GMT-06:00) Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck This is for the collet chuck maker. I would buy the front nut. GP
On Thursday, April 23, 2020, 4:38:15 PM EDT, Andrei <calciu1@...> wrote:
Oops. forgot about the collets being hardened and the cast iron, vastly less so. Thanks?GP
From: [email protected] <[email protected]> on behalf of Guenther Paul <paulguenter@...>
Sent: Thursday, April 23, 2020 4:34 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck ?
A collet chuck needs to be made from tool steel not cast iron. The collet will dig in to the cast iron. Its a no no
GP
On Thursday, April 23, 2020, 4:16:05 PM EDT, Andrei <calciu1@...> wrote:
1 foot long piece of 4.25" cast iron is 106 bucks at mcmaster. yuo need this diameter to finish at 100mm for your chuck.
1144 is only available in 3" max diameter, so your options may be limited in using this.?
From: [email protected] <[email protected]> on behalf of Andrei <calciu1@...>
Sent: Thursday, April 23, 2020 4:07 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck ?
Cast iron is always a good (but messy) option. You can order a slice of various diameters from McMaster Carr. This is a company that never disappoints, until your check your bill
?. Their products are top notch, selections are wide and deep and they are delivered quickly. The prices match the quality of product and service. I have never hesitated buying from them.?
Best Regards,
Andrei D. Calciu 6371 Birch Leaf Court Burke, VA 22015-3528 USA ? 703-995-4822 (landline and Fax) 571-436-0169 (mobile) mailto:calciu1@... ? ? From: [email protected] <[email protected]> on behalf of kaje7777 <kevin.quiggle@...>
Sent: Thursday, April 23, 2020 4:00 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck ?
Jody - Regarding your question about stainless for your project: I have not had much experience working with stainless, but what little I have had has all been bad. This may say more about my fairly limited machining experience than anything else, but
I found work hardening to be a real problem.
Take a look at this chart for some idea of how easy it is to machine various metals: You might consider 1144 stressproof. You can look up various alloys on SpeedyMetals and get more information on typical uses. https://www.speedymetals.com/s-108-cold-finished.aspx |
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Re: Making an ER40 Collet Chuck
Jody, 12L14 is leaded, and can't be hardened. More or less. You can case harden it, but the metal under the case will remain relatively soft. Where using it is a benefit is in ease of machining. If you're not a professional machinist, you could use it, and it might last all your life and still be good for your heirs, 4140 is an ordinance steel, and it can be annealed or hard when you buy it. Hard is tougher to machine, but wouldn't need to be hardened after machining. Annealed you could get away without hardening, but if GP's offering to walk you through it, I'd take him up on the offer. You could use the heck out of it, AND hand it down in like-new condition. And learn some fun and useful stuff while you're making it. Bill in OKC William R. Meyers, MSgt, USAF(Ret.) A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects. LAZARUS LONG (Robert A. Heinlein) On Thursday, April 23, 2020, 04:00:19 PM CDT, Jody <jp4lsu@...> wrote: GP, What about 12L14 or 4140??? They are good carbon steels, but I'm not sure if they would be hard enough. -Jody On Thu, Apr 23, 2020 at 3:34 PM Guenther Paul <paulguenter@...> wrote:
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Re: Making an ER40 Collet Chuck
On Thu, Apr 23, 2020 at 12:54 PM, William Nelson wrote:
I'm not getting why you would make a 2 piece chuck body with a adjust-tru feature. If it's one piece when it's mounted to your spindle and then the inside is machined to the collet taper it would seem that is the best it can get. There will be variables as the spindle is not adjusted properly or has some other deviation. The collets themselves will add a slight bit of run out but you can adjust for every collet you use. So a one piece body with careful machining and perhaps grinding seem to be the best you can get. Am I missing something?I agree.? The benefit of the set-tru feature is that it allows one to easily correct for inaccuracies introduced by the collet nut and also the collets themselves.? My set of 5C's vary +/- 0.0004", which is a lot if you're using the collet chuck for multiple operations.? The only downside for us hobbyists?with smaller lathes is the set-true feature moves you further away from the spindle nose. I suppose you could machine a backplate with enough slop to allow for adjustments, but you don't get the benefit of the four positioning screws which allow for easy, precise adjustments. Just one opinion, however. |
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Re: Making an ER40 Collet Chuck
Jody? ?4140 is fine? if you are planing to take it to a heat treat place GP
On Thursday, April 23, 2020, 5:00:20 PM EDT, Jody <jp4lsu@...> wrote:
GP, What about 12L14 or 4140??? They are good carbon steels, but I'm not sure if they would be hard enough. -Jody On Thu, Apr 23, 2020 at 3:34 PM Guenther Paul <paulguenter@...> wrote:
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Re: Making an ER40 Collet Chuck
This is for the collet chuck maker. I would buy the front nut. GP
On Thursday, April 23, 2020, 4:38:15 PM EDT, Andrei <calciu1@...> wrote:
Oops. forgot about the collets being hardened and the cast iron, vastly less so. Thanks?GP
From: [email protected] <[email protected]> on behalf of Guenther Paul <paulguenter@...>
Sent: Thursday, April 23, 2020 4:34 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck ?
