Any reason you cant mill these flat and then bend them around the correct diameter pipe?
Yup, brass won't bend worth a shit. It cracks/breaks. Similar to aluminum.
Jump to content
Posted 23 December 2018 - 07:39 PM
Going to cut on your mill? Going to need a really tiny endmill for the detail and those are a real PITA without mega rpm's. I have been thinking of one of those china air cooled router spindles as a sub spindle for such things, 800 watt (about 1hp) with a vfd is under $200 these days, 24000 rpm max and a er collet, Pretty small too, about 2-1/2 x6-1/2 round. Maybe later this year.
Posted 05 March 2019 - 10:41 PM
Posted 05 January 2020 - 02:48 PM
I am to the point of wanting a medallion for my .357 gun. Anyone have any drawing files for one? Engraving is a new area for me, going to have to practice on some scrap aluminum sheet.
I have looked at etched medallions as a alternative but the etching is very shallow so not as nice as one engraved.
Also looked at diamond drag engraving.
Have to experiment but need a drawing file. Hate to start from scratch if I don't have to.
Posted 06 January 2020 - 12:25 AM
Sparky are you going program a cnc to make these?
Well, I am going to try to ! Its new territory for me so some experimenting will be needed. My bridgeport is really the wrong machine for the job, a LOT more rpm's are the norm. The time may get prohibitive.
Posted 08 January 2020 - 01:31 PM
Sparky, Here’s a .DXF of what I started.Should be easy to editGood Luck
Been playing with this some. The DXF imports as only one layer of line art. The text is shown as lines rather than fonts, so editing the text is not possible. I can delete text, no problem there. The letter "S" in "Gatling's" I cannot select, it appears to not be a closed shape for some reason. I was able to extrude the other letters as raised type, no problem there, I was also able to assign a toolpath to those letters I raised. I simulated a engraving toolpath with everything BUT that letter "S"
That problem with the letter "S" described above is the main problem. I was going to use the drawing with the exception of "Klienfeldt" which I deleted BUT I cannot do anything with that letter "S". Being its not recognized as a font but rather a series of lines, and not finding a similar font in windows, I cannot simply replace that one letter "S" I suspect the font is not a standard windows font but rather one added or included with the software used to design the medallion.
SO...... Its looking like I will have to do a new drawing but can reuse the gun artwork at least. Its OK, will be educational to layout something like this and add it to my bag of tricks.
This whole gun project has been a great learning experience which was the main reason for doing it.
Posted 08 January 2020 - 07:40 PM
Found a couple other original medallion pics. Apparently some say Gatling, others say Gatling's . SO... it may not be that bad to just leave the S off completely.
(I have not got to try the new parasolid file yet )
0 members, 0 guests, 0 anonymous users