Today's Message Index:
----------------------
1. 10:05 AM - hangar elevator (Ken Ryan)
2. 10:57 AM - Re: hangar elevator (user9253)
3. 11:50 AM - Re: hangar elevator (Sebastien)
4. 01:55 PM - Re: hangar elevator (Charlie England)
5. 03:05 PM - Re: Re: hangar elevator (Ken Ryan)
6. 04:43 PM - Re: Re: hangar elevator (Sebastien)
7. 05:07 PM - Re: Re: hangar elevator (Alec Myers)
8. 05:15 PM - Re: Re: hangar elevator (Sebastien)
9. 07:24 PM - Re: EFIS Erratic Temp Readings ()
Message 1
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Greetings,
I am putting a homemade elevator in the hangar. It will have a stop at the
top (living quarters over hangar) a stop in the middle (small storage room
over top of hangar bathroom) and a stop at the bottom (hangar level).
I will power this with a 12 volt winch that comes with a wireless remote
control.
Here's how I would like it to work. For normal operation, the remote "up"
or "down" button would be used to move the elevator cab. When the cab
reaches it's destination, a limit switch would cut off power to the winch.
For accessing the storage over the hangar, a second switch would put the
elevator controls into "mode b." When in mode b the remote would then be
used to move the cab to and from the middle stop.
Can you guys help me to understand how I can accomplish this using limit
switches and relay(s)?
Thanks,
Ken
Message 2
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| Subject: | Re: hangar elevator |
Does the winch have any built-in limit switches? Do you have a wiring diagram
for the winch?
Will people be riding in the elevator? If so, will there be some way to keep the
elevator from falling if the cable breaks? There are mechanical designs that
allow an elevator to move slowly, but stop it if it moves fast (falls).
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=500870#500870
Message 3
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| Subject: | Re: hangar elevator |
Is this elevator for people or goods?
On Sat, Mar 6, 2021, 10:11 Ken Ryan <keninalaska@gmail.com> wrote:
> Greetings,
>
> I am putting a homemade elevator in the hangar. It will have a stop at the
> top (living quarters over hangar) a stop in the middle (small storage room
> over top of hangar bathroom) and a stop at the bottom (hangar level).
>
> I will power this with a 12 volt winch that comes with a wireless remote
> control.
>
> Here's how I would like it to work. For normal operation, the remote "up"
> or "down" button would be used to move the elevator cab. When the cab
> reaches it's destination, a limit switch would cut off power to the winch.
>
> For accessing the storage over the hangar, a second switch would put the
> elevator controls into "mode b." When in mode b the remote would then be
> used to move the cab to and from the middle stop.
>
> Can you guys help me to understand how I can accomplish this using limit
> switches and relay(s)?
>
> Thanks,
>
> Ken
>
Message 4
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| Subject: | Re: hangar elevator |
On 3/6/2021 12:04 PM, Ken Ryan wrote:
> Greetings,
>
> I am putting a homemade elevator in the hangar. It will have a stop at
> the top (living quarters over hangar) a stop in the middle (small
> storage room over top of hangar bathroom) and a stop at the bottom
> (hangar level).
>
> I will power this with a 12 volt winch that comes with a wireless
> remote control.
>
> Here's how I would like it to work. For normal operation, the remote
> "up" or "down" button would be used to move the elevator cab. When the
> cab reaches it's destination, a limit switch would cut off power to
> the winch.
>
> For accessing the storage over the hangar, a second switch would put
> the elevator controls into "mode b." When in mode b the remote would
> then be used to move the cab to and from the middle stop.
>
> Can you guys help me to understand how I can accomplish this using
> limit switches and relay(s)?
>
> Thanks,
>
> Ken
Assuming observation of 'people protection' others mentioned, all you
really need is limit switches at top & bottom. Easiest drawing I found
with a quick search:
https://www.hamradio.me/wp-content/uploads/2010/10/5_atbottom.gif
The winch will have a DPDT *relay* to run the winch in/out. Replace the
word 'switch' in the drawing with 'relay', and wire your limit switches
in series with the winch motor, as shown.
I'm assuming that you intend to use the winch control as designed, where
you must hold the button in the desired direction to keep the winch
running. If you want to stop in the middle, just release the button at
the right point. You *could* make it work with a push&release circuit
for the up/down buttons, but it would be a lot more complicated.