A collet chuck needs to be made from tool steel not cast iron. The collet will dig in to the cast iron. Its a no no
GP
On Thursday, April 23, 2020, 4:16:05 PM EDT, Andrei <calciu1@...> wrote:
1 foot long piece of 4.25" cast iron is 106 bucks at mcmaster. yuo need this diameter to finish at 100mm for your chuck.
1144 is only available in 3" max diameter, so your options may be limited in using this.?
From: [email protected] <[email protected]> on behalf of Andrei <calciu1@...>
Sent: Thursday, April 23, 2020 4:07 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck ?
Cast iron is always a good (but messy) option. You can order a slice of various diameters from McMaster Carr. This is a company that never disappoints, until your check your bill
?. Their products are top notch, selections are wide and deep and they are delivered quickly. The prices match the quality of product and service. I have never hesitated buying from them.?
Best Regards,
Andrei D. Calciu 6371 Birch Leaf Court Burke, VA 22015-3528 USA ? 703-995-4822 (landline and Fax) 571-436-0169 (mobile) mailto:calciu1@... ? ? From: [email protected] <[email protected]> on behalf of kaje7777 <kevin.quiggle@...>
Sent: Thursday, April 23, 2020 4:00 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck ?
Jody - Regarding your question about stainless for your project: I have not had much experience working with stainless, but what little I have had has all been bad. This may say more about my fairly limited machining experience than anything else, but
I found work hardening to be a real problem.
Take a look at this chart for some idea of how easy it is to machine various metals: You might consider 1144 stressproof. You can look up various alloys on SpeedyMetals and get more information on typical uses. https://www.speedymetals.com/s-108-cold-finished.aspx |
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Re: Making an ER40 Collet Chuck
A collet chuck needs a hardened surface where the collet"s contact the taper of the chuck. You can use a oil hardening steel or water hardening. Make sure you do it properly and watch the colors of the steel when you dunk it in. I can walk you thru the process but i need to know the type of steel GP
On Thursday, April 23, 2020, 4:38:15 PM EDT, Andrei <calciu1@...> wrote:
Oops. forgot about the collets being hardened and the cast iron, vastly less so. Thanks?GP
From: [email protected] <[email protected]> on behalf of Guenther Paul <paulguenter@...>
Sent: Thursday, April 23, 2020 4:34 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck ?
A collet chuck needs to be made from tool steel not cast iron. The collet will dig in to the cast iron. Its a no no
GP
On Thursday, April 23, 2020, 4:16:05 PM EDT, Andrei <calciu1@...> wrote:
1 foot long piece of 4.25" cast iron is 106 bucks at mcmaster. yuo need this diameter to finish at 100mm for your chuck.
1144 is only available in 3" max diameter, so your options may be limited in using this.?
From: [email protected] <[email protected]> on behalf of Andrei <calciu1@...>
Sent: Thursday, April 23, 2020 4:07 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck ?
Cast iron is always a good (but messy) option. You can order a slice of various diameters from McMaster Carr. This is a company that never disappoints, until your check your bill
?. Their products are top notch, selections are wide and deep and they are delivered quickly. The prices match the quality of product and service. I have never hesitated buying from them.?
Best Regards,
Andrei D. Calciu 6371 Birch Leaf Court Burke, VA 22015-3528 USA ? 703-995-4822 (landline and Fax) 571-436-0169 (mobile) mailto:calciu1@... ? ? From: [email protected] <[email protected]> on behalf of kaje7777 <kevin.quiggle@...>
Sent: Thursday, April 23, 2020 4:00 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck ?
Jody - Regarding your question about stainless for your project: I have not had much experience working with stainless, but what little I have had has all been bad. This may say more about my fairly limited machining experience than anything else, but
I found work hardening to be a real problem.
