if this is what i think it is, i doubt you'll ever find much use for it at the engraving bench. the focus should be done in the vertical mode with a knob rather than rotating the lens.
even the low priced diamond disks shoulld give reasonable service life. is the rpm too fast ? do you exert too much down pressure ? do you use lube, or do you run dry / the plastic "disks", can they be chisseled off ? the grs hones and diamond disks are a good investment. i think ( guess) that...
for a first outta the gate, not too shabby. i'd practice drawing spines in odd spaces to improve the design process. the central spine on the left side is a bit squashed . the spines if off, will hijack anything you do after they have been cut.you cutting looks ok to me, just a bit of pencil...
i'm not telling you to do this-- but i had a leica. i could only find a .5 at the time that was about 1.5mm shy for a perfect fit. as a test i taped the lens in place with duct tape. it worked so i set about to epoxy the lens in place. was ugly as heck, but it worked. i eventually fitted one of...
bad news, bro. i took the pvc plate to my local post office. they want 40 us dollars to mail the piece to you. personally, i don't think this is a wise thing to do. it's your call, but i think it would be silly to spend all that cash for such a simple piece of plastic.
let me know what you...
i've seen quite a few mini frogs when i was undergoing junngle training. maybe not this particular one. not safe to handle most of them. paralysis and other crap can happen if you handle them
well, the quality of your piece smacks of professionalism. engraving is not a race. with practice, one can learn of techniques and simple time saving tricks that do lessen the time needed to do quality work.
yes. i cut criss cross grooves all over the plate. this not only aids in the glue forming a good anchor, the grooves allow the alcohol to penetrate much faster for a very easy release. send me yer mailing address and dimensions of what you want. i'll send you a piece.
there's really only two choices--- hss or carbide. i know of no other special alloys for cnc or pantograph work. there are diamond points configured to create wider, frosty looking cuts when used in rotary mode rather than just the typical drag or scratch mode.