made from an old drill and offcuts of plywood that were too small for alaster to make meta terrahorns out of
alans lathe cost more than my house ,so as a lathing novice i thought id make something to practice on with a budget that suits my lathe experience.
Step 2: First Slider
as i was making the various slides i was adjusting the design.
the basic concept remains the same, layers of like sized pieces with holes through them. glued and screwed together.
Step 3: Images of the Threaded Steel Plate
when cutting metal do not put your phone on the table , the speaker will pick up iron filings.
Marking the side helps them stay in order.
i was using 10mm tube and a 10mm drill. i found that i had to fudge out the holes a bit to get the tube to fit.
i later omitted the nylocks inside the slide to increase range and reduce friction, having them only on the outside edges is enough to hold it together.
Step 6: Second Slide
the first slide had a bit of a wobble so i increased the amount of material sliding along the runners.
working out how it is all going to go together. the top of the slide table goes on last,
Step 8: Your Cross Slide
i added steel rules to reduce wobble and they act as a guide to how much slide there is.
i decided to experiment with staining and waxing the table, i wish i hadn't.
Step 9: Slide Design 3
- More things to do , tho this should have less wobble/range issues than the previous 2,
- Cross slide has been glued and screwed together so dissembling would be destructive.and my materials are limited. to increase the x axis i will slide the motor.
Step 10: Slide 3 Assembely Notes
- Drill all the holes then split the sliding blocks.
- Coach bolts are firmly attached to the lower portion of the slide. with a recess to give space to the retaining nuts.
- Rails are such a tight fit that the end pieces are not necessary.
- Threaded plates are screwed to the top portion of the slide only.
- Top piece connecting the 2 slides is attached after the threaded bar is inserted, so that the distance does not interfere with the thread spacing.
Step 11: Attaching the Slide to the Base
- The design has no z axis so the cross sliide table tool post thing has to be level with the drill chuck. adding spacers where needed.
- Using levels glue and clamps, leave to dry overnight.
- Screws from underneath the next day make doubly sure its not going to move anywhere it shouldn't.
Step 12: The Tool Post Holder Bit
- Myford quick release type because the price is reasonable, i was not sure how the quick release bit was supposed to work. but they came as a set of 2.the details can be dealt with later.
- Start by cutting two pieces of ply to match the wibbley edge with a coping saw.
Step 13: The Quick Release Bit
- Cut a piece of metal that would be captive within the slot, then tapped a thread in it.
- Tightening the bolt locks the metal bits together .
- Tightening the wing nut pulls all the metal bits toward the wood,
Step 14: Tailstock
- Secondary chuck that can hold tools or a centering point. its a big lump of wood with a hole that is parallel with the motor chuck.
- the threaded bar that fits the chuck i had to be order specifically, because its an imperial thread, 3/8"x24pitch
Step 15: Power ,safety & Detailing
- Household plug socket serves as a switch so i dont have to mess about with the trigger locking mechanism, pulling the plug acts as an easy access emergency stop.
- Tool trays by putting an edge in from scrap material then lined with suede, so my bits and bobs will rattle less and not roll onto the floor.
- Anti flying particle shield is made from a security light frame and a piece of polycarbonate.Hinged so tooling can be changed with less obstruction.
Step 16: Calibration Ho Ho Ho
- by turning the handle 10 rotations the slide moves 12mm
- 12mm / 10 = 1.2mm per rotation
- if i divide the wheel into 12 each slice is 0.1mm
- Marking 12 sections is easy because the nuts have 6 sides, so by cutting a slot at every edge and the middle of every flat.
- Add diagonal lines to remind which way the table will travel when turn the thingy.
Step 17: DNJ52 Black'n'decker
The power plant is old , tired and obsolete,
- Gearbox was almost dry,and exploded when i opened it so reassembly took some guesswork. there is still a lot of movement where there shouldn't be any.
- Original cable was even shorter than the white one i fitted, it was only connected to the switch with gravity.
- Its standard tiny keyed chuck needed to be upgraded to a bigger keyless one.
the drill in the video differs as the one i was planning to use had not arrived yet.
Step 18: Results, Conclusion , What Next
- here are the test pieces, wood aluminum and hardened steel. not bad considering that the drill is pretty much shot.
- Next time i would use slide design 3 , and make the cross slide bigger so i don't need a third slide.
- I have a proper chuck now, and the motor from an industrial coffee grinder. so Mk 2 shouldn't be too far away.
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