The Central Instrument Shop provides a wide spectrum of machining fabrication and assembly capabilities specializing in precision mechanical components, assemblies, and weldments. Experienced and innovative shop personnel can build to print or provide assistance in developing concepts into manufacturable hardware.
Work can be submitted to the shop as scheduled work or as submitted work via a Work Order Form.
Scheduled Work:
Scheduled work is anticipated work on a scheduled task. It normally has no drawings and is usually only a concept with some requirements. A proposed schedule for this work is submitted to Dennis Egan, degan@nrao.edu, and after a review and possibly some discussion the requestor and the shop it is included on the Shop Schedule as a scheduled task. This holds a spot in the shop schedule which anticipates receiving a work order and documentation (drawings) necessary to convert this scheduled task into a submitted task prior to the scheduled start. If the Work Order is not received prior to the scheduled start, the job may be treated as a newly submitted job and be subject to the buffeting of other project scheduling priorities.
Submitted Work:
Submitted work is a job that is ready for work to begin. It is initiated by submitting a Work Order Form accompanied by a work package to Mike Hedrick, Shop Foreman. The work package usually consists of fabrication drawing but can be a sketch or a set of requirements. The rule for work packages is they must be complete enough to begin work without the requestor present. The shop is capable of working from concepts but the requirements must be defined. A fabrication from concept or a design with errors will usually take longer to complete than a fully developed design.
Feel Free to discuss concepts and manufacturability with Mike Hedrick and the shop personnel prior to submission but ALL WORK MUST BE SUBMITTED THROUGH MIKE HEDRICK no matter what the size or nature of the job.
The precedence of the work in the is based on the following criteria:
1. The order received in the shop.
- Scheduled work is considered received if the work package is received prior to scheduled start. Queue position can be negotiated between people within the queue or arbitrated by their supervisor
2. Shop resource efficiency.
- Some work requires special equipment, a special setup, or a specific skill, and must be scheduled based on the availability of these resources.
3. Work priority
- Work with a high priority can bump other work in the shop. High priority work includes telescope repair work and work determined to be priority by division heads, the planning committee, or the site director.
|
|
Where should I look for more information?
|
|
|
|
Shop News
|
- The shop, working with Bob Simon, has begun developing a quartz window fabrication capability. The photo below shows the window in the vacuum chuck being surface ground to precise flatness.
- The EVLA X-band Feed is the largest feed section ever fabricated in the Central Instrument Shop.
- The Completed Feed.
|
|
Updated 28 May 2008
