GR Services, Inc. Home Page

GR Services, Inc. runs theGR5store.com which sells 3d printer parts, laser interferometers, and more.


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gr5 store - reseller of 3dsolex ultimaker parts including Olsson block, nozzles, fans, isolators, heaters, temp sensors, and more.
Bath Interferometer Kits - Test your telescope mirror to 1/50 wave accuracy for < $160
Map of North South Lake Campground in Catskills, NY (new york)
Bargain Buddy Removal
Odyssey back seat (rear seat) stuck/broken repair
Spy Fox Dry Cereal Walkthrough (cheat/hints)
How to make glass disappear in a liquid - index of refraction
Need to know what time your camera puts into images? Click here to calibrate your camera clock.
Ultimaker3 HardCore Profiles.
Putt Putt Saves the Zoo Walkthrough (cheat/hints)
MoonLoc V 1.05 - Free Moon and sun locator program with source code. Windows only but source code can be adapted.
Sunspotters - How to use a Sunspotter telescope to determine the rotational period of the sun and other useful materials.
A hard working electrician who lives in wellesley and services wellesley, newton, weston, wayland, natick area.
How to make a simple java bean using Netbeans 6.0.1 - example shows extension of JButton
How to build dftfringe from the source files
Bath Interferometer diagram tool/calculator - really useful if you are trying to design and lay out the positions of the elements of a bath - to make sure the beams don't get clipped by the cube, to make sure your diverging lens isn't too big and to make sure your flat is big enough. Also: how close to the corner can I send my laser?
Interferogram Simulator - Real time simulator of interferograms as you adjust Zernike terms. Useful to see what an igram will look like for your mirror and if your camera has the resolution to see them. how much tilt you need to get rid of closed loop fringes (not always mandatory but a good idea). how much defocus you need so the fringes are big enough to photograph. Also it helps to recognize patterns you see when adjusting your interferometer.
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