If the middle level is only accessed from the ground floor, then you
could add a 2nd upper limit switch, and use the 'mode B' switch to
electrically replace the top floor switch with the mid level switch.
None of the above incorporates any kind of 'call' feature. If the
spousal unit is upstairs and you're not, you'd need some way to control
from multiple locations. Maybe with manual buttons that can also drive
the DPDT relay, but you need to be sure of a pecking order for the
controls, similar to the pilot/copilot trim controls in an a/c. You can
find diagrams (but don't try to use their tiny relays!) for that on the
Ray Allen site.
Charlie
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Message 5
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| Subject: | Re: hangar elevator |
Joe, I haven't picked out a specific winch. Most likely an inexpensive
winch or hoist from Harbor Freight. I have had a homemade elevator for 15
years, so I'm comfortable hanging from a cable. My existing one just uses a
standard control box with spring loaded buttons for "up" and "down." But I
want to introduce the idea of limit switches so that you can't overshoot or
undershoot the destination.
On Sat, Mar 6, 2021 at 10:01 AM user9253 <fransew@gmail.com> wrote:
>
> Does the winch have any built-in limit switches? Do you have a wiring
> diagram for the winch?
> Will people be riding in the elevator? If so, will there be some way to
> keep the
> elevator from falling if the cable breaks? There are mechanical designs
> that
> allow an elevator to move slowly, but stop it if it moves fast (falls).
>
> --------
> Joe Gores
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=500870#500870
>
>
Message 6
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| Subject: | Re: hangar elevator |
You should control it from an arduino. Place a microswitch at each place
you want to stop, run the arduino to relays controlling the winch, and use
your phone to tell the arduino which floor you want to go to.
On Sat, Mar 6, 2021, 15:10 Ken Ryan <keninalaska@gmail.com> wrote:
> Joe, I haven't picked out a specific winch. Most likely an inexpensive
> winch or hoist from Harbor Freight. I have had a homemade elevator for 15
> years, so I'm comfortable hanging from a cable. My existing one just uses a
> standard control box with spring loaded buttons for "up" and "down." But I
> want to introduce the idea of limit switches so that you can't overshoot or
> undershoot the destination.
>
> On Sat, Mar 6, 2021 at 10:01 AM user9253 <fransew@gmail.com> wrote:
>
>>
>> Does the winch have any built-in limit switches? Do you have a wiring
>> diagram for the winch?
>> Will people be riding in the elevator? If so, will there be some way to
>> keep the
>> elevator from falling if the cable breaks? There are mechanical designs
>> that
>> allow an elevator to move slowly, but stop it if it moves fast (falls).
>>
>> --------
>> Joe Gores
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=500870#500870
>>
>>
>>
>>
>>
>>
>> ==========
>> -
>> Electric-List" rel="noreferrer" target="_blank">
>> http://www.matronics.com/Navigator?AeroElectric-List
>> ==========
>> FORUMS -
>> eferrer" target="_blank">http://forums.matronics.com
>> ==========
>> WIKI -
>> errer" target="_blank">http://wiki.matronics.com
>> ==========
>> b Site -
>> -Matt Dralle, List Admin.
>> rel="noreferrer" target="_blank">http://www.matronics.com/contribution
>> ==========
>>
>>
>>
>>
Message 7
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| Subject: | Re: hangar elevator |
Putting people in a home-made elevator run from a harbour freight winch controlled
by an Arduino running home-written code. Thats adventurous!
On Mar 6, 2021, at 7:42 PM, Sebastien <cluros@gmail.com> wrote:
You should control it from an arduino. Place a microswitch at each place you want
to stop, run the arduino to relays controlling the winch, and use your phone
to tell the arduino which floor you want to go to.
On Sat, Mar 6, 2021, 15:10 Ken Ryan <keninalaska@gmail.com> wrote:
Joe, I haven't picked out a specific winch. Most likely an inexpensive winch or
hoist from Harbor Freight. I have had a homemade elevator for 15 years, so I'm
comfortable hanging from a cable. My existing one just uses a standard control
box with spring loaded buttons for "up" and "down." But I want to introduce
the idea of limit switches so that you can't overshoot or undershoot the destination.
