Sadly I'm a Mechanical Engineer...
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04-28-2020, 05:57 PM
Post: #1
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Sadly I'm a Mechanical Engineer...
and I can't fix my HP-41CV. It was given to me from my Team Lead who knew I was inadvertently collecting HP calculators. My -41 suffers from bottom post breakage where the screen would show up when you flex it. I went in and "fixed" the post and it doesn't show anything now and the post is broke again. Also have a battery pack that requires some TLC.
I tried a couple of places to see if someone fixed them via Google but I thought I would ask the experts. Who could fix this and is reasonable? BTW, first time poster and not the first time i hosed up a calc! Thanks!!! |
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04-28-2020, 08:41 PM
Post: #2
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RE: Sadly I'm a Mechanical Engineer...
(04-28-2020 05:57 PM)Klondor36 Wrote: and I can't fix my HP-41CV. It was given to me from my Team Lead who knew I was inadvertently collecting HP calculators. My -41 suffers from bottom post breakage where the screen would show up when you flex it. I went in and "fixed" the post and it doesn't show anything now and the post is broke again. Also have a battery pack that requires some TLC. Have a look here. BTW: you should post this kind of questions in the General forum. Greetings, Massimo -+×÷ ↔ left is right and right is wrong |
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04-29-2020, 12:53 AM
Post: #3
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RE: Sadly I'm a Mechanical Engineer...
(04-28-2020 08:41 PM)Massimo Gnerucci Wrote:(04-28-2020 05:57 PM)Klondor36 Wrote: and I can't fix my HP-41CV. It was given to me from my Team Lead who knew I was inadvertently collecting HP calculators. My -41 suffers from bottom post breakage where the screen would show up when you flex it. I went in and "fixed" the post and it doesn't show anything now and the post is broke again. Also have a battery pack that requires some TLC. Oops. I thought I did. it's in there now I think. Anyways, I saw this site you're referencing but I thought I would leave it to someone who has done this before. I was looking for a name or website that I could send it to that people have used before to fix it as apparently i'm not good at it. |
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04-29-2020, 06:43 AM
Post: #4
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RE: Sadly I'm a Mechanical Engineer...
(04-29-2020 12:53 AM)Klondor36 Wrote:(04-28-2020 08:41 PM)Massimo Gnerucci Wrote: Have a look here. I asked to move the thread... ;) The Calculator Store also (tries to) fix broken hardware; I receive their newsletter and this is an excerpt from the latest: Quote:If you have repair questions, or you want us to repair your HP41c, please email us to jose@thecalculatorstore.com Greetings, Massimo -+×÷ ↔ left is right and right is wrong |
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04-29-2020, 11:00 AM
Post: #5
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RE: Sadly I'm a Mechanical Engineer...
(04-29-2020 12:53 AM)Klondor36 Wrote: I was looking for a name or website that I could send it to that people have used before to fix it as apparently i'm not good at it. I am not a mechanical engineer but a civil engineer so I also couldn't fix it myself I just sent them my HP-41C for repair and they did a great job. 11C 12C 15C 17BII 18C 19BII 21 25 27S 28S 32E 32S 32SII 33C 33S 34S 35S 38C 39gs 39GII 40gs 41C 41CV 41CX 42S 45 48G+ 48GII 49G 49G+ 50 67 71B 97 |
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04-29-2020, 11:18 AM
Post: #6
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RE: Sadly I'm a Mechanical Engineer...
(04-29-2020 11:00 AM)Moggul Wrote:(04-29-2020 12:53 AM)Klondor36 Wrote: I was looking for a name or website that I could send it to that people have used before to fix it as apparently i'm not good at it. If you don't mind me asking what was the issue with your 41 and approximately how much was the repair? -Bill |
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04-29-2020, 01:46 PM
Post: #7
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RE: Sadly I'm a Mechanical Engineer...
(04-29-2020 11:18 AM)BillBee Wrote: If you don't mind me asking what was the issue with your 41 and approximately how much was the repair? There is a flat fee of €50 for most repairs. Mine had broken lower posts plus a couple other issues. They 3D print many spares too. 11C 12C 15C 17BII 18C 19BII 21 25 27S 28S 32E 32S 32SII 33C 33S 34S 35S 38C 39gs 39GII 40gs 41C 41CV 41CX 42S 45 48G+ 48GII 49G 49G+ 50 67 71B 97 |
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04-29-2020, 01:58 PM
Post: #8
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RE: Sadly I'm a Mechanical Engineer...
(04-29-2020 01:46 PM)Moggul Wrote:(04-29-2020 11:18 AM)BillBee Wrote: If you don't mind me asking what was the issue with your 41 and approximately how much was the repair? Thanks, that seems very reasonable. |
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04-29-2020, 02:27 PM
Post: #9
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RE: Sadly I'm a Mechanical Engineer...