Take a look at this chart for some idea of how easy it is to machine various metals: You might consider 1144 stressproof. You can look up various alloys on SpeedyMetals and get more information on typical uses. https://www.speedymetals.com/s-108-cold-finished.aspx |
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Re: Making an ER40 Collet Chuck
GP, What about 12L14 or 4140??? They are good carbon steels, but I'm not sure if they would be hard enough. -Jody On Thu, Apr 23, 2020 at 3:34 PM Guenther Paul <paulguenter@...> wrote:
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Re: Making an ER40 Collet Chuck
开云体育
Oops. forgot about the collets being hardened and the cast iron, vastly less so. Thanks?GP
From: [email protected] <[email protected]> on behalf of Guenther Paul <paulguenter@...>
Sent: Thursday, April 23, 2020 4:34 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck ?
A collet chuck needs to be made from tool steel not cast iron. The collet will dig in to the cast iron. Its a no no
GP
On Thursday, April 23, 2020, 4:16:05 PM EDT, Andrei <calciu1@...> wrote:
1 foot long piece of 4.25" cast iron is 106 bucks at mcmaster. yuo need this diameter to finish at 100mm for your chuck.
1144 is only available in 3" max diameter, so your options may be limited in using this.?
From: [email protected] <[email protected]> on behalf of Andrei <calciu1@...>
Sent: Thursday, April 23, 2020 4:07 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck ?
Cast iron is always a good (but messy) option. You can order a slice of various diameters from McMaster Carr. This is a company that never disappoints, until your check your bill
?. Their products are top notch, selections are wide and deep and they are delivered quickly. The prices match the quality of product and service. I have never hesitated buying from them.?
Best Regards,
Andrei D. Calciu 6371 Birch Leaf Court Burke, VA 22015-3528 USA ? 703-995-4822 (landline and Fax) 571-436-0169 (mobile) mailto:calciu1@... ? ? From: [email protected] <[email protected]> on behalf of kaje7777 <kevin.quiggle@...>
Sent: Thursday, April 23, 2020 4:00 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck ?
Jody - Regarding your question about stainless for your project: I have not had much experience working with stainless, but what little I have had has all been bad. This may say more about my fairly limited machining experience than anything else, but
I found work hardening to be a real problem.
Take a look at this chart for some idea of how easy it is to machine various metals: You might consider 1144 stressproof. You can look up various alloys on SpeedyMetals and get more information on typical uses. https://www.speedymetals.com/s-108-cold-finished.aspx |
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Re: Making an ER40 Collet Chuck
William, we both have the same thought, if you have something that is "adjustable" than it can get out of adjustment. A solid piece bored out and threaded, done on your lathe will always match your lathe, might need an orientation indicator. Ralph On Thu, Apr 23, 2020 at 4:16 PM Andrei <calciu1@...> wrote:
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Re: Making an ER40 Collet Chuck
A collet chuck needs to be made from tool steel not cast iron. The collet will dig in to the cast iron. Its a no no GP
On Thursday, April 23, 2020, 4:16:05 PM EDT, Andrei <calciu1@...> wrote:
1 foot long piece of 4.25" cast iron is 106 bucks at mcmaster. yuo need this diameter to finish at 100mm for your chuck.
1144 is only available in 3" max diameter, so your options may be limited in using this.?
From: [email protected] <[email protected]> on behalf of Andrei <calciu1@...>
Sent: Thursday, April 23, 2020 4:07 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck ?
Cast iron is always a good (but messy) option. You can order a slice of various diameters from McMaster Carr. This is a company that never disappoints, until your check your bill
?. Their products are top notch, selections are wide and deep and they are delivered quickly. The prices match the quality of product and service. I have never hesitated buying from them.?
Best Regards,
Andrei D. Calciu 6371 Birch Leaf Court Burke, VA 22015-3528 USA ? 703-995-4822 (landline and Fax) 571-436-0169 (mobile) mailto:calciu1@... ? ? From: [email protected] <[email protected]> on behalf of kaje7777 <kevin.quiggle@...>
Sent: Thursday, April 23, 2020 4:00 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck ?
Jody - Regarding your question about stainless for your project: I have not had much experience working with stainless, but what little I have had has all been bad. This may say more about my fairly limited machining experience than anything else, but
I found work hardening to be a real problem.
Take a look at this chart for some idea of how easy it is to machine various metals: You might consider 1144 stressproof. You can look up various alloys on SpeedyMetals and get more information on typical uses. https://www.speedymetals.com/s-108-cold-finished.aspx |
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Re: Making an ER40 Collet Chuck
开云体育
1 foot long piece of 4.25" cast iron is 106 bucks at mcmaster. yuo need this diameter to finish at 100mm for your chuck.
