- Jul 10, 2015
You know now I think of it I did not offer those NDB7675 20mm 2.7A overdrive units for very long as they went out of stock after maybe two weeks of offering them and did not relist them any of the times they came back in stock but I had sent out maybe 15-20 of them even with the big warning about accepting the risk. I had assume I would have had heard back about how long they lived. I was of the opinion they would would be dropping like decanned G-Ball diodes in china made 8W/10W/15W CNC modules.Yes, Jordan, that is the same diode. I have another unused one in my stock, but thought it would be easier to exchange the diode in the NDB7675 build with my M462 since it has a 1.8 amp X-Drive. Then I can use the 2.4 amp driver in a new host with the NDB7675. Felt like the thing to do as I got very little shift in wavelength on that diode at 1.8 amps.
Yea and I do want to make an adapter that can thread in my modules to hold the extra lenses but what I have seen on those units they want the colimator to be as short a focal length as possible even preferring some F2 named colimmator that I think has a shorter focal length than the DTR-G-2 to get a nice correction with the multi mode diode.The NUBM07 could be used with GBall intact by placing another backwards GBall inline or I have used a backwards G2 but a backwards GBall would be better, then your normal collimating lens, the divergence out of the backwards GBall will be in theory the same as the raw output.
I pulled out my stash of extra long lens barrels. I am going to try some different setups. For the backwards G and forward G do you have an estimate of the distance from G to G that worked for you? Would be nice if it was this easy.The NUBM07 could be used with GBall intact by placing another backwards GBall inline or I have used a backwards G2 but a backwards GBall would be better, then your normal collimating lens, the divergence out of the backwards GBall will be in theory the same as the raw output.
View attachment 65081
Hi Jordan! Is the N465nm coming back anytime soon? I doppred mine and it broke, been waiting for months to replace it
NUBM08 for good reference vs a NUBM44 as they are pretty close for raw output geomitry.Very nice.
Note of course your beam dia. and focused spot width with different combos.
Was that a NUBM07 in your video ?
Did you mount your panny lens in the module with a spring? I tested before with a panny lens in a coupler held with a spring but wanted a more solid seat for normal use, but for testing whatever works is great Also was that a panny lens in your video ? Backwards G3 then panny ?
If backwards G3 then panny make sure to compare beam dia. and focused spot width on your same wall with a backwards G2 and panny.