Am I crazy?
Too big for my 7x16?
I need just to cut/grind/polish the outer surface so it looks nice.
I think it has been a 2¡± axel , see the key slot. Weight 3.5 kg.
High carbon steel ?
I cut it with an angle grinder: the sparks had a star in the end.
Johannes Lavoll.
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Re: $1000 Budget: Which 7 x 14 to buy?
The DRO'S are great but they will skip?
I like them using on the carriage but not the cross-slide.? If DRO'S skip on a bearing bore you would scrap the part.?
I would use a dial indicator for cross-slide to avoid skipping.?
Dave?
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Re: LittleMachines DROs and dials
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Re: LittleMachines DROs and dials
Here photo of two I use most. No errors Dave? 
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Re: LittleMachines DROs and dials
That is why I dial indicators with 1 to 2 inch [25 to 50mm] stroke.?
It also takes care of DRO skipping too.?
Dave?
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Ralph Lehotsky 11:22am? ?
DROs on dials don't take out backlash. If you are thinking about DROs, attach them to fixed surfaces in order to get true readings.
?
Ralphie
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Re: LittleMachines DROs and dials
DROs on dials don't take out backlash.? If you are thinking about DROs, attach them to fixed surfaces in order to get true readings.
?
Ralphie
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Re: LittleMachines DROs and dials
It is best to just get rid of those dial-based DROs. ?They are not as usful as the linear ones. ?The dail-based DROs don¡¯t measure backlash
I think the best solution for DRO power is wired.
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On Feb 19, 2024, at 10:40?AM, Peter Way <poogleway@...> wrote:
I have a Littlemachines lathe with really awful DROs.? ?They use V389 batteries that last about a minute.? ?I have the following questions:
1. I'm working on a 3D printed battery holder that allows a AAA battery instead.? Is anyone else interested in these?
2. As I researched this, I realized that some of you have found linear DROs that may even be better to position the carriage and cross slide.
Can you recommend the best option?? It looks like magnetic ones are good for this application, and some cheap Chinese ones are really capacitive, and not as good.??
3. Have any of you converted from DROs to old fashioned dial handles?? That would be nice in addition, since those don't require any batteries, etc.? I kick myself every time I think about buying the DRO version.
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Re: LittleMachines DROs and dials
¡°In the information society, nobody thinks. We expected to banish paper, but we actually banished thought.¡±
~~ Michael Crichton, Jurassic Park
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On 2/20/2024 5:35 AM, Tony Smith wrote: Yup, they just turn the display off which saves bugger all power. There are some versions of these callipers that DO have very good battery life (like 3-4 years) but good luck finding them.
I¡¯ve never tried a pair, but there are solar powered versions: that aren¡¯t too spendy. Those are steel, you can get the plastic ones as well (I use those near electronics). Mitutoyo make them as well if you do want to spend more, theirs are even dual power battery/solar.
Tony
From: [email protected] <[email protected]> On Behalf Of mike allen
Sent: Tuesday, 20 February 2024 7:39 AM
To: [email protected]
Subject: Re: [7x12MiniLathe] LittleMachines DROs and dials
They don't turn odd when ya hit he switch , they just go to sleep . getting a switch between the batteries & the caliper someway will way improve battery life .
animal
On 2/19/24 11:08 AM, Bruce J wrote:
On Feb 19, 2024, at 11:41 AM, Peter Way <poogleway@... <mailto:poogleway@...> > wrote:
[Edited Message Follows]
I have a Littlemachines lathe with really awful DROs. They use V389 batteries that last about a minute. I have the following questions:
Is there any way of locking them? I have dicovered that my cheap HF digital calipers last a LOT longer on batteries if I carefully tighten the lock screw down after shutting them off. But they¡¯re pretty much sitting on my desk in a pencil holder all the time or in a drawer on my bench, since I discovered that putting them back in the case turned them on constantly.
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Re: $1000 Budget: Which 7 x 14 to buy?
I am just using the dials that came with my Speedway lathe that I bought 20 years ago. I have a 1-inch travel dial indicator that can be moved along the bed and a stop for the carriage that is adjustable. You do need a way to clamp the carriage when making facing cuts. I always manually feed toward the headstock and power feed toward?the tailstock to get a better finish. The compound should be set to 29.5 degrees. John Mattis (retired mechanical engineer)
On Mon, Feb 19, 2024 at 10:55?AM Peter Way < poogleway@...> wrote: I would just be careful not to spring for DROs on the dials.? ?I'm regretting that I bought the LMS machine many years ago with awful DROs.? The chewed batteries.? ?They may be better now.? If I were to do it again, I'd save money by getting mechanical dials and then upgrading to linear DROs if needed.
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Re: making Colchester Lathes
Really enjoyed the video.
The way the world used to work.