1144 is only available in 3" max diameter, so your options may be limited in using this.?
From: [email protected] <[email protected]> on behalf of Andrei <calciu1@...>
Sent: Thursday, April 23, 2020 4:07 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck ?
Cast iron is always a good (but messy) option. You can order a slice of various diameters from McMaster Carr. This is a company that never disappoints, until your check your bill
?. Their products are top notch, selections are wide and deep and they are delivered quickly. The prices match the quality of product and service. I have never hesitated buying from them.?
Best Regards,
Andrei D. Calciu 6371 Birch Leaf Court Burke, VA 22015-3528 USA ? 703-995-4822 (landline and Fax) 571-436-0169 (mobile) mailto:calciu1@... ? ? From: [email protected] <[email protected]> on behalf of kaje7777 <kevin.quiggle@...>
Sent: Thursday, April 23, 2020 4:00 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck ?
Jody - Regarding your question about stainless for your project: I have not had much experience working with stainless, but what little I have had has all been bad. This may say more about my fairly limited machining experience than anything else, but
I found work hardening to be a real problem.
Take a look at this chart for some idea of how easy it is to machine various metals: You might consider 1144 stressproof. You can look up various alloys on SpeedyMetals and get more information on typical uses. https://www.speedymetals.com/s-108-cold-finished.aspx |
|
Re: Making an ER40 Collet Chuck
开云体育
Cast iron is always a good (but messy) option. You can order a slice of various diameters from McMaster Carr. This is a company that never disappoints, until your check your bill
?. Their products are top notch, selections are wide and deep and they are delivered quickly. The prices match the quality of product and service. I have never hesitated buying from them.?
Best Regards,
Andrei D. Calciu 6371 Birch Leaf Court Burke, VA 22015-3528 USA ? 703-995-4822 (landline and Fax) 571-436-0169 (mobile) mailto:calciu1@... ? ? From: [email protected] <[email protected]> on behalf of kaje7777 <kevin.quiggle@...>
Sent: Thursday, April 23, 2020 4:00 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck ?
Jody - Regarding your question about stainless for your project: I have not had much experience working with stainless, but what little I have had has all been bad. This may say more about my fairly limited machining experience than anything else, but
I found work hardening to be a real problem. Take a look at this chart for some idea of how easy it is to machine various metals: You might consider 1144 stressproof. You can look up various alloys on SpeedyMetals and get more information on typical uses. https://www.speedymetals.com/s-108-cold-finished.aspx |
|
Re: Making an ER40 Collet Chuck
Jody - Regarding your question about stainless for your project: I have not had much experience working with stainless, but what little I have had has all been bad. This may say more about my fairly limited machining experience than anything else, but I found work hardening to be a real problem.
Take a look at this chart for some idea of how easy it is to machine various metals: You might consider 1144 stressproof. You can look up various alloys on SpeedyMetals and get more information on typical uses. https://www.speedymetals.com/s-108-cold-finished.aspx |
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Re: Making an ER40 Collet Chuck
I'm not getting why you would make a 2 piece chuck body with a adjust-tru feature. If it's one piece when it's mounted to your spindle and then the inside is machined to the collet taper it would seem that is the best it can get. There will be variables as the spindle is not adjusted properly or has some other deviation. The collets themselves will add a slight bit of run out but you can adjust for every collet you use. So a one piece body with careful machining and perhaps grinding seem to be the best you can get. Am I missing something??
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Re: Making an ER40 Collet Chuck
I understand wanting the pass thru. Jody you will certainly get lots of experience there are a number of piece all of which need to fit correctly. On Thu, Apr 23, 2020 at 3:16 PM Jody <jp4lsu@...> wrote:
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Re: Making an ER40 Collet Chuck
开云体育Ralph , I would like to have the pass thru capability which is i Why I'm going to make an adaptor.? Plus for the experience. -Jody (DFW) Sent via the Samsung Galaxy S10+, an AT&T 5G Evolution capable smartphone -------- Original message -------- From: Ralph Hulslander <rhulslander@...> Date: 4/23/20 2:01 PM (GMT-06:00) Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck Why bother with adjustments? I like the ?no adjustment?needed. Ralph On Thu, Apr 23, 2020 at 2:37 PM Jody <jp4lsu@...> wrote:
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Re: Making an ER40 Collet Chuck
开云体育
It all depends on what you make with it. For our daily hobby things, pretty much anything works just fine. For NASA, different story, and many shades in between.?
