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Drill Press

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Scott

07-28-1999 11:01:38




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We are a custom plastic injection molder looking for a drill press to remove injection points on the molded parts called sprues. These sprues require spot facing or trimming flush with the part. We accomplish this task now with a manual drill press and milling bit.

We are looking for a drill press that would reduce some our nonconformaces caused by manually operating the drill press.

The drill press we have in mind is an automated one that would use a set speed and feed rate to a prescribed depth with a push of a button.

Does this sort of drill press exist? If so where can I go to look and discuss details.

Thanks, Scott.

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Neal

09-20-1999 05:28:21




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 Re: Drill Press in reply to Scott, 07-28-1999 11:01:38  
I have worked in the plastics field for years. The best way is in a CNC mill. But I have also used a routter with a carbide endmill and a soft plastic face. It is very idoit proof!
good luck Neal P&T Machine



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jeff w

07-29-1999 07:44:05




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 Re: Drill Press in reply to Scott, 07-28-1999 11:01:38  
they do make drill presses with power feed. You simply dial in feed rate, engage power feed. The power feed disengages at a pre set depth.
try do-all @ 1-800-92-doall.



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TomH

07-28-1999 18:07:24




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 Re: Drill Press in reply to Scott, 07-28-1999 11:01:38  
Not quite sure why an auto feed would help. It sounds like the depth of the cut is the issue, maybe a stop attached to the end mill would do what you want.



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big fred

07-28-1999 20:01:50




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 Re: Re: Drill Press in reply to TomH, 07-28-1999 18:07:24  
I agree with Tom H. If you want an inexpensive machine, get a mortising machine (see a woodworking tool supplier) and replace the drill with a end mill and have a custom collar fabricated that you would use in place of the chisel. Set the end mill flush with the end of the collar (perhaps proud of it by whatever your customer's tolerance is, to account for wear of the end mill), and de-sprue to your heart's content.

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Tom S.

07-28-1999 11:25:42




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 Re: Drill Press in reply to Scott, 07-28-1999 11:01:38  
You may have to automate your press, by installing an electric feed motor connected to 2-way automated circuitry, or limit switches. Should not involve too much fabrication, unless your co. has the budget to have a special 1 of a kind piece of manufacturing equipment designed and built. Tom S.



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