8^(
--
Lone Tree, Colorado? ?USA
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Re: LittleMachines DROs and dials
Yup, they just turn the display off which saves bugger all power.? There are some versions of these callipers that DO have very good battery life (like 3-4 years) but good luck finding them. ? I¡¯ve never tried a pair, but there are solar powered versions: that aren¡¯t too spendy.? Those are steel, you can get the plastic ones as well (I use those near electronics).? Mitutoyo make them as well if you do want to spend more, theirs are even dual power battery/solar. ? Tony ? ?
toggle quoted message
Show quoted text
From: [email protected] <[email protected]> On Behalf Of mike allen
Sent: Tuesday, 20 February 2024 7:39 AM
To: [email protected]
Subject: Re: [7x12MiniLathe] LittleMachines DROs and dials? ??? They don't turn odd when ya hit he switch , they just go to sleep . getting a switch between the batteries & the caliper someway will way improve battery life . animal On 2/19/24 11:08 AM, Bruce J wrote: ?
? [Edited Message Follows] I have a Littlemachines lathe with really awful DROs.? ?They use V389 batteries that last about a minute.? ?I have the following questions:
Is there any way of locking them? I have dicovered that my cheap HF digital calipers last a LOT longer on batteries if I carefully tighten the lock screw down after shutting them off. But they¡¯re pretty much sitting on my desk in a pencil holder all the time or in a drawer on my bench, since I discovered that putting them back in the case turned them on constantly. ? "Wherever you go, there you are." B. Banzai, PhD ?
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Re: LittleMachines DROs and dials
Peter Way
10:40am? ?
Edited 10:41am
I have a Littlemachines lathe with really awful DROs. They use V389 batteries that last about a minute. I have the following questions:
1. I'm working on a 3D printed battery holder that allows a AAA battery instead. Is anyone else interested in these
Bad news You buy AAA battery holders from Amazon and Walmart for under package of 4 to 6 $10.00. Some have a on off switch?
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Re: LittleMachines DROs and dials
They had some like for BP mills in the 1960's.?
They did nothing for screw wear in center or nut wear.?
FYI If try adjusting nut wear it would not work because of screw wear.?
Next travel dial They like to skip.?
I think travel dial could work with a using a rake .
I use dial indicators. I have one 2" stroke most time I use 1" stroke works.?
On the mark every time.
Dave?
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Re: Variable speed motors
I have one of his motor/controller running my MicroMark 7x16. The original motor died...feels like one of the magnets dropped out of position. I selected his bare-bones 900W version. Fairly easy to install. I needed to move four holes on the lathe's mounting plate, thank the Lord for the DRO on my mill.? I also had to enlarge the hole on the lower pulley.? That was a challenge reaming it by hand using the un-powered lathe.? Here's a picture of my setup. Regards, Ray 
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Re: LittleMachines DROs and dials
??? They don't turn odd when ya hit he switch , they just go to
sleep . getting a switch between the batteries & the caliper
someway will way improve battery life .
animal
On 2/19/24 11:08 AM, Bruce J wrote:
toggle quoted message
Show quoted text
[Edited Message Follows]
I have a Littlemachines lathe with really awful DROs.? ?They
use V389 batteries that last about a minute.? ?I have the
following questions:
Is there any way of locking them? I have dicovered that my cheap
HF digital calipers last a LOT longer on batteries if I carefully
tighten the lock screw down after shutting them off. But they¡¯re
pretty much sitting on my desk in a pencil holder all the time or
in a drawer on my bench, since I discovered that putting them back
in the case turned them on constantly.
--?
Bruce Johnson
"Wherever you go, there you are." B.
Banzai, PhD
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Re: LittleMachines DROs and dials
[Edited Message Follows]
I have a Littlemachines lathe with really awful DROs.? ?They use V389 batteries that last about a minute.? ?I have the following questions:
Is there any way of locking them? I have dicovered that my cheap HF digital calipers last a LOT longer on batteries if I carefully tighten the lock screw down after shutting them off. But they¡¯re pretty much sitting on my desk in a pencil holder all the time or in a drawer on my bench, since I discovered that putting them back in the case turned them on constantly.
--? Bruce Johnson
"Wherever you go, there you are." B. Banzai, PhD
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Re: $1000 Budget: Which 7 x 14 to buy?
DROs on dials don't take out backlash.? If you are thinking about DROs, attach them to fixed surfaces in order to get true readings.
Ralphie
|
Re: $1000 Budget: Which 7 x 14 to buy?
I would just be careful not to spring for DROs on the dials.? ?I'm regretting that I bought the LMS machine many years ago with awful DROs.? The chewed batteries.? ?They may be better now.? If I were to do it again, I'd save money by getting mechanical dials and then upgrading to linear DROs if needed.
|
LittleMachines DROs and dials
I have a Littlemachines lathe with really awful DROs.? ?They use V389 batteries that last about a minute.? ?I have the following questions:
1. I'm working on a 3D printed battery holder that allows a AAA battery instead.? Is anyone else interested in these?
2. As I researched this, I realized that some of you have found linear DROs that may even be better to position the carriage and cross slide.
Can you recommend the best option?? It looks like magnetic ones are good for this application, and some cheap Chinese ones are really capacitive, and not as good.??
3. Have any of you converted from DROs to old fashioned dial handles?? That would be nice in addition, since those don't require any batteries, etc.? I kick myself every time I think about having bought the DRO version.
|
Johannes
davesmith1800
Ralph Lehotsky
John Mattis