buttons that don't register well

If you're having problems with the hardware of a DM42, post about them here.
Logan
Posts: 15
Joined: Sat Jul 08, 2017 11:03 pm

Re: buttons that don't register well

Post by Logan » Fri Jun 15, 2018 12:38 pm

Here it is: and remember, Swiss Micros has not yet said anything endorsing (or discouraging) this!
https://youtu.be/ZDxVxw6_SKU

toml_12953
Posts: 433
Joined: Wed May 03, 2017 5:46 pm
Location: Malone, NY USA

Re: buttons that don't register well

Post by toml_12953 » Fri Jun 15, 2018 4:18 pm

Walter wrote:
Tue Dec 19, 2017 8:28 pm
gruensucher wrote:
Tue Dec 19, 2017 8:22 pm
Sorry, in my joy, I was Jeck !
:lol: Let's see whether Google can translate this (hint: gruensucher meant "jeck"). 8-)
Yeah, but what the hell does "jeck" mean?
Tom L

आपका दिन शुभ हो
DM42 SN: 00025 (Beta)
SN: 00221 (Shipping)

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Russel
Posts: 14
Joined: Fri Mar 16, 2018 7:38 pm
Location: USA

Re: buttons that don't register well

Post by Russel » Fri Jun 15, 2018 7:28 pm

Logan wrote:
Fri Jun 15, 2018 12:38 pm
Here it is: and remember, Swiss Micros has not yet said anything endorsing (or discouraging) this!
https://youtu.be/ZDxVxw6_SKU
Thanks for posting the video!

I tried this on a DM15L, but didn't really notice a difference. Note: the DM15L that I carry with me has a fair amount of use and the keys are "lighter" than when the unit was new. That may be why there is no noticeable difference.

I will try it on a DM42 when I get home. It has "stiffer" keys.

[edit]

After pulling the DM15L out a few times for some quick calculations, the keys do appear to be a little lighter and have a more consistent feel to them. When I was trying it after performing "the procedure" I was using my index finger to press the buttons. I normally use two hands to hold the calculator and operate the keys with my thumbs. Using the calculator that way I do notice a slight improvement in the feel of the keys.

[/edit]
Last edited by Russel on Fri Jun 15, 2018 8:32 pm, edited 1 time in total.

toml_12953
Posts: 433
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Location: Malone, NY USA

Re: buttons that don't register well

Post by toml_12953 » Fri Jun 15, 2018 8:25 pm

Logan wrote:
Fri Jun 15, 2018 12:38 pm
Here it is: and remember, Swiss Micros has not yet said anything endorsing (or discouraging) this!
https://youtu.be/ZDxVxw6_SKU
I was having to delicately set the two big screws in order to use some keys (such as Enter) Too loose or tight and the keys had problems.
I tried your method and now all my keys are nice and clicky. Even Enter is consistent all the way across. I can now tighten the screws and they don't get out of adjustment as they were doing. Thanks!
Tom L

आपका दिन शुभ हो
DM42 SN: 00025 (Beta)
SN: 00221 (Shipping)

Logan
Posts: 15
Joined: Sat Jul 08, 2017 11:03 pm

Re: buttons that don't register well

Post by Logan » Sat Jun 16, 2018 2:45 pm

Those results are very encouraging. I'm glad.

Thomas Okken
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Re: buttons that don't register well

Post by Thomas Okken » Sat Jun 16, 2018 4:32 pm

I tried this on my "beta unit" DM42 (serial number 62), and it worked quite well. It looks like I'll have to repeat the procedure on a few keys that are still a bit stiff, but most of them are fine now, even the ENTER key, and regardless of whether you press it on the left, right, or in the middle.

bernouilli
Posts: 3
Joined: Tue Jun 19, 2018 9:01 am

Re: buttons that don't register well

Post by bernouilli » Fri Jun 22, 2018 7:57 am

I had a look at the video and I think that the bending doesn't go far enough.
I too had very stiff buttons, I tested them on a kitchen scale : on most keys, I had to press more than 300gr to have the keypress. On some of the keys like Enter or SIN, it even went up to 500gr. The same operation on a hp32s gives about 130gr.
What I did is the same as proposed in the video but I bent the key a lot more, for each key I bent it up to 60° going back and forth many time (6-10 times), but you have to be careful not to break the plastic that holds the key.
I also noticed, on my dm42, that the upper keys (4 upper rows), when you press a key, it get stuck with the frame and you have to press harder to make the key go the other side. This is because there is less space between the upper side of the key and the frame.
And for the ENTER key, I usee the fix posted by cesar.
Now all then keys respond to a 200gr push and I'm quite happy with it. I doubt you can do better.

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H2X
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Location: Norway

Re: buttons that don't register well

Post by H2X » Fri Jun 22, 2018 1:38 pm

Does the fact that it's possible to wear in the keys like this suggest that they're susceptible to break from material fatigue anytime soon?
DM42 SN:00040
Be enter not or (Hamlet Yoda not)

bernouilli
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Joined: Tue Jun 19, 2018 9:01 am

Re: buttons that don't register well

Post by bernouilli » Fri Jun 22, 2018 6:41 pm

No, I doubt they’d break in normal usage. When you click they only move like 5°.

Rmollov
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Location: Sydney, Australia

Re: buttons that don't register well

Post by Rmollov » Sun Jul 01, 2018 2:43 am

Logan wrote:
Fri Jun 15, 2018 12:38 pm
Here it is: and remember, Swiss Micros has not yet said anything endorsing (or discouraging) this!
https://youtu.be/ZDxVxw6_SKU
Thanks Logan, I'm glad to confirm that your "key flexing" trick worked perfectly for me - even though not perfect, but now my DM42 is definitelly USABLE! Thanks again!

Cheers,

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