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| Which USB "microscope" for measurement / poor mans shadowgraph? |
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| PekkaNF:
Thank you all, Choice of USB-microscopes and their suppliers is bewildering. Really hard to make any commitment without actually trying one or maybe someone has tried to measure carbide inserts / HSS-tools and thread forms with these? I see couple of brands showing up: Aven tools: Item # 26700-300, zipScope USB digital Microscope 2M http://aventools.thomasnet-navigator.com/item/digital-microscopes/-and-shop-microscopes-digital-microscopes-zipscope/26700-300? Item # 26700-200, Mighty Scope Digital - 10-200x http://aventools.thomasnet-navigator.com/item/digital-microscopes/mighty-scope-hand-held-digital-microscopes/26700-200?&bc=100|1211|1005|1006|1244x Item # 26700-209-PLR, Mighty Scope Digital 5M - 10-200x http://aventools.thomasnet-navigator.com/item/digital-microscopes/mighty-scope-hand-held-digital-microscopes/26700-209-plr?&bc=100|1211|1005|1006|1244x I'm having hard time differenting them in terms on measuring some 6-20 mm long objects with fairly low accuracy demand. Image quality and large specimen to lense distance would be plus. They seem to come with some software that should work with some measurement functions. But they also sell separate software, that might be same or different? Item # 26100-406, EZ Measure Software http://aventools.thomasnet-navigator.com/item/all-categories/tegories-optical-inspection-tools-imaging-software/26100-406?cid=5451&prodid=1270&itemid=2134&backtoname=Item+%23+26700-300&pane=sb&bc=100|1211|1005|1006|1244x And then there is of cource Dino-Lite that has very many models, but not sure which one would have right spec. without braking my bank. http://www.dino-lite.com/products_list_class.php?product_type_name=Handheld%20Digital%20Microscope%28USB%29 Looks like they are very spesific purposes, but when resolution goes up even with 10 times cheaper ones, price skyrockets. Or am I googling on all wrong places? Pekka |
| Raggle:
I also have one of these, bought for £30 at Lidl in UK http://www.ebay.co.uk/itm/NEW-BRESSER-20x80x350-USB-MICROSCOPE-WITH-SOFTWARE-Same-day-dispatch-/230883148382?pt=UK_Collectables_Scientific_MJ&hash=item35c1b5425e There was no measuring software with it but the CoolingTech I mentioned earlier should work. It only works for saved images so I imagine they can be imported into the program, but i haven't tried it yet |
| srm_92000:
Just recently I converted an old wireless colour camera, about £49 here in UK, into an edge finder for the mill. I will post pics if anyone is interested. The thing is I've used it more since for measuring things. as its wireless I can spin it by hand and mark my screen (old glass tube tv) with dry wipe marker, then use the dials to measure stuff. It's come in really handy. |
| Fergus OMore:
There are two articles which I recall. The first was in a series in Model Engineers Workshop on a variety of subjects including webcams and the second was by a Mr Mike Trethewey who wrote up using a cheap web cam program called Centrecam also in MEW. I recall making up the latter and registering my use. Actually it is still available on the net but the update has yet to materialise |
| PekkaNF:
--- Quote from: srm_92000 on December 01, 2012, 08:13:49 PM ---Just recently I converted an old wireless colour camera, about £49 here in UK, into an edge finder for the mill. I will post pics if anyone is interested. The thing is I've used it more since for measuring things. as its wireless I can spin it by hand and mark my screen (old glass tube tv) with dry wipe marker, then use the dials to measure stuff. It's come in really handy. --- End quote --- I'm definately would like to see the mechanical structure and hear how did you mannaged to zero optical and mechanical axsis. I have allways wondering how to use crosshair, reticle or such with USB-camera, but your solution is pretty clever and dispenses with computer altogether, which is pretty good. --- Quote from: Fergus OMore on December 02, 2012, 03:23:49 AM ---There are two articles which I recall. The first was in a series in Model Engineers Workshop on a variety of subjects including webcams and the second was by a Mr Mike Trethewey who wrote up using a cheap web cam program called Centrecam also in MEW. I recall making up the latter and registering my use. Actually it is still available on the net but the update has yet to materialise --- End quote --- I remember those articles! Very inspirational. Was there a catch of using certain model of web cam for centrecam? My wish is that if the camera needs to be hooked up to the computer then computer, then computer should provide much functionality. Pekka |
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