Frequently Asked Questions

How do I specify the part I need? When do I get my custom adapter if I order it today? The part I need is difficult to specify using the online tools offered Why is the cost higher than the price of a similar commercial part? Can you make parts in volume? Can I return the part if it doesn't fit? Do you have an extra charge for quick delivery? Q. How do I specify the part I need? A. If the devices to be connected are standard or brand name optical or image train components, then by far the easiest way to specify and order a custom adapter is through our automated Build-An-Adapter. If you require a special part for another area, such as a for telescope mount, or a replacement part for a vintage instrument, our general purpose Online Estimator would probably be more appropriate to calculate the cost for such a part. If neither of the above methods suit you needs, you can of course give us the complete measurements and specifications for the adapter you require, but it is generally easier and a lot safer to just tell us where the part is to be used. We maintain an extensive knowledge base of specifications on telescopes, cameras and accessories, and we can usually quickly figure out the length, threads, diameters and finish for an adapter to match specific instruments and accessories. Please be aware that sometimes "too much" information may be detrimental: if a specification is widely used commercially, such as a common thread for a Takahashi or an Astro-Physics telescope, we most likely already have the detailed specification on file and we need only the instrument type or model number. Detailed thread pitch, diameter, or length information are not needed. Q. When do I get my custom adapter if I order it today? A. We strive to provide a fast lead time, with a part ready to ship within a few days of a confirmed order for simple specifications and standard stock. Generally our turnaround time depends on the complexity of the requirements and the type of material desired, and of course our current backlog. Please always consult us for special requirements. Q. The part I need is difficult to specify using the online tools offered. A. We know some type of parts cannot be easily described either with Build-An-Adapter or the Part Estimator. We also accept specifications in an engineering drawing, a rough draft, or just a description in an email or FAX. You can also send us a sample, for example to build a replica of a damaged part. You can mail us a part that is similar to the one you need but perhaps has different dimensions or is made of some other material. Another approach is to give us a description of a specific requirement and let us design a solution if such is within our ability: we specialize in precision machining one-of-a-kind astronomical parts which are either difficult or impossible to find commercially or are no longer manufactured due to product discontinuance or other reasons. Q. Why is the cost higher than the price of a similar commercial part? A. The cost of a one-of-a-kind, custom made part will always be substantially higher than a part manufactured in volume since the later is generally fabricated through an automated, less labor-intensive process. Thus if the part can be purchased on the commercial market, this will almost certainly be the least expensive alternative. PreciseParts excels in hand-machining precision components that are either too specialized to be economically mass-manufactured or that are no longer available from their original suppliers. Q. Can you make parts in volume? A. PreciseParts specializes in making one-of-a-kind components essentially one at a time. This is where we believe we can best serve the amateur astronomy community. Although we can generally make two or three units for a reasonable price, we would recommend contacting a production machine shop to make parts in higher volume at an optimum cost. We also perform part prototyping to test design iterations. The availability of a prototype can substantially facilitate later dealing with a production machine shop. Q. Can I return the part if it doesn't fit? A. If some specified dimensional tolerances have been exceeded or the part doesn't meet a stated specification, we will accept the part back and rework it (or at our option replace it) at no cost. If the part meets the mutually agreed specifications, the part can be sent back to us and we will make alterations at a previously agreed price if the part doesn't need to be re-made. If the part would need to be re-made, a new part should be ordered. And, adding some legalese: our responsibility is limited to altering or exchanging a part. We cannot be held responsible for any consequential damages resulting from using a part we made. Q. Do you have an extra charge for quick delivery? A. No. We will do our best to prioritize your part to accomodate an emergency and we can also ship the part overnight if required. Contact us with your special requirements.