On Sat, Mar 6, 2021 at 10:01 AM user9253 <fransew@gmail.com> wrote:
Does the winch have any built-in limit switches? Do you have a wiring diagram
for the winch?
Will people be riding in the elevator? If so, will there be some way to keep the
elevator from falling if the cable breaks? There are mechanical designs that
allow an elevator to move slowly, but stop it if it moves fast (falls).
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=500870#500870
==========
-
Electric-List" rel="noreferrer" target="_blank">http://www.matronics.com/Navigator?AeroElectric-List
==========
FORUMS -
eferrer" target="_blank">http://forums.matronics.com
==========
WIKI -
errer" target="_blank">http://wiki.matronics.com
==========
b Site -
-Matt Dralle, List Admin.
rel="noreferrer" target="_blank">http://www.matronics.com/contribution
==========
Message 8
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| Subject: | Re: hangar elevator |
As adventurous as putting people in a homemade airplane?
On Sat, Mar 6, 2021, 17:12 Alec Myers <alec@alecmyers.com> wrote:
>
> Putting people in a home-made elevator run from a harbour freight winch
> controlled by an Arduino running home-written code. That=99s advent
urous!
>
>
> On Mar 6, 2021, at 7:42 PM, Sebastien <cluros@gmail.com> wrote:
>
> You should control it from an arduino. Place a microswitch at each place
> you want to stop, run the arduino to relays controlling the winch, and us
e
> your phone to tell the arduino which floor you want to go to.
>
> On Sat, Mar 6, 2021, 15:10 Ken Ryan <keninalaska@gmail.com> wrote:
> Joe, I haven't picked out a specific winch. Most likely an inexpensive
> winch or hoist from Harbor Freight. I have had a homemade elevator for 15
> years, so I'm comfortable hanging from a cable. My existing one just uses
a
> standard control box with spring loaded buttons for "up" and "down." But
I
> want to introduce the idea of limit switches so that you can't overshoot
or
> undershoot the destination.
>
> On Sat, Mar 6, 2021 at 10:01 AM user9253 <fransew@gmail.com> wrote:
>
> Does the winch have any built-in limit switches? Do you have a wiring
> diagram for the winch?
> Will people be riding in the elevator? If so, will there be some way to
> keep the
> elevator from falling if the cable breaks? There are mechanical designs
> that
> allow an elevator to move slowly, but stop it if it moves fast (falls).
>
> --------
> Joe Gores
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=500870#500870
>
>
> ==========
> -
> Electric-List" rel="noreferrer" target="_blank">
> http://www.matronics.com/Navigator?AeroElectric-List
> ==========
> FORUMS -
> eferrer" target="_blank">http://forums.matronics.com
> ==========
> WIKI -
> errer" target="_blank">http://wiki.matronics.com
> ==========
> b Site -
> -Matt Dralle, List Admin.
> rel="noreferrer" target="_blank">http://www.matronics.com/contributio
n
> ==========
>
>
===========
===========
===========
===========
===========
>
>
Message 9
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| Subject: | EFIS Erratic Temp Readings |
Hello
Update on my erratic temp readings, I shorted all the temp inputs and
connected one shielded CHT temperature sensor and the problem went away.
Have now replaced all CHT sensors with shielded sensors that I made up using
K type thermocouple wire from Aircraft Spruce and shielded it with braid
grounded at one end. Everything stable now.
I have an MGL EFIS and had erratic EGT and CHT temp readings. EGT sensors
seem to be grounded already and did not cause a problem once I shorted
unused inputs.
Thanks for all the help
Mike
From: owner-aeroelectric-list-server@matronics.com
<owner-aeroelectric-list-server@matronics.com> On Behalf Of Charlie England
Sent: February 6, 2021 4:40 PM
Subject: Re: AeroElectric-List: EFIS Erratic Temp Readings
snipped
Did you put shorts across them or were they
simply disconnected?
No, they were not shorted, simply disconnected. Will try
with them shorted next week.
I would never have thought of shorting them
I did remove the alternator and ran the engine with no
alternator and that made no difference,
Readings were still erratic
Thanks
Mike
Hi Mike,
Can you remind us whether the engine is 'standard' mags & carb (or Bendix
style injection), or if it has some combination of electronic ignition/fuel
injection?
Thanks,
Charlie
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