On the chuck you showed, you lose the most important advantage: being able to feed stock though the chuck because the 3MT taper arbor fills out the through-spindle hole. That might work fine for hobby work.?
You are starting to get the trend? Everything is shades of grey and what might work for some may not work for others.?
Andrei
From: [email protected] <[email protected]> on behalf of Ralph Hulslander <rhulslander@...>
Sent: Thursday, April 23, 2020 3:00 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck ?
Why bother with adjustments? I like the ?no adjustment?needed.
Ralph
On Thu, Apr 23, 2020 at 2:37 PM Jody <jp4lsu@...> wrote:
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Re: Making an ER40 Collet Chuck
Why bother with adjustments? I like the ?no adjustment?needed. Ralph On Thu, Apr 23, 2020 at 2:37 PM Jody <jp4lsu@...> wrote:
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Re: Making an ER40 Collet Chuck
开云体育Thanks for the explanation Andrei.? I knew there were chucks with those true features.? I don't think I've seen a collet chuck with the feature. So basically you have a 2 piece collet chuck.? One (adaptor) that goes on spindle then the actual chuck that can be adjusted? on the adaptor. -Jody Sent via the Samsung Galaxy S10+, an AT&T 5G Evolution capable smartphone 开云体育-------- Original message -------- From: Andrei <calciu1@...> Date: 4/23/20 12:22 PM (GMT-06:00) Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck
Jody,
the set-true feature is like a 4-jaw chuck adjustment, but at the chuck/plate connection, instead of the chuck jaws.?
It is comprised of 4 set-screws located at 90 degrees from each other. They screw in from the outside of the chuck and they press on the registration boss on the adapter plate. Effectively, they allow you to indicate your chuck while attached to the spindle.
once your indicator is close to perfect, you tighten the mounting bolts and you are done.
You can make your first chuck without this feature. Just machine the adapter plate as per instructions (usually, skim the faces of the registration boss and backing surface, the same amount!), drill the mounting holes, install the ER40 chuck and you are done.?
You can always add the set-true feature later, if you want to have a simpler project to start with.?
From: [email protected] <[email protected]> on behalf of Jody <jp4lsu@...>
Sent: Thursday, April 23, 2020 12:48 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck ?
Thanks Bill, I'm not familiar with that feature.? I'll check out the link
-Jody
Sent via the Samsung Galaxy S10+, an AT&T 5G Evolution capable smartphone
-------- Original message --------
From: "Bill Buckalew via groups.io" <bill70j@...>
Date: 4/23/20 11:31 AM (GMT-06:00)
Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck
Not sure if you're considering building a "set-tru" feature into your ER40 chuck, but if you are, with drawings for doing so. I used the drawings for building a "set-tru" 5C collet chuck, and it turned out pretty well.? Bill |
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Re: Making an ER40 Collet Chuck
开云体育
Jody,
the set-true feature is like a 4-jaw chuck adjustment, but at the chuck/plate connection, instead of the chuck jaws.?
It is comprised of 4 set-screws located at 90 degrees from each other. They screw in from the outside of the chuck and they press on the registration boss on the adapter plate. Effectively, they allow you to indicate your chuck while attached to the spindle.
once your indicator is close to perfect, you tighten the mounting bolts and you are done.
You can make your first chuck without this feature. Just machine the adapter plate as per instructions (usually, skim the faces of the registration boss and backing surface, the same amount!), drill the mounting holes, install the ER40 chuck and you are done.?
You can always add the set-true feature later, if you want to have a simpler project to start with.?
From: [email protected] <[email protected]> on behalf of Jody <jp4lsu@...>
Sent: Thursday, April 23, 2020 12:48 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck ?
Thanks Bill, I'm not familiar with that feature.? I'll check out the link
-Jody
Sent via the Samsung Galaxy S10+, an AT&T 5G Evolution capable smartphone
-------- Original message --------
From: "Bill Buckalew via groups.io" <bill70j@...>
Date: 4/23/20 11:31 AM (GMT-06:00)
Subject: Re: [atlas-craftsman IO] Making an ER40 Collet Chuck
Not sure if you're considering building a "set-tru" feature into your ER40 chuck, but if you are, with drawings for doing so. I used the drawings for building a "set-tru" 5C collet chuck, and it turned out pretty well.? Bill |
Bill in OKC too
Bill Buckalew
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