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DSO138 Case - chunky

by Salvation76 Aug 8, 2016
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Can you please share the fusion 360 file so i can make the case bigger for my batteries? Please?

Is there room for two 18650 batteries?

So, I am so close to finishing my chargeable DSO, but there are a few problems I have ran into, I was wondering if you could share the Fusion 360 files please so i can make the legs fit and make pegs so I don't need screws, please and thank you so much

How do I snap the kickstands into their respective spots?

Hi. It is not a snap fit. You just put them in place and attach the with small screws.

they only go into about half way and don't go down any further.

Strange. Did you use support for the bottom part of the case? I did not have that issue printing mine.

yes, I did support it, whats the tolerance on the inner holes of the legs?

The holes in the legs are 6.4mm in diameter and the cylinder on the bottom part is 6mm in diameter.

do you mind, maybe remaking the legs so they could be about .5 or .6? I'm using a cr-10, thank you so much

What kind of run time are you getting with this? The so called 9V rechargeables are really only 7.4V nominal and even a non-rechargeable true 9V alkaline only lasts maybe half an hour. I really don't care about the thickness, I want a cheap field unit but one that can last several hours between charges and doesn't allow the regulators to drop out because it is really below 8V after just a few minutes of use.

I'm also hacking in a 7805 because that 78L05 run at or over it's limit is going to be eating up a lot of excess battery juice .... Heat = wasted battery power and from what I understand (Mine won't be here until tomorrow) that 78L05 gets really really hot. Linear regulators inherently waste current which is why switching regulators are so popular in battery power devices and when you run them near or especially over their design limits they really eat up batteries .....

Hello Salvation76! could I ask you to make the model for 2.8 inch LCD? You just have to make central cube for 60*47 mm

Where did you find the battery holder? I cannot seem to find one in that configuration.

You could drop down to AAA and then use two 4 battery holders wired in series. It wouldn't last as long as AA's but it's still better than a 9V

I used 2 3-AA battery holders in series and it worked just fine.

6 Alkalines = 9V and will work

6 Rechargeables = 7.2 V but will charge to 8.4 V but they don't stay there very long

It'll work but your batteries will appear to be dead before they are really 50% gone ,,,, You simply cannot beat the Laws of Physics and how batteries work

You do realise there is room for 8 batteries :P

I got it out of my junk box, think it was from an old RC transmitter. I'm not sure where you can get exactly that type, they seems to be pretty hard to find.
I guess a workaround would be to cut a 4-cell version in half and put the half's in each end of the battery compartment box (bottom part). Some double sided tape to secure the positions, and add some support underneath the batteries in between the halves.

I hope this helps.