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Replica 722.6 dipstick - 3D printing opportunity

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AlanMcR
Posts: 3292

Replica 722.6 dipstick - 3D printing opportunity

Post#1 » Tue Feb 13, 2018 4:30 pm

The 722.6 transmission came without dipstick. The shop dipstick is built to attach to a stiff shaft that is a pain to carry on a trip. It looks like the important part (the end) could be quickly duplicated on a 3D printer. If the top end had a hole in it then one could tie it to a long piece of piano wire making for a very compact travel tool. I guess the plastic has to withstand >80C, maybe ~100C?

Anyone game?

DipstickTip722.6.jpg
...Alan

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vadimivanovich
Posts: 6697

Re: Replica 722.6 dipstick - 3D printing opportunity

Post#2 » Tue Feb 13, 2018 6:23 pm

Me me me me!!! I even have a surplus of piano wire... don't ask.
"The way you think is the way you live"

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superapan
Posts: 129

Re: Replica 722.6 dipstick - 3D printing opportunity

Post#3 » Tue Feb 20, 2018 12:12 am

I'm currently replacing transmission to a 722.634 and will need to fill it up with ATF.

Does "25c" and "80c" in the picture mean it's the filled-up level when oil temp is 25 and 80 centigrade?
W460 LWB -85, om606.910 w/ 722.634. Project thread:
https://clubgwagen.com/forum/viewtopic.php?f=17&t=9900

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AlanMcR
Posts: 3292

Re: Replica 722.6 dipstick - 3D printing opportunity

Post#4 » Tue Feb 20, 2018 7:14 am

superapan wrote:I'm currently replacing transmission to a 722.634 and will need to fill it up with ATF.

Does "25c" and "80c" in the picture mean it's the filled-up level when oil temp is 25 and 80 centigrade?

Yes, the fluid should be between the narrow bars for either 25C or 80C with the engine running. The 25C range is only for an initial fill estimate. It has to read within the 80C band when fully warmed up. Too full is as bad as too low, maybe worse.
...Alan

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grazza
Posts: 795

Re: Replica 722.6 dipstick - 3D printing opportunity

Post#5 » Tue Feb 20, 2018 10:46 am

I bought one off ebay.
https://www.ebay.com.au/sch/i.html?_odk ... k&_sacat=0

Is there something wrong with these? I keep one in the G, coiled up in its plastic bag/sheath.

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AlanMcR
Posts: 3292

Re: Replica 722.6 dipstick - 3D printing opportunity

Post#6 » Tue Feb 20, 2018 1:45 pm

It takes up quite a bit of room. I'd like to get it to fit into something a little longer than a zippo lighter.
...Alan

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superapan
Posts: 129

Re: Replica 722.6 dipstick - 3D printing opportunity

Post#7 » Wed Feb 21, 2018 7:53 am

Here's a first iteration of a 3D-printed dipstick. I'll make one in nylon too, since it has better heat resistance.

The width is 5 mm. The hole is 2.5 mm, though the thickness of the plastic strands make it 2 mm. I figure I can attach a piano wire or something, will see how it turns out.

I've attached the .stl file (zipped, or forum won't allow it), ready for a 3D printer.

Kudos to my buddy Robin for allowing me to take all the credit :p

IMG_3281.JPG

stick.zip
(13.39 KiB) Downloaded 7 times
W460 LWB -85, om606.910 w/ 722.634. Project thread:
https://clubgwagen.com/forum/viewtopic.php?f=17&t=9900

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vadimivanovich
Posts: 6697

Re: Replica 722.6 dipstick - 3D printing opportunity

Post#8 » Wed Feb 21, 2018 2:19 pm

Pretty neat! Would a cylindrical stick work better, with a hole down the center of one end for the wire to be glued into? I'm afraid of the current version flopping to one side and giving uneven readings.
"The way you think is the way you live"

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AlanMcR
Posts: 3292

Re: Replica 722.6 dipstick - 3D printing opportunity

Post#9 » Wed Feb 21, 2018 3:02 pm

I was under the impression that the tube went down close to the pan floor. However review of several parts pictures don't support that recollection. So, you might be right about needing the spring to hold the tube straight.
...Alan

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