A mill actually locks the cutting tool in. You can get shouldered bits where the shank is reduced to 10 or 12mm. This should result in the sensor being close enough to the aperture of the box to be able to reach focus in the PST. I have some plastic project boxes, but I'm not sure how best to cut the holes I do need. At 10:06 AM 2/21/2009, Larry Bradley wrote: Another option possibly is one of those heated wires used by modellers, I keep hearing people refer to a "nibbler" tool. it does take a little practice to get a perfect line, but a nibbler can definitely achieve it. Once you have the shape in the plastic fire up the gascat with the new tip. Keep your sand paper at an almost parallel angle to the pipe to remove chips and flakes of plastic. Heat it up with a cigarette lighter, on top the stove (gas stove I’ve never tried it with an electric stove Make these holes as close to one another as possible. I wasn't aware of the existence of the conical drill bits. but the safest method with respect to cracking or marring. If the plastic is soft (e.g. Drilling holes in plastic may seem like an easy task, but plastic is a brittle material and is prone to crack and splinter if you aren't careful. With a portfolio of around 4,000 different plastic packaging solutions, we’re the world’s number one provider of packaging for high-quality cutting tools – and we have been for decades. I thought when a blacksmith wanted a hole in something they got it hot and used a hardened point with a hammer, Welding plastic seems to be such a common use of soldering irons that I'm surprised you can't get special bits for it, You need to be a member in order to leave a comment. 99 Join Prime to save $5.00 on this item With my poor DIY skills in mind I need a means of cutting a 13.5mm circular hole into the plastic housing. Drill at least 6 holes in the plastic you want to remove or cut through. Twist bits are ideal for cutting hard plastics. Goes from about 8mm up to 30mm diameter. Lining them up usually works, more or less. Cutting holes sideways, I am kind of worried about detachment. Watch your 02-16-2015, 03:34 PM So I have to cut out holes for some 9V battery trays in the side of a plastic box. The preferred option is an electricians hole saw kit (Starrett) but that comes at fixed diameters relating to cable sizes etc. And for cutting thin plastic or sheet metal they're probably fine. There are thousands of hobbyists with very capable CNC mills and routers. I believe you are referring something only available online and cost about US$1500. I need to cut some rectangular holes in some diecast boxes to fit sockets etc. If you want to drill plastic use a drill bit that is sharpened for wood - See the picture, both these are 10mm bits. Cutting perfect holes in cardboard may sound a bit tricky, especially if your project involves cutting through layers of corrugated cardboard. The reduced shank drills are officially "Blacksmiths drills" in catalogues. Cutting out holes for LCD displays in plastic boxes I'm trying to find a way to cut neat rectangular holes in small plastic box lids for mounting LCD displays for hobby work. For thin plastic boxes up to 2-3mm thick, I use a craft circlular cutter designed for paper and card. If you want to drill a 13.5mm hole you may find it hard to get a bit in that size. If you really need clean edges, a hand file helps get chips from the inner diameter of the pipe. Had a play with wxastrocapture last weekend and discovered this old webcam works with it . Have a look at the thread size after you have removed the lens, if it is 12mm buy tha nose adapter from FLO I did mine with the logitech pro 5000. Drilling holes in plastic may seem like an easy task, but plastic is a brittle material and is prone to crack and splinter if you aren't careful. Never use a scriber as even the slightest scratch is a certain crack starter! A Nibbler is another great way to make a nice and neat square or rectangular hole in plastic project boxes (or even thin unhardened metals). David Smith, July 14, 2012 in DIY Astronomer. The reduced shank drills are officially "Blacksmiths drills" in catalogues. Initially I thought I could drill the hole, but I do not have a large enough drill bit. Is that only for, > Another option possibly is one of those heated wires used by, > I keep hearing people refer to a "nibbler" tool, http://mailman.mit.edu/mailman/listinfo/piclist, http://www.rotozip.com/Learn/ChoosingRightBit, http://www.youtube.com/watch?v=eLJn5YYNmUo, http://www.youtube.com/watch?v=nyeIdvwTZxc, http://home.clear.net.nz/pages/joecolquitt/cases_sm.jpg, http://home.clear.net.nz/pages/joecolquitt/template_sm.jpg, http://home.clear.net.nz/pages/joecolquitt/label3.jpg, http://home.clear.net.nz/pages/joecolquitt/0polycut.html. (I know they cut through plastic Easter eggs, but that's another story.) By using this site, you agree to our Terms of Use. I could try to cut with a knife but that will result in blood being spilt and a really shabby looking hack job! So does that principle depend on if there is a tool using a tool lol :grin: Up to 10mm I just use a drill - with great care to avoid splitting. Plastic boxes have knockouts that provide a cable entry into the boxes, as shown in Figure 1. kevlar in vacuumed bagged with a coat of resin on the inside How I Made My Kevlar Fuel Tanks | Making a Composite Fuel Tank for a Boat | Kevlar Carbon Fibre Tank - … Would wood boring cut Would wood boring cut OT- Preferred method for cutting conduit fitting holes in plastic enclosures ? On a drill the only thing holding the chuck in is the taper. you can buy cone shaped drill bits which can be used to gradually increase the size of a hole until it's correct. It's not the sort of tool you'd end up using very often though. I have used a soldering iron to adjust the shape of thermoplastic I've also used it to weld joins. Our packaging tubes , cassettes , boxes , and cases ensure optimum product protection against damage, moisture, dust and … The problem is drills are not meant for lateral motion and mills are. I too have one of those conical bits which is great for opening up holes further or for non-standard sizes. Powered by Invision Community. Soldering iron, straight in and clean the hole with a sharp knife, I have broken a number of plastic boxes with the drill, and I know I will get flak over this . Avoid using a jigsaw/scroll saw, lol. I've also managed to cut very large holes with a utility knife, and it was Indeed you can. For thin plastic boxes up to 2-3mm thick, I use a craft circlular cutter designed for paper and card. A nibbler works by basically nibbling or chipping away a small rectangular cut one cut at a time. Separate the draw stud and punch and remove the little ring of waste material lodged inside the die. Handy things to have around. Hi All - Most small projects wind up living in small project boxes, usually plastic boxes from Rat-Shack or similar. The boxes come with no holes in them. Sign up for a new account in our community. The best lubricant I have ever found is good old saliva (Yup - just spit on it!). - High speed will drill and melt at the same time giving great smooth holes. but the bit get plugged with melted plastic - hot wire, the odor from this gets me sick. In any case, support the back of the surface you're drilling with a chunk of scrap timber it at all possible and you'll get a much nicer result. Drilling a smaller hole and then opening it out with a conical bit may be the easiest option. The pre-made cases have holes for every port, which I don't need (and sometimes I have sensors and other things that need holes of their own). Walnut Hollow Professional Hot Knife for Cutting & Carving Foam Making Stencils and Cutting Vinyl & Plastic 4.3 out of 5 stars 964 $20.32 $ 20 . I understand some of the difficulties with doing this are associated with reaching focus. Copyright © 2019 Stargazers Lounge Our commitment to a high level of service along with our wide knowledge and Takes a while but cuts a nice clean hole. Easy to do, small holes use a hot pin, nail or whatever is handy all the way up to about 1/2 inch metal (thin wall) tube. This will weaken the structure of the plastic. Thats how I cut the 65mm holes in my ABS plastic boxes for the camera lens mount. Where the hole diameter is not a convenient hole saw size, then a powered cone cutter or a hand tapered reamer is invaluable. So my plan is to remove the main board from the Quickcam and mount it in a small plastic box (similar to a project box, if it works I will purchase something intended for the job). 4"x6" box) piece of plastic isn't easy. :Envy: :eek: The smell will soon disappear, but the hole will remain forever. agree with comments above - one thing to do is if you can, clamp the plastic between two think pieces of wood and go straight though - that way you'll have less chance of splitting it. In the past I've drilled a series of small holes, then used a coping saw to cut out the piece. If you can put a piece of timber inside the box and drill from the outside that's obviously better because any rough edges will be on the inside where they won't be seen. a forstner bit might be a good investment too. I got some of those large plastic J-boxes. A bunch of smaller holes are always better than a few larger ones. too much exposure to nasty organic substances I guess. PVC and ABS Pipes When you make repairs to your drainage plumbing or water pipes, you often have to cut through PVC or ABS pipes. Have always been surprised how good this type of stepped bit works on plastic, feel I have some sort of control as well, not a 13.5mm step tho(12 or 14). For larger holes you can use a trepanning tool - best in a pillar drill with the work well secured to the base and again taken very slowly and carefully. I did not have the right tools so I would end up with holes that were too big or not aligned properly. and a hand reamer would be easier to control http://www.ebay.co.u...#ht_2339wt_1250 for adjustments. Figure 1 - Plastic electrical box showing cable knockouts. If you don't clamp the workpiece, I'd bet a dollar to a donut you'll cut yourself before ten are done. It's not uncommon for lower-powered drills to have a chuck with a maximum shank diameter of 12mm or 12.5mm. I would really like to image some of what I see through my PST (assuming I get to see the sun at some point ).