You may want to hold off on shipping anything to Europe for repair until the Covid-19 situation calms down. I shipped my DM-42 back to SwissMicros over a month ago and it is still held up somewhere. Others are experiencing similar delays. See the thread below:
https://forum.swissmicros.com/viewtopic.php?f=15&t=2430 |
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04-29-2020, 05:08 PM
Post: #10
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RE: Sadly I'm a Mechanical Engineer...
Thank's Massimo!
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04-29-2020, 05:13 PM
Post: #11
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RE: Sadly I'm a Mechanical Engineer...
(04-29-2020 01:58 PM)BillBee Wrote:(04-29-2020 01:46 PM)Moggul Wrote: There is a flat fee of €50 for most repairs. Mine had broken lower posts plus a couple other issues. They 3D print many spares too. Thanks for the information. $60-65 is very reasonable compared to the $150 -$250 I saw and was quoted. Wish I knew who could fix the battery pack. Concerning the shipping overseas: How did you send it? USPS? How did you package it? |
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04-29-2020, 06:48 PM
Post: #12
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RE: Sadly I'm a Mechanical Engineer...
Greetings, Massimo -+×÷ ↔ left is right and right is wrong |
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04-29-2020, 08:23 PM
Post: #13
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RE: Sadly I'm a Mechanical Engineer...
(04-29-2020 05:13 PM)Klondor36 Wrote: Concerning the shipping overseas: How did you send it? USPS? How did you package it? I shipped it USPS Priority International. In a USPS Provided Priority Mail Box with my well packed box inside of that. Mailed on 3/14 from Arizona. The tracking info seems to indicate that it may be still in Los Angeles. |
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04-30-2020, 10:05 AM
Post: #14
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RE: Sadly I'm a Mechanical Engineer...
(04-29-2020 05:13 PM)Klondor36 Wrote: [quote='BillBee' pid='131003' dateline='1588168719'] You can fix the battery pack yourself. I fixed mine using just an X-Acto knife, 4 1/3 AAA batteries and some soldering. Use this guide but install 4 1/3 AAA batteries in series instead of the weird ones, wih the same orientation of the original ones. http://hp41.claughan.com/file/HP41Battery.pdf Also you can buy a replacement pack from the same site that performs the repairs for 35 €. https://www.thecalculatorstore.com/epage...er%203D%22 11C 12C 15C 17BII 18C 19BII 21 25 27S 28S 32E 32S 32SII 33C 33S 34S 35S 38C 39gs 39GII 40gs 41C 41CV 41CX 42S 45 48G+ 48GII 49G 49G+ 50 67 71B 97 |
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04-30-2020, 11:15 AM
Post: #15
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RE: Sadly I'm a Mechanical Engineer...
(04-29-2020 08:23 PM)twoweims Wrote:(04-29-2020 05:13 PM)Klondor36 Wrote: Concerning the shipping overseas: How did you send it? USPS? How did you package it? If you have a tracking # you might be able to do an online "where's my package" inquiry. Over the past two months I've had to do this for domestic items that were 8-10 days in a "in transit" void that would never end & afterwards they magically would appear moving again. International I am not sure, but its a thought. -Bill |
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04-30-2020, 01:50 PM
Post: #16
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RE: Sadly I'm a Mechanical Engineer...
(04-29-2020 11:00 AM)Moggul Wrote:(04-29-2020 12:53 AM)Klondor36 Wrote: I was looking for a name or website that I could send it to that people have used before to fix it as apparently i'm not good at it. It messed with my self worth there for a while. Then i got better! lol |
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04-30-2020, 01:56 PM
Post: #17
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RE: Sadly I'm a Mechanical Engineer...
(04-30-2020 10:05 AM)Moggul Wrote:(04-29-2020 05:13 PM)Klondor36 Wrote: [quote='BillBee' pid='131003' dateline='1588168719'] I have quite a bit of corrosion that I believe i can get rid of. I will take it apart and try to see if i can clean it up. I've never seen 1/3 AAA batteries before. I'll have to look at that on Google... WOW never knew they existed! If I can't get rid of the corrosion I will just buy a pack. |
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04-30-2020, 02:07 PM
Post: #18
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RE: Sadly I'm a Mechanical Engineer...
You can also buy a pack of 4 rechargeables ready to drop in the battery pack as a replacement on ebay. Look for article no. 111929950942
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05-01-2020, 07:42 AM
Post: #19
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RE: Sadly I'm a Mechanical Engineer...
(04-30-2020 02:07 PM)AndiGer Wrote: You can also buy a pack of 4 rechargeables ready to drop in the battery pack as a replacement on ebay. Look for article no. 111929950942 I wish I had known about these when I rebuilt mine 11C 12C 15C 17BII 18C 19BII 21 25 27S 28S 32E 32S 32SII 33C 33S 34S 35S 38C 39gs 39GII 40gs 41C 41CV 41CX 42S 45 48G+ 48GII 49G 49G+ 50 67 71B 97 |
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