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+--- Thread: Sadly I'm a Mechanical Engineer... (/thread-14904.html)
Sadly I'm a Mechanical Engineer... - Klondor36 - 04-28-2020 05:57 PM
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!!!
RE: Sadly I'm a Mechanical Engineer... - Massimo Gnerucci - 04-28-2020 08:41 PM
(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.
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!!!
Have a look here.
BTW: you should post this kind of questions in the General forum.
RE: Sadly I'm a Mechanical Engineer... - Klondor36 - 04-29-2020 12:53 AM
(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.
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!!!
Have a look here.
BTW: you should post this kind of questions in the General forum.
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.
RE: Sadly I'm a Mechanical Engineer... - Massimo Gnerucci - 04-29-2020 06:43 AM
(04-29-2020 12:53 AM)Klondor36 Wrote:(04-28-2020 08:41 PM)Massimo Gnerucci Wrote: Have a look here.
BTW: you should post this kind of questions in the General forum.
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.
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
RE: Sadly I'm a Mechanical Engineer... - Moggul - 04-29-2020 11:00 AM
(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.
RE: Sadly I'm a Mechanical Engineer... - BillBee - 04-29-2020 11:18 AM
(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.
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.
If you don't mind me asking what was the issue with your 41 and approximately how much was the repair?
-Bill
RE: Sadly I'm a Mechanical Engineer... - Moggul - 04-29-2020 01:46 PM
(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?
-Bill
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.
RE: Sadly I'm a Mechanical Engineer... - BillBee - 04-29-2020 01:58 PM
(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?
-Bill
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, that seems very reasonable.
RE: Sadly I'm a Mechanical Engineer... - twoweims - 04-29-2020 02:27 PM
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
RE: Sadly I'm a Mechanical Engineer... - Klondor36 - 04-29-2020 05:08 PM
Thank's Massimo!
RE: Sadly I'm a Mechanical Engineer... - Klondor36 - 04-29-2020 05:13 PM
(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, that seems very reasonable.
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?
RE: Sadly I'm a Mechanical Engineer... - Massimo Gnerucci - 04-29-2020 06:48 PM
(04-29-2020 05:08 PM)Klondor36 Wrote: Thank's Massimo!
You're welcome. :)
RE: Sadly I'm a Mechanical Engineer... - twoweims - 04-29-2020 08:23 PM
(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.
RE: Sadly I'm a Mechanical Engineer... - Moggul - 04-30-2020 10:05 AM
(04-29-2020 05:13 PM)Klondor36 Wrote: [quote='BillBee' pid='131003' dateline='1588168719']
Wish I knew who could fix the battery pack.
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/epages/eb9376.sf/es_ES/?ObjectPath=/Shops/eb9376/Products/%22Battery%20holder%203D%22
RE: Sadly I'm a Mechanical Engineer... - BillBee - 04-30-2020 11:15 AM
(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?
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.
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
RE: Sadly I'm a Mechanical Engineer... - Klondor36 - 04-30-2020 01:50 PM
(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.
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.
It messed with my self worth there for a while. Then i got better! lol
RE: Sadly I'm a Mechanical Engineer... - Klondor36 - 04-30-2020 01:56 PM
(04-30-2020 10:05 AM)Moggul Wrote:(04-29-2020 05:13 PM)Klondor36 Wrote: [quote='BillBee' pid='131003' dateline='1588168719']
Wish I knew who could fix the battery pack.
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/epages/eb9376.sf/es_ES/?ObjectPath=/Shops/eb9376/Products/%22Battery%20holder%203D%22
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.
RE: Sadly I'm a Mechanical Engineer... - AndiGer - 04-30-2020 02:07 PM
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
RE: Sadly I'm a Mechanical Engineer... - Moggul - 05-01-2020 07:42 